CN-119646927-B - Hydropower station surge chamber height determining method and device and electronic equipment

Abstract

The application provides a hydropower station surge chamber height determining method, a device and electronic equipment, which are based on the head loss of a surge chamber of a target hydropower station, the head loss of a diversion tunnel of the target hydropower station and the mode that flow data in a pressure pipeline main pipe corresponding to the current working condition of the target hydropower station are processed through a surge chamber surge fusion algorithm, the influence of water flow inertia and head loss in a connecting pipe of the surge chamber is comprehensively considered, the obtained surge determining algorithm of the surge chamber is more accurate, and the surge extremum generating time is obtained by processing the surge extremum according to the surge extremum for a preset derivative value based on the surge determining algorithm of the surge chamber, so that the surge extremum generating time and the surge initial parameter corresponding to the current working condition are utilized to be processed through the surge determining algorithm of the surge chamber, and the height of the surge chamber can be reasonably determined while the safety is ensured according to the surge extremum.

Inventors

• ZHANG TIANYU
• DING JINGHUAN
• HAN WENFU
• Song Fanchao
• GUO WENCHENG
• GUI ZHONGHUA
• ZHANG FEI
• SUN XIAOXIA
• WANG HAOYANG

Assignees

• 国网新源集团有限公司
• 国网新源控股有限公司抽水蓄能技术经济研究院

Dates

Publication Date

20260512

Application Date

20241112

Claims (8)

