CN-121998336-A - Water balance regulating and controlling method and device for power plant, electronic equipment and storage medium

CN121998336ACN 121998336 ACN121998336 ACN 121998336ACN-121998336-A

Abstract

The application relates to a water balance regulating and controlling method, a device, electronic equipment and a storage medium of a power plant, wherein the method comprises the steps of inputting multisource operation data of a current power plant water system into a preset time sequence prediction model, outputting a water quantity prediction result, and obtaining a target control strategy meeting preset constraint conditions according to the current unit operation state and the water quantity prediction result based on a preset multi-target optimization algorithm; the method comprises the steps of inputting current wastewater quality and water quantity information into a preset wastewater scheduling model to carry out wastewater utilization planning to generate a target wastewater utilization strategy, generating a target control instruction according to the target control strategy and the target wastewater utilization strategy, and issuing the target control instruction to an executing mechanism to control the executing mechanism to carry out corresponding adjustment actions based on the target control instruction. Therefore, the static, isolated and rough defects of water system management of the existing coal-fired power plant are overcome, so that the unit power generation water intake is obviously reduced, the comprehensive utilization efficiency of water resources is improved, and the system is suitable for complex operation conditions such as deep peak shaving and the like.

Inventors

ZHU HONG
LIANG YUCHEN
WEI FEI
WANG MIN
WANG TE
ZHOU XIANG
WANG MENGQIN
WANG XINPEI
SHE XIAOLI
ZHANG DANTONG

Assignees

国电环境保护研究院有限公司

Dates

Publication Date: 20260508
Application Date: 20260122

Claims (10)

1. The water balance regulating and controlling method for the power plant is characterized by comprising the following steps of: Acquiring the current unit running state of a current power plant, current wastewater quality and water quantity information and multi-source running data of a water system; inputting the multi-source operation data into a preset time sequence prediction model, outputting a water quantity prediction result through the preset time sequence prediction model, and obtaining a target control strategy meeting preset constraint conditions according to the current unit operation state and the water quantity prediction result based on a preset multi-target optimization algorithm; Inputting the current wastewater quality and quantity information into a preset wastewater scheduling model, and performing wastewater utilization planning through the preset wastewater scheduling model to generate a target wastewater utilization strategy; Generating a target control instruction according to the target control strategy and the target wastewater utilization strategy, and issuing the target control instruction to an executing mechanism to control the executing mechanism to perform corresponding adjusting action based on the target control instruction.
2. The method according to claim 1, wherein the objective function of the preset multi-objective optimization algorithm is: F(X)=W 1 f 1 +W 2 f 2 +W 3 f 3 ; f1=Q fresh /P; ; ; Wherein F (X) is an objective function, F 1 is the unit power generation water intake quantity, F 2 is the auxiliary power consumption of the water system, F 3 is the pollution load of discharged wastewater, Q fresh is the fresh water intake quantity, P is the unit power generation quantity, For the power of the ith pump, Is the water density of the water, the water is in a water-tight state, The acceleration of the gravity is that, For the i-th pump flow rate, Is the lift of the ith pump, For the efficiency of the ith pump, For the purpose of motor efficiency, For the j-th path of the discharged waste water flow, W 1 、W 2 、W 3 is the weight coefficient for the concentration of the nth pollutant in the jth path of wastewater.
3. The method according to claim 1, wherein the scheduling objective function of the preset wastewater scheduling model is: ; wherein Q i,j is the water delivery from the water source i to the water consumption point j, L i,j is the water delivery distance from the water source i to the water consumption point j, lambda is the unit distance energy consumption coefficient, beta is the recycling rate weight, and sigma Q source,i is the total wastewater amount.
4. The method of claim 1, further comprising, after obtaining current unit operation status of the current power plant, current wastewater quality and quantity information, and multi-source operation data of the water system: monitoring the running state of the water system; Generating early warning reminding information under the condition that the running state of the water system meets the preset risk condition, and carrying out risk early warning reminding based on a preset digital twin platform; the early warning reminding information comprises at least one of fault positioning information and risk processing strategies.
5. The method of claim 1, further comprising, prior to inputting the multi-source operational data into a pre-set time sequence prediction model: cleaning the multi-source operation data to obtain cleaned multi-source operation data; performing outlier rejection processing on the cleaned multi-source operation data to obtain processed multi-source operation data; And carrying out standardized conversion processing on the processed multi-source operation data, and storing the standardized operation data into a preset time sequence database.
6. The method of claim 1, wherein the multi-source operating data comprises at least one of flow rate, pressure, temperature, pH, conductivity, turbidity, hardness, and chloride ion content, and the water yield prediction comprises at least one of a water demand prediction, a water yield prediction, and a reusable water yield prediction.
7. A water balance regulation and control device of a power plant, comprising: The acquisition module is used for acquiring the current unit running state of the current power plant, the current wastewater quality and water quantity information and the multi-source running data of the water system; The processing module is used for inputting the multi-source operation data into a preset time sequence prediction model, outputting a water quantity prediction result through the preset time sequence prediction model, and obtaining a target control strategy meeting preset constraint conditions according to the current unit operation state and the water quantity prediction result based on a preset multi-target optimization algorithm; The wastewater scheduling module is used for inputting the current wastewater quality and water quantity information into a preset wastewater scheduling model, and performing wastewater utilization planning through the preset wastewater scheduling model to generate a target wastewater utilization strategy; And the regulation and control module is used for generating a target control instruction according to the target control strategy and the target wastewater utilization strategy, and issuing the target control instruction to an execution mechanism so as to control the execution mechanism to perform corresponding regulation action based on the target control instruction.
8. The apparatus of claim 7, wherein the objective function of the preset multi-objective optimization algorithm is: F(X)=W 1 f 1 +W 2 f 2 +W 3 f 3 ; f1=Q fresh /P; ; ; Wherein F (X) is an objective function, F 1 is the unit power generation water intake quantity, F 2 is auxiliary power consumption, F 3 is the pollution load of discharged wastewater, Q fresh is the fresh water intake quantity, P is the unit power generation quantity, For the power of the ith pump, Is the water density of the water, the water is in a water-tight state, The acceleration of the gravity is that, For the i-th pump flow rate, Is the lift of the ith pump, For the efficiency of the ith pump, For the purpose of motor efficiency, For the j-th path of the discharged waste water flow, W 1 、W 2 、W 3 is the weight coefficient for the concentration of the nth pollutant in the jth path of wastewater.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and capable of running on the processor, the processor executing the computer program to implement the water balance control method of a power plant as claimed in any one of claims 1 to 6.
10. A computer readable storage medium having stored thereon a computer program, the computer program being executed by a processor for implementing a water balance control method of a power plant according to any of claims 1-6.

