CN-122026355-A - Frequency modulation test method, coordination controller and storage medium

CN122026355ACN 122026355 ACN122026355 ACN 122026355ACN-122026355-A

Abstract

The application discloses a frequency modulation test method, a coordination controller and a storage medium, which belong to the technical field of new energy power generation, and are applied to the coordination controller, and the frequency modulation test method comprises the steps that the frequency modulation module adjusts dead zones and adjustment difference coefficients according to received power grid frequency and preset frequency to determine energy storage and adjust active power; the energy storage simulation module is used for simulating the operation of the energy storage station according to the first active adjustment instruction and preset operation parameters to obtain first energy storage simulation power, feeding back the first energy storage simulation power to the frequency modulation module, and judging whether the first energy storage simulation power meets the frequency modulation requirement or not. According to the application, the testing equipment such as an energy storage, variable flow and boosting integrated machine, a battery compartment and the like is not required, and the testing difficulty of the frequency modulation function of the coordination controller is reduced.

Inventors

PAN CHENGCHAO
XU JUN

Assignees

上海正泰自动化软件系统有限公司
北京和信瑞通电力技术股份有限公司

Dates

Publication Date: 20260512
Application Date: 20250930

Claims (10)

1. A frequency modulation test method, applied to a coordination controller, the coordination controller comprising an energy storage simulation module and a frequency modulation module of an energy storage station, the method comprising: The frequency modulation module is used for determining energy storage and active power adjustment according to the received power grid frequency, a preset frequency adjustment dead zone and a difference adjustment coefficient; the frequency modulation module adjusts active power according to the stored energy to generate a first active adjusting instruction; the frequency modulation module sends the first active adjustment instruction to the energy storage simulation module, wherein the first active adjustment instruction is used for indicating the energy storage simulation module to simulate the operation of the energy storage station according to the first active adjustment instruction and preset operation parameters, so as to obtain first energy storage simulation power, and the first energy storage simulation power is fed back to the frequency modulation module; the frequency modulation module judges whether the first energy storage analog power meets frequency modulation requirements.
2. The method of claim 1, wherein the tuning demand comprises a demand for a command response speed, the coordination controller further comprising a command detection module; after the active power is adjusted according to the stored energy and the first active adjustment instruction is generated, the method further comprises: transmitting the first active adjustment instruction to the instruction detection module; Judging whether the time length between the acquisition time of the power grid frequency and the output time of the first active regulation command is smaller than a preset time length, wherein the output time is the time when the command detection module outputs the first active regulation command; And when the time length between the acquisition time and the output time is smaller than the preset time length, determining that the instruction response speed of the coordination controller meets the instruction response speed requirement.
3. The method of claim 1, wherein the frequency modulation requirement comprises a secondary modulation requirement; Before the determining whether the first energy storage analog power meets the frequency modulation requirement, the method further includes: When a first power difference between the energy storage adjusting active power and the total power of the first energy storage simulation power is larger than a preset threshold value, generating a second active power adjusting instruction according to the first power difference; the second active adjusting instruction is sent to the energy storage simulation module, and the second active adjusting instruction is used for indicating the energy storage simulation module to simulate the operation of the energy storage station according to the second active adjusting instruction and the preset operation parameter, so as to obtain second energy storage simulation power, and the second energy storage simulation power is fed back to the frequency modulation module; The judging whether the first energy storage analog power meets the frequency modulation requirement comprises the following steps: judging whether the total power of the second energy storage analog power is the same as the energy storage regulation active power or not; And when the total power of the second energy storage analog power is the same as the energy storage regulation active power, determining that the coordination controller meets the secondary regulation requirement.
4. The method of claim 1, wherein the frequency modulation requirement comprises an active distribution requirement, the energy storage simulation module comprises a plurality of energy storage simulation units, and the first energy storage simulation power is a plurality of energy storage simulation powers; the step of generating a first active power adjustment instruction according to the stored energy adjustment active power includes: Generating a plurality of first active power adjustment instructions according to the energy storage adjustment active power and a preset active distribution mode, wherein one energy storage simulation unit corresponds to one first active power adjustment instruction; The sending the first active power adjustment instruction to the energy storage simulation module includes: the corresponding first active adjustment instructions are sent to the energy storage simulation units, the first active adjustment instructions are used for indicating the corresponding energy storage simulation units to simulate the operation of the energy storage station according to the active adjustment instructions distributed by the preset active distribution mode and the preset operation parameters, the first energy storage simulation power is obtained, and the first energy storage simulation power is fed back to the frequency modulation module; The judging whether the first energy storage analog power meets the frequency modulation requirement comprises the following steps: Judging whether the distribution mode of each first energy storage analog power meets the active distribution requirement corresponding to the preset active distribution mode.