1. 1. A hydropower station surge chamber height determination method, comprising: determining the head loss of a pressure regulating chamber of a target hydropower station, and determining the head loss of a diversion tunnel of the target hydropower station; Acquiring flow data in a main pipe of a pressure pipeline corresponding to the current working condition of the target hydropower station, and processing the flow data in the main pipe of the pressure pipeline through a surge fusion algorithm of the pressure regulating chamber based on the head loss of the pressure regulating chamber, the head loss of the diversion tunnel and the flow data in the main pipe of the pressure pipeline to obtain a surge determination algorithm of the pressure regulating chamber; Processing the time derivative according to the surge extremum as a preset derivative value based on the surge determining algorithm of the surge chamber to obtain the occurrence time of the surge extremum; determining a surge initial parameter corresponding to the current working condition, processing the surge initial parameter by using the surge extremum generation time and the surge initial parameter through the surge determination algorithm of the surge chamber to obtain a surge extremum, and determining the height of the surge chamber according to the surge extremum; The method for determining the head loss of the pressure regulating chamber of the target hydropower station and the head loss of the diversion tunnel of the target hydropower station comprises the following steps: acquiring surge data of the pressure regulating chamber The water turbine reference flow of the target hydropower station is Head loss generated by the pressure regulating chamber The water turbine quotes flow as Head loss in the diversion tunnel The water turbine reference flow is The flow velocity of the water flow in the diversion tunnel Large well area of the pressure regulating chamber Area in the diversion tunnel And the flow velocity in the diversion tunnel ; Surge data based on the surge chamber The water turbine quotes flow as Head loss generated by the pressure regulating chamber The water turbine quotes flow as Head loss in the diversion tunnel The water turbine reference flow is The flow velocity of the water flow in the diversion tunnel Large well area of the pressure regulating chamber And the area in the diversion tunnel Determining the head loss of the surge chamber of the target hydropower station by the following formula : Wherein, the ; Water head loss coefficient based on preset diversion tunnel And the flow velocity in the diversion tunnel Determining the head loss of the diversion tunnel of the target hydropower station by the following formula : ; The water head loss based on the pressure regulating chamber, the water head loss of the diversion tunnel and the flow data in the main pipe of the pressure pipeline are processed through a surge algorithm of the pressure regulating chamber to obtain a surge determining algorithm of the pressure regulating chamber, and the surge determining algorithm comprises the following steps: Based on the water head loss of the pressure regulating chamber and the water head loss of the diversion tunnel, the water head loss of the pressure regulating chamber and the water diversion tunnel momentum equation are combined to obtain a first pressure regulating chamber nonlinear surge equation; According to the flow data in the pressure pipeline main pipe, a second pressure regulating chamber nonlinear surge equation is obtained through the first pressure regulating chamber nonlinear surge equation; and obtaining a surge equation of the pressure regulating chamber by utilizing a nonlinear vibration equation which is built in advance by utilizing a surge parameter preset under the current working condition and being combined with the surge equation of the second pressure regulating chamber.
2. 2. The method of claim 1, wherein the obtaining a first surge chamber nonlinear surge equation based on the head loss of the surge chamber and the head loss of the diversion tunnel by combining a pre-constructed continuity equation of the surge chamber with a pre-constructed momentum equation of the diversion tunnel comprises: Head loss of the pressure regulating chamber And head loss of the diversion tunnel Substituting the continuity equation of the pressure regulating chamber, and simultaneously, setting up the momentum equation of the diversion tunnel to the flow velocity in the diversion tunnel Performing elimination treatment to obtain a nonlinear surge equation of the first pressure regulating chamber; The continuity equation of the pressure regulating chamber is specifically as follows: Wherein, the Representing the length of the diversion tunnel, Represents the area of the diversion tunnel, The flow in the diversion tunnel is represented, Represents the head loss of the diversion tunnel, Surge data representing the surge chamber, Representing the length of the connecting pipe of the pressure regulating chamber, Representing the area of the connecting pipe of the pressure regulating chamber, Represents the flow in the connecting pipe of the pressure regulating chamber, Indicating the acceleration of gravity and, The time is represented by the time period of the day, Representing head loss generated by inflow and outflow from the pressure regulating chamber; The diversion tunnel momentum equation is specifically as follows: Wherein, the Representing the large well area of the surge chamber, Surge data representing the surge chamber, The time is represented by the time period of the day, The flow in the diversion tunnel is represented, Flow data in a main pipe of a pressure pipeline representing the target hydropower station; the nonlinear surge equation of the first pressure regulating chamber is specifically as follows: Wherein, the , The natural frequency of the surge equivalent period of the surge chamber is represented, Indicating the acceleration of gravity and, Representing the large well area of the surge chamber, Represents the area of the diversion tunnel, Representing the area of the connecting pipe of the pressure regulating chamber, Representing the length of the diversion tunnel, Representing the length of the connecting pipe of the pressure regulating chamber, Surge data representing the surge chamber, The time is represented by the time period of the day, Indicating that the water turbine quotes flow as When the water head in the diversion tunnel is lost, Flow data in a main pipe of a pressure pipe representing the target hydropower station, Indicating that the water turbine quotes flow as When the water flow velocity in the diversion tunnel is high, , Indicating that the water turbine quotes flow as When the pressure regulating chamber generates head loss, Indicating that the water turbine quotes flow as And when the water head in the diversion tunnel is lost.
3. 3. The method of claim 1, wherein the second surge chamber nonlinear surge equation comprises a first sub-surge chamber nonlinear surge equation and a second sub-surge chamber nonlinear surge equation; The step of obtaining a second pressure regulating chamber nonlinear surge equation according to the flow data in the pressure pipeline main pipe through the first pressure regulating chamber nonlinear surge equation comprises the following steps: responding to the current working condition of the target hydropower station as load shedding, and the pressure pipeline main pipe flow data corresponding to the load shedding is 0, substituting the pressure pipeline main pipe flow data of 0 into the pressure pipeline main pipe flow data of the target hydropower station in a first surge chamber nonlinear surge equation Obtaining a nonlinear surge equation of the first sub-pressure regulating chamber; the nonlinear surge equation of the first pressure regulating chamber is specifically as follows: Wherein, the , The natural frequency of the surge equivalent period of the surge chamber is represented, Indicating the acceleration of gravity and, Representing the large well area of the surge chamber, Represents the area of the diversion tunnel, Representing the area of the connecting pipe of the pressure regulating chamber, Representing the length of the diversion tunnel, Representing the length of the connecting pipe of the pressure regulating chamber, Surge data representing the surge chamber, The time is represented by the time period of the day, Indicating that the water turbine quotes flow as When the water diversion tunnel has water head loss, Flow data in a main pipe of a pressure pipe representing the target hydropower station, Indicating that the water turbine quotes flow as When the water flow velocity in the diversion tunnel is high, , Indicating that the water turbine quotes flow as When the pressure regulating chamber generates head loss, Indicating that the water turbine quotes flow as When the water diversion tunnel is in the water diversion tunnel, the water head loss is reduced; the nonlinear surge equation of the first sub-pressure regulating chamber is specifically as follows: Wherein, the Surge data representing the surge chamber, The time is represented by the time period of the day, , The natural frequency of the surge equivalent period of the surge chamber is represented, Indicating the acceleration of gravity and, Representing the large well area of the surge chamber, Represents the area of the diversion tunnel, Representing the area of the connecting pipe of the pressure regulating chamber, Representing the length of the diversion tunnel, Representing the length of the connecting pipe of the pressure regulating chamber, , Indicating that the water turbine quotes flow as When the pressure regulating chamber generates head loss, Indicating that the water turbine quotes flow as When the water head in the diversion tunnel is lost, Indicating that the water turbine quotes flow as When the water diversion tunnel has water head loss, Represents the area of the diversion tunnel, Indicating that the water turbine quotes flow as The flow velocity of the water flow in the diversion tunnel or Responding to the current working condition of the target hydropower station as load increase, wherein the flow data in the main pipe of the pressure pipeline corresponding to the load increase is as follows The flow data in the main pipe of the pressure pipeline is as follows Substituting flow data in a main pipe of a pressure pipeline of the target hydropower station in a nonlinear surge equation of a first surge chamber Obtaining a nonlinear surge equation of the second sub-pressure regulating chamber; the nonlinear surge equation of the first pressure regulating chamber is specifically as follows: Wherein, the , The natural frequency of the surge equivalent period of the surge chamber is represented, Indicating the acceleration of gravity and, Representing the large well area of the surge chamber, Represents the area of the diversion tunnel, Representing the area of the connecting pipe of the pressure regulating chamber, Representing the length of the diversion tunnel, Representing the length of the connecting pipe of the pressure regulating chamber, Surge data representing the surge chamber, The time is represented by the time period of the day, Indicating that the water turbine quotes flow as When the water diversion tunnel has water head loss, Flow data in a main pipe of a pressure pipe representing the target hydropower station, Indicating that the water turbine quotes flow as When the water flow velocity in the diversion tunnel is high, , Indicating that the water turbine quotes flow as When the pressure regulating chamber generates head loss, Indicating that the water turbine quotes flow as When the water diversion tunnel is in the water diversion tunnel, the water head loss is reduced; The nonlinear surge equation of the second sub-pressure regulating chamber is specifically as follows: Wherein, the Representing the simple harmonic solution of the pressure regulating chamber under the load increasing working condition, The time is represented by the time period of the day, , The natural frequency of the surge equivalent period of the surge chamber is represented, Indicating the acceleration of gravity and, Representing the large well area of the surge chamber, Represents the area of the diversion tunnel, Representing the area of the connecting pipe of the pressure regulating chamber, Representing the length of the diversion tunnel, Representing the length of the connecting pipe of the pressure regulating chamber, , Indicating that the water turbine quotes flow as When the pressure regulating chamber generates head loss, Indicating that the water turbine quotes flow as When the water head in the diversion tunnel is lost, Indicating that the water turbine quotes flow as When the water diversion tunnel has water head loss, Represents the area of the diversion tunnel, Indicating that the water turbine quotes flow as And the water flow velocity in the diversion tunnel.