5. The method of claim 1, wherein the tuning demand comprises an active tuning command lockout demand, and the preset operating parameter comprises a state of charge, SOC, of an energy storage simulation unit in the energy storage simulation module; the step of generating a first active power adjustment instruction according to the stored energy adjustment active power includes: adjusting the SOC of a target energy storage simulation unit in the energy storage simulation module to be larger than a preset SOC upper limit or adjusting the SOC of the target energy storage simulation unit to be smaller than a preset SOC lower limit; according to the energy storage adjusting active power and the SOC of the target energy storage simulation unit, generating the first active adjusting instruction; The judging whether the first energy storage analog power meets the frequency modulation requirement comprises the following steps: Judging whether the target energy storage simulation power fed back by the target energy storage simulation unit is zero or not; And when the target energy storage simulation power is zero, determining that the coordination controller meets the active regulation instruction locking requirement.
6. The method of claim 1, wherein the frequency modulation requirement comprises an automatic power generation control, AGC, advanced coordination requirement; the step of generating a first active power adjustment instruction according to the stored energy adjustment active power includes: Generating a first active power adjusting instruction according to the energy storage adjusting active power and the first AGC active adjusting instruction of an AGC system; Before the determining whether the first energy storage analog power meets the frequency modulation requirement, the method further includes: adjusting the first AGC active adjusting instruction to obtain a second AGC active adjusting instruction with the same adjusting direction as the first AGC active adjusting instruction; generating a third active power adjustment instruction according to the energy storage adjustment active power and the second AGC active power adjustment instruction; The third active adjusting instruction is sent to the energy storage simulation module, and is used for indicating the energy storage simulation module to simulate the operation of the energy storage station according to the third active adjusting instruction and the preset operation parameter, so as to obtain third energy storage simulation power, and the third energy storage simulation power is fed back to the frequency modulation module; The judging whether the first energy storage analog power meets the frequency modulation requirement comprises the following steps: judging whether a second power difference between the total power of the third energy storage simulation power and the total power of the first energy storage simulation power is the same as a third power difference between the second active power adjustment instruction and the first active power adjustment instruction; When the second power difference is the same as the third power difference, determining that the coordination controller meets the AGC advanced coordination requirement; And when the second power difference is different from the third power difference, determining that the coordination controller does not meet the AGC advanced coordination requirement.
7. The method of claim 6, wherein said adjusting said first AGC active adjustment command to obtain a second AGC active adjustment command having a same adjustment direction as said first AGC active adjustment command comprises: Adjusting the first AGC active adjusting instruction to obtain a second AGC active adjusting instruction with the adjusting direction opposite to that of the first AGC active adjusting instruction; the determining whether a second power difference between the total power of the third energy storage analog power and the total power of the first energy storage analog power and a third power difference between the second active power adjustment command and the first active power adjustment command are the same includes: Judging whether a fourth power difference between the total power of the third energy storage analog power and the total power of the first energy storage analog power is zero or not; when the fourth power difference is zero, determining that the coordination controller meets the AGC advanced coordination requirement; and when the fourth power difference is not zero, determining that the coordination controller does not meet the AGC advanced coordination requirement.
8. The method of claim 1, wherein the step of generating a first active power adjustment command based on the stored energy adjustment active power comprises: And generating the first active adjusting instruction according to any one of a preset limiting coefficient, a preset static loss compensation, a preset charging compensation coefficient, a preset discharging compensation coefficient, a preset slip locking threshold, a preset large frequency difference lower limit threshold and a preset large frequency difference upper limit threshold and the energy storage adjusting active power.
9. A coordination controller comprising an energy storage simulation module of an energy storage station for simulating operation of the energy storage station and a frequency modulation module for performing the method of any of claims 1-8.
10. A computer readable storage medium, characterized in that it has stored thereon a computer program, which is loaded by a processor to perform the steps in the method of any of claims 1-8.