4. 4. The method of claim 3, wherein the surge chamber surge equation comprises a first sub-equation and a second sub-equation; the surge parameter preset under the current working condition is utilized to be combined with the surge equation of the second surge chamber through a pre-constructed nonlinear vibration equation, so as to obtain the surge equation of the surge chamber, which comprises the following steps: converting a pre-constructed nonlinear vibration equation to obtain a solution equation corresponding to the nonlinear vibration equation; The nonlinear vibration equation is specifically: Wherein, the The value of the independent variable is represented by, Representation of independent variables Is used for the second derivative of (c), The frequency is represented by a frequency value, The time is represented by the time period of the day, Representing the non-linear interference parameter(s), , Representing a nonlinear force; The solution form equation is specifically: Wherein, the The value of the independent variable is represented by, Indicating phase angle Is used as a function of the period of (a), Representing the non-linear interference parameter(s), , The amplitude of the wave is represented and, Represent the first The term cycle function is used to determine the time period, Representing the total number of terms, amplitude of the periodic function And phase angle Are all time Specifically, the function is: Wherein, the The amplitude of the wave is represented and, Indicating the phase angle of the light and, The time is represented by the time period of the day, The frequency is represented by a frequency value, Representing the non-linear interference parameter(s), , Represent the first The term cycle function is used to determine the time period, Representing the total number of terms of the periodic function, The equivalent damping ratio is indicated by the expression, Is of amplitude Is a function of (a) and (b), The natural frequency of the equivalent period is represented, Is of amplitude Is a function of (2); Determining a first-order approximate solution equation of the function, wherein the first-order approximate solution equation is specifically: Wherein, the The value of the independent variable is represented by, The amplitude of the wave is represented and, Indicating the phase angle of the light and, The time is represented by the time period of the day, Representing the non-linear interference parameter(s), , Representing the circumference ratio; will be preset Substituting the nonlinear vibration equation to obtain a nonlinear progressive equation; the nonlinear progressive equation is specifically: Wherein, the The nonlinear interference parameters of surge equations of the surge chamber under the load shedding working condition are represented, Surge data representing the surge chamber, The time is represented by the time period of the day, , The natural frequency of the surge equivalent period of the surge chamber is represented, Indicating the acceleration of gravity and, Representing the large well area of the surge chamber, Represents the area of the diversion tunnel, Representing the area of the connecting pipe of the pressure regulating chamber, Representing the length of the diversion tunnel, Representing the length of the connecting pipe of the pressure regulating chamber, , Indicating that the water turbine quotes flow as When the pressure regulating chamber generates head loss, Indicating that the water turbine quotes flow as When the water head in the diversion tunnel is lost, Indicating that the water turbine quotes flow as When the water diversion tunnel has water head loss, Represents the area of the diversion tunnel, Indicating that the water turbine quotes flow as The water flow velocity in the diversion tunnel; Responding to the current working condition as load shedding and preset surge parameters under the load shedding Substituting the nonlinear progressive equation into the first-order approximate solution equation to obtain a first substituted first-order approximate solution equation; the first substituted first-order approximation solution equation is specifically: Wherein, the The amplitude of the surge is represented by the amplitude of the surge, The phase of the surge is represented by the phase of the surge, The circumference ratio is indicated as such, , The natural frequency of the surge equivalent period of the surge chamber is represented, Indicating the acceleration of gravity and, Representing the large well area of the surge chamber, Represents the area of the diversion tunnel, Representing the area of the connecting pipe of the pressure regulating chamber, Representing the length of the diversion tunnel, Representing the length of the connecting pipe of the pressure regulating chamber, The nonlinear interference parameters of surge equations of the surge chamber under the load shedding working condition are represented, The nonlinear acting force of surge equations of the surge chamber under the load shedding working condition is represented, , Indicating that the water turbine quotes flow as When the pressure regulating chamber generates head loss, Indicating that the water turbine quotes flow as When the water head in the diversion tunnel is lost, Indicating that the water turbine quotes flow as The water flow velocity in the diversion tunnel; Carrying out ordinary differential equation solving on a first substituted first-order approximate solution equation to obtain a first ordinary differential equation, and taking the first ordinary differential equation as the first sub-equation; The first ordinary differential equation is specifically: Wherein, the Represents the extreme value of the surge, The amplitude of the surge is represented by the amplitude of the surge, The phase of the surge is represented by the phase of the surge, The circumference ratio is indicated as such, , Indicating that the water turbine quotes flow as When the pressure regulating chamber generates head loss, Indicating that the water turbine quotes flow as When the water head in the diversion tunnel is lost, Represents the initial amplitude of the surge corresponding to the load dump, Represents the initial phase of the surge corresponding to the load dump, The time is represented by the time period of the day, , Representing the large well area of the surge chamber, Represents the area of the diversion tunnel, Indicating that the water turbine quotes flow as When the water flow velocity in the diversion tunnel is high, Indicating that the water turbine quotes flow as The water head loss of the diversion tunnel when in use, or Responding to the current working condition as load increase, wherein the surge parameter preset under the load increase is that And Will be And Substituting the nonlinear progressive equation to obtain a substituted nonlinear progressive equation; The substituted nonlinear progressive equation is specifically: Wherein, the The nonlinear interference parameters of surge equations of the surge chamber under the load-increasing working condition are represented, Representing the simple harmonic solution of the pressure regulating chamber under the load increasing working condition, The time is represented by the time period of the day, Representing the number of operating units of the target hydropower station, Representing the large well area of the surge chamber, , The natural frequency of the surge equivalent period of the surge chamber is represented, Indicating the acceleration of gravity and, Representing the large well area of the surge chamber, Represents the area of the diversion tunnel, Representing the area of the connecting pipe of the pressure regulating chamber, Representing the length of the diversion tunnel, Representing the length of the connecting pipe of the pressure regulating chamber, Indicating that the water turbine quotes flow as When the water diversion tunnel has water head loss, Represents the area of the diversion tunnel, Indicating that the water turbine quotes flow as When the water flow velocity in the diversion tunnel is high, The phase of the surge is represented by the phase of the surge, The amplitude of the surge is represented by the amplitude of the surge, , Indicating that the water turbine quotes flow as When the pressure regulating chamber generates head loss, Indicating that the water turbine quotes flow as When the water diversion tunnel is in the water diversion tunnel, the water head loss is reduced; Substituting the substituted nonlinear progressive equation into the first-order approximate solution equation to obtain a second substituted first-order approximate solution equation; the second substituted first-order approximate solution equation is specifically: Wherein, the The nonlinear interference parameters of surge equations of the surge chamber under the load-increasing working condition are represented, Representing the simple harmonic solution of the pressure regulating chamber under the load increasing working condition, The time is represented by the time period of the day, Representing the number of operating units of the target hydropower station, Representing the large well area of the surge chamber, , The natural frequency of the surge equivalent period of the surge chamber is represented, Indicating the acceleration of gravity and, Representing the large well area of the surge chamber, Represents the area of the diversion tunnel, Representing the area of the connecting pipe of the pressure regulating chamber, Representing the length of the diversion tunnel, Representing the length of the connecting pipe of the pressure regulating chamber, Indicating that the water turbine quotes flow as When the water diversion tunnel has water head loss, Represents the area of the diversion tunnel, Indicating that the water turbine quotes flow as When the water flow velocity in the diversion tunnel is high, The phase of the surge is represented by the phase of the surge, The amplitude of the surge is represented by the amplitude of the surge, , Indicating that the water turbine quotes flow as When the pressure regulating chamber generates head loss, Indicating that the water turbine quotes flow as When the water diversion tunnel is in the water diversion tunnel, the water head loss is reduced; solving a normal differential equation of a second substituted first-order approximate solution equation to obtain a second normal differential equation, wherein the second normal differential equation is used as the second sub-equation; the second ordinary differential equation is specifically: Wherein, the , Representing the reference flow rate of the water turbine, Representing the large well area of the surge chamber, , , The natural frequency of the surge equivalent period of the surge chamber is represented, Indicating the acceleration of gravity and, Representing the large well area of the surge chamber, Represents the area of the diversion tunnel, Representing the area of the connecting pipe of the pressure regulating chamber, Representing the length of the diversion tunnel, Representing the length of the connecting pipe of the pressure regulating chamber, , Indicating that the water turbine quotes flow as When the pressure regulating chamber generates head loss, Indicating that the water turbine quotes flow as When the water head in the diversion tunnel is lost, The circumference ratio is indicated as such, , Indicating that the water turbine quotes flow as When the water flow velocity in the diversion tunnel is high, Representing the initial amplitude of the surge corresponding to the increased load, Representing the initial phase of the surge corresponding to the increased load, The time is represented by the time period of the day, Represents the extreme value of the surge, The amplitude of the surge is represented by the amplitude of the surge, Representing the surge phase.
5. 5. The method of claim 4, wherein the surge extremum occurrence time comprises a first surge extremum occurrence time and a second surge extremum occurrence time; The method for obtaining the occurrence time of the surge extreme value comprises the following steps of: Responding to the fact that the current working condition is load shedding and the derivative of the surge extremum to time is 0, substituting the preset derivative value of 0 into the first sub-equation to obtain a first derivative value substituted into the equation; the first sub-equation is specifically: Wherein, the Represents the extreme value of the surge, The amplitude of the surge is represented by the amplitude of the surge, The phase of the surge is represented by the phase of the surge, The circumference ratio is indicated as such, , Indicating that the water turbine quotes flow as When the pressure regulating chamber generates head loss, Indicating that the water turbine quotes flow as When the water head in the diversion tunnel is lost, Represents the initial amplitude of the surge corresponding to the load dump, Represents the initial phase of the surge corresponding to the load dump, The time is represented by the time period of the day, , Representing the large well area of the surge chamber, Represents the area of the diversion tunnel, Indicating that the water turbine quotes flow as When the water flow velocity in the diversion tunnel is high, Indicating that the water turbine quotes flow as The diversion tunnel is a head loss of (2); the first derivative value is substituted into an equation specifically: Wherein, the Represents the extreme value of the surge, The time is represented by the time period of the day, , The natural frequency of the surge equivalent period of the surge chamber is represented, Represents the area of the diversion tunnel, Representing the area of the connecting pipe of the pressure regulating chamber, Representing the length of the diversion tunnel, Representing the length of the connecting pipe of the pressure regulating chamber, Represents the initial amplitude of the surge corresponding to the load dump, Represents the initial phase of the surge corresponding to the load dump, The circumference ratio is indicated as such, , Representing the large well area of the surge chamber, Represents the area of the diversion tunnel, Indicating that the water turbine quotes flow as When the water flow velocity in the diversion tunnel is high, Indicating that the water turbine quotes flow as When the water diversion tunnel has water head loss, , Indicating that the water turbine quotes flow as When the pressure regulating chamber generates head loss, Indicating that the water