Description

Frequency modulation test method, coordination controller and storage medium Technical Field The application relates to the technical field of new energy power generation, in particular to a frequency modulation test method, a coordination controller and a storage medium. Background In the new energy power generation system, the frequency modulation function of the coordination controller is an important guarantee for ensuring the stability of the frequency of the power grid. In the related art, the energy storage, variable flow and boosting integrated machine for testing the frequency modulation function of the coordination controller and the testing equipment such as a battery compartment are huge in size and complex in system, so that the testing difficulty of the frequency modulation function of the coordination controller is high. Disclosure of Invention The application aims to provide a frequency modulation test method, a coordination controller and a storage medium, which aim to at least partially solve the technical problems. In a first aspect, a frequency modulation test method is provided, applied to a coordination controller, where the coordination controller includes an energy storage analog module and a frequency modulation module of an energy storage station, and the method includes: the frequency modulation module is used for adjusting dead zone and difference modulation coefficient according to the received power grid frequency and preset frequency, and determining energy storage and adjusting active power; The frequency modulation module adjusts active power according to the stored energy to generate a first active adjusting instruction; The frequency modulation module sends a first active adjustment instruction to the energy storage simulation module, wherein the first active adjustment instruction is used for indicating the energy storage simulation module to simulate the operation of the energy storage station according to the first active adjustment instruction and preset operation parameters, so as to obtain first energy storage simulation power, and the first energy storage simulation power is fed back to the frequency modulation module; the frequency modulation module judges whether the first energy storage analog power meets the frequency modulation requirement. In some of these designs, the frequency modulation requirement includes a command response speed requirement, and the coordination controller further includes a command detection module; after generating the first active power adjustment command, the method further comprises: transmitting a first active adjustment instruction to an instruction detection module; Judging whether the time length between the acquisition time of the power grid frequency and the output time of the first active regulation command is smaller than a preset time length, wherein the output time is the time when the command detection module outputs the first active regulation command; when the time length between the acquisition time and the output time is smaller than the preset time length, determining that the command response speed of the coordination controller meets the command response speed requirement. In some of these designs, the frequency modulation requirement includes a secondary adjustment requirement; Before judging whether the first energy storage analog power meets the frequency modulation requirement, the method further comprises the following steps: When the first power difference between the total power of the energy storage adjusting active power and the total power of the first energy storage analog power is larger than a preset threshold value, generating a second active power adjusting instruction according to the first power difference; the energy storage simulation module is used for receiving a second active adjustment instruction from the energy storage simulation module, and sending the second active adjustment instruction to the energy storage simulation module; Judging whether the first energy storage analog power meets the frequency modulation requirement or not, comprising: judging whether the total power of the second energy storage analog power is the same as the energy storage regulation active power or not; and when the total power of the second energy storage analog power is the same as the energy storage regulation active power, determining that the coordination controller meets the secondary regulation requirement. In some of these designs, the frequency modulation requirement includes an active power distribution requirement, and the energy storage simulation module includes a plurality of energy storage simulation units, where the number of the first energy storage simulation powers is a plurality; and adjusting the active power according to the stored energy, generating a first active adjustment instruction, comprising: Generating a plurality of first active power adjustment instructions according to the energ