turbine quotes flow as When the water diversion tunnel is in the water diversion tunnel, the water head loss is reduced; Substituting the first derivative value into an equation to perform simplification processing to obtain a surge extremum occurrence time equation of the first surge chamber, and solving the surge extremum occurrence time equation of the first surge chamber to obtain the first surge extremum occurrence time; the surge extremum generation time equation of the first pressure regulating chamber is specifically as follows: Wherein, the , The natural frequency of the surge equivalent period of the surge chamber is represented, Represents the area of the diversion tunnel, Representing the area of the connecting pipe of the pressure regulating chamber, Representing the length of the diversion tunnel, Representing the length of the connecting pipe of the pressure regulating chamber, The time is represented by the time period of the day, Represents the initial amplitude of the surge corresponding to the load dump, Represents the initial phase of the surge corresponding to the load dump, The circumference ratio is indicated as such, , Indicating that the water turbine quotes flow as When the pressure regulating chamber generates head loss, Indicating that the water turbine quotes flow as When the water diversion tunnel is in water head loss, or In response to determining that the current working condition is load increase and the derivative of the surge extremum with respect to time is 0, substituting the preset derivative value of 0 into the second sub-equation to obtain a second derivative value substituted into the equation; The second sub-equation is specifically: Wherein, the , Representing the reference flow rate of the water turbine, Representing the large well area of the surge chamber, , , The natural frequency of the surge equivalent period of the surge chamber is represented, Indicating the acceleration of gravity and, Representing the large well area of the surge chamber, Represents the area of the diversion tunnel, Representing the area of the connecting pipe of the pressure regulating chamber, Representing the length of the diversion tunnel, Representing the length of the connecting pipe of the pressure regulating chamber, , Indicating that the water turbine quotes flow as When the pressure regulating chamber generates head loss, Indicating that the water turbine quotes flow as When the water head in the diversion tunnel is lost, The circumference ratio is indicated as such, , Indicating that the water turbine quotes flow as When the water flow velocity in the diversion tunnel is high, Representing the initial amplitude of the surge corresponding to the increased load, Representing the initial phase of the surge corresponding to the increased load, The time is represented by the time period of the day, Represents the extreme value of the surge, The amplitude of the surge is represented by the amplitude of the surge, Representing the surge phase; the substitution equation of the second derivative value is specifically: Wherein, the Represents the extreme value of the surge, The time is represented by the time period of the day, , Representing the reference flow rate of the water turbine, Representing the large well area of the surge chamber, , , The natural frequency of the surge equivalent period of the surge chamber is represented, Indicating the acceleration of gravity and, Representing the large well area of the surge chamber, Represents the area of the diversion tunnel, Representing the area of the connecting pipe of the pressure regulating chamber, Representing the length of the diversion tunnel, Representing the length of the connecting pipe of the pressure regulating chamber, , Indicating that the water turbine quotes flow as When the pressure regulating chamber generates head loss, Indicating that the water turbine quotes flow as When the water head in the diversion tunnel is lost, , Indicating that the water turbine quotes flow as When the water flow velocity in the diversion tunnel is high, Representing the initial amplitude of the surge corresponding to the increased load, Representing an initial phase of the surge corresponding to the increased load; Substituting the second derivative value into an equation for simplification to obtain a second surge extremum occurrence time equation of the surge chamber, and solving the second surge extremum occurrence time equation of the surge chamber to obtain the second surge extremum occurrence time; the surge extremum generation time equation of the second pressure regulating chamber is specifically as follows: Wherein, the The time is represented by the time period of the day, Representing the initial amplitude of the surge corresponding to the increased load, Representing the initial phase of the surge corresponding to the increased load, , Representing the reference flow rate of the water turbine, Representing the large well area of the surge chamber, , , The natural frequency of the surge equivalent period of the surge chamber is represented, Indicating the acceleration of gravity and, Representing the large well area of the surge chamber, Represents the area of the diversion tunnel, Representing the area of the connecting pipe of the pressure regulating chamber, Representing the length of the diversion tunnel, Representing the length of the connecting pipe of the pressure regulating chamber, , Indicating that the water turbine quotes flow as When the pressure regulating chamber generates head loss, Indicating that the water turbine quotes flow as When the water head in the diversion tunnel is lost, , Indicating that the water turbine quotes flow as And the water flow velocity in the diversion tunnel.
6. 6. The method of claim 5, wherein the surge initial parameters include a surge initial amplitude and a surge initial phase, and wherein the surge extremum includes a first surge extremum and a second surge extremum; The determining of the initial surge parameter corresponding to the current working condition, the processing of the initial surge parameter through the surge determining algorithm of the surge chamber by utilizing the time of occurrence of the extreme surge value and the initial surge parameter to obtain the extreme surge value comprises the following steps: responding to the current working condition as load shedding, substituting the initial surge amplitude corresponding to the load shedding, the initial surge phase corresponding to the load shedding and the first surge extremum occurrence time into the first sub-equation to obtain the first surge extremum; The initial amplitude of the surge corresponding to the load shedding The method comprises the following steps: Wherein, the Representing the number of operating units of the target hydropower station, , The natural frequency of the surge equivalent period of the surge chamber is represented, Indicating the acceleration of gravity and, Representing the large well area of the surge chamber, Represents the area of the diversion tunnel, Representing the area of the connecting pipe of the pressure regulating chamber, Representing the length of the diversion tunnel, Representing the length of the connecting pipe of the pressure regulating chamber, Indicating that the water turbine quotes flow as When the water flow velocity in the diversion tunnel is high, Indicating that the water turbine quotes flow as When the water head in the diversion tunnel is lost; the initial phase of the surge corresponding to the load shedding The method comprises the following steps: Wherein, the Representing the number of operating units of the target hydropower station, Indicating that the water turbine quotes flow as When the water head in the diversion tunnel is lost, Represents the initial amplitude of the surge corresponding to the load dump, So that For the fourth quadrant angle, the angle of the fourth quadrant, Representing the circumference ratio; the first sub-equation is specifically: Wherein, the Represents the extreme value of the surge, The amplitude of the surge is represented by the amplitude of the surge, The phase of the surge is represented by the phase of the surge, The circumference ratio is indicated as such, , Indicating that the water turbine quotes flow as When the pressure regulating chamber generates head loss, Indicating that the water turbine quotes flow as When the water head in the diversion tunnel is lost, Represents the initial amplitude of the surge corresponding to the load dump, Represents the initial phase of the surge corresponding to the load dump, The time is represented by the time period of the day, , Representing the large well area of the surge chamber, Represents the area of the diversion tunnel, Indicating that the water turbine quotes flow as When the water flow velocity in the diversion tunnel is high, Indicating that the water turbine quotes flow as The water head loss of the diversion tunnel when in use, or Responding to the current working condition as load increase, substituting the initial surge amplitude corresponding to the load increase, the initial surge phase corresponding to the load increase and the second surge extremum occurrence time into the second sub-equation to obtain the second surge extremum; The initial amplitude of the surge corresponding to the increased load The method comprises the following steps: Wherein, the Representing the current number of operating units of the target hydropower station, Representing the original number of operating units of the target hydropower station, Indicating that the water turbine quotes flow as When the water diversion tunnel has water head loss, Represents the area of the diversion tunnel, Indicating that the water turbine quotes flow as When the water flow velocity in the diversion tunnel is high, Representing the large well area of the surge chamber, , The natural frequency of the surge equivalent period of the surge chamber is represented, Indicating the acceleration of gravity and, Represents the area of the diversion tunnel, Representing the area of the connecting pipe of the pressure regulating chamber, Representing the length of the diversion tunnel, Representing the length of the connecting pipe of the pressure regulating chamber; The initial phase of the surge corresponding to the load increase The method comprises the following steps: Wherein, the Representing the current number of operating units of the target hydropower station, Representing the original number of operating units of the target hydropower station, Indicating that the water turbine quotes flow as When the water diversion tunnel has water head loss, Representing an initial amplitude of the swell corresponding to the increased load; The second sub-equation is specifically: Wherein, the , Representing the reference flow rate of the water turbine, Representing the large well area of the surge chamber, , , The natural frequency of the surge equivalent period of the surge chamber is represented, Indicating the acceleration of gravity and, Representing the large well area of the surge chamber, Represents the area of the diversion tunnel, Representing the area of the connecting pipe of the pressure regulating chamber, Representing the length of the diversion tunnel, Representing the length of the connecting pipe of the pressure regulating chamber, , Indicating that the water turbine quotes flow as When the pressure regulating chamber generates head loss, Indicating that the water turbine quotes flow as When the water head in the diversion tunnel is lost, The circumference ratio is indicated as such, , Indicating that the water turbine quotes flow as When the water flow velocity in the diversion tunnel is high, Represents the initial amplitude of the surge corresponding to the increased load, Represents the initial phase of the surge corresponding to the increased load, The time is represented by the time period of the day, Represents the extreme value of the surge, The amplitude of the surge is represented by the amplitude of the surge, Representing the surge phase.
7. 7. Hydropower station surge chamber height determining device, characterized in that the hydropower station surge chamber height determining device based on any one of claims 1-6 comprises: a head loss determination module configured to determine a head loss of a surge chamber of a target hydropower station, and to determine a head loss of a diversion tunnel of the target hydropower station; The fusion processing module is configured to acquire flow data in the main pipe of the pressure pipeline corresponding to the current working condition of the target hydropower station, and process the flow data in the main pipe of the pressure pipeline through a surge fusion algorithm of the pressure regulating chamber based on the head loss of the pressure regulating chamber, the head loss of the diversion tunnel and the flow data in the main pipe of the pressure pipeline to acquire a surge determination algorithm of the pressure regulating chamber; The time determining module is configured to process the time derivative according to the surge extreme value as a preset derivative value based on the surge determining algorithm of the surge chamber to obtain the occurrence time of the surge extreme value; The height determining module is configured to determine a surge initial parameter corresponding to the current working condition, process the surge initial parameter through the surge determining algorithm of the surge chamber by utilizing the surge extremum occurrence time and the surge initial parameter to obtain a surge extremum, and determine the height of the surge chamber according to the surge extremum.
8. 8. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the method of any one of claims 1 to 6 when the program is executed by the processor.

Description

Hydropower station surge chamber height determining method and device and electronic equipment Technical Field The application relates to the technical field of water conservancy and hydropower engineering, in particular to a hydropower station surge chamber height determining method, a hydropower station surge chamber height determining device and electronic equipment. Background The hydropower set of the hydropower station needs stable water flow in operation, and the water flow which is too large or too small can damage the hydropower machine, and particularly, when the water flow is large, disastrous accidents of the set, such as vibration, collision, contact and the like of the set, can be caused, so that overload or destructive oscillation and the like of the set can be caused. Therefore, the pressure regulating chamber is required to regulate and control the water flow, so that the water flow pressure tends to be stable. However, if the design of the height of the pressure regulating chamber is unreasonable, the operation safety of the hydraulic machine cannot be ensured. Therefore, how to reasonably determine the height of the pressure regulating chamber while ensuring the safety is a technical problem to be solved at present. Disclosure of Invention In view of the above, the present application aims to provide a hydropower station surge chamber height determining method, device and electronic equipment, which are used for solving or partially solving the above technical problems. Based on the above object, a first aspect of the present application provides a hydropower station surge chamber height determining method, including: determining the head loss of a pressure regulating chamber of a target hydropower station, and determining the head loss of a diversion tunnel of the target hydropower station; Acquiring flow data in a main pipe of a pressure pipeline corresponding to the current working condition of the target hydropower station, and processing the flow data in the main pipe of the pressure pipeline through a surge fusion algorithm of the pressure regulating chamber based on the head loss of the pressure regulating chamber, the head loss of the diversion tunnel and the flow data in the main pipe of the pressure pipeline to obtain a surge determination algorithm of the pressure regulating chamber; Processing the time derivative according to the surge extremum as a preset derivative value based on the surge determining algorithm of the surge chamber to obtain the occurrence time of the surge extremum; Determining a surge initial parameter corresponding to the current working condition, processing the surge initial parameter by using the surge extremum generation time and the surge initial parameter through the surge determination algorithm of the surge chamber to obtain a surge extremum, and determining the height of the surge chamber according to the surge extremum. Based on the same inventive concept, a second aspect of the present application provides a hydropower station surge chamber height determining device, comprising: A head loss determination module configured to determine a head loss of a surge chamber of the target hydropower station, and to determine; The fusion processing module is configured to acquire flow data in the main pipe of the pressure pipeline corresponding to the current working condition of the target hydropower station, and process the flow data in the main pipe of the pressure pipeline through a surge fusion algorithm of the pressure regulating chamber based on the head loss of the pressure regulating chamber, the head loss of the diversion tunnel and the flow data in the main pipe of the pressure pipeline to acquire a surge determination algorithm of the pressure regulating chamber; The time determining module is configured to process the time derivative according to the surge extreme value as a preset derivative value based on the surge determining algorithm of the surge chamber to obtain the occurrence time of the surge extreme value; The height determining module is configured to determine a surge initial parameter corresponding to the current working condition, process the surge initial parameter through the surge determining algorithm of the surge chamber by utilizing the surge extremum occurrence time and the surge initial parameter to obtain a surge extremum, and determine the height of the surge chamber according to the surge extremum. Based on the same inventive concept, a third aspect of the present application provides an electronic device comprising a memory, a processor and a computer program stored on the memory and executable by the processor, the processor implementing the method as described in the first aspect above when executing the computer program. From the above, it can be seen that the method, the device and the electronic equipment for determining the height of the surge chamber of the hydropower station provided by the application determ