Description

Water balance regulating and controlling method and device for power plant, electronic equipment and storage medium Technical Field The application relates to the technical field of intelligent power plants, in particular to a water balance regulating and controlling method and device for a power plant, electronic equipment and a storage medium. Background The coal-fired power plant is used as a large household of industrial water, and the water system has a complex structure and covers a plurality of subsystems such as raw water pretreatment, boiler makeup water, circulating cooling water, industrial wastewater, desulfurization wastewater and the like. At present, the management of water balance of the whole factory in the industry mainly depends on manual experience and periodic water balance test, and obvious problems of static state, island formation and rough placement exist. The traditional method cannot respond to the dynamic changes of unit load, ambient temperature and water quality fluctuation in real time, and each water subsystem often operates independently, and lacks a global cooperative scheduling and optimizing mechanism, so that the water resource multiplexing rate is low, and the fresh water consumption is high. Meanwhile, the existing water-saving measures focus on a single water-saving target, neglect the coupling relation with multiple targets such as system energy consumption, equipment safety, environmental protection emission and the like, and are difficult to realize the optimal balance of economic benefit and environmental benefit, so that the problem needs to be solved. Disclosure of Invention The application provides a water balance regulating and controlling method, a device, electronic equipment and a storage medium for a power plant, which are used for overcoming the static, isolated and rough defects of water system management of the existing coal-fired power plant, thereby remarkably reducing the water intake of unit power generation, improving the comprehensive utilization efficiency of water resources and adapting to complex operation conditions such as deep peak shaving and the like. An embodiment of a first aspect of the present application provides a water balance control method for a power plant, which is characterized by comprising the following steps: Acquiring the current unit running state of a current power plant, current wastewater quality and water quantity information and multi-source running data of a water system; inputting the multi-source operation data into a preset time sequence prediction model, outputting a water quantity prediction result through the preset time sequence prediction model, and obtaining a target control strategy meeting preset constraint conditions according to the current unit operation state and the water quantity prediction result based on a preset multi-target optimization algorithm; Inputting the current wastewater quality and quantity information into a preset wastewater scheduling model, and performing wastewater utilization planning through the preset wastewater scheduling model to generate a target wastewater utilization strategy; Generating a target control instruction according to the target control strategy and the target wastewater utilization strategy, and issuing the target control instruction to an executing mechanism to control the executing mechanism to perform corresponding adjusting action based on the target control instruction. According to an embodiment of the present application, the objective function of the preset multi-objective optimization algorithm is: F(X)=W1f1+W2f2+W3f3; f1=Qfresh/P; ; ; Wherein F (X) is an objective function, F 1 is the unit power generation water intake quantity, F 2 is the auxiliary power consumption of the water system, F 3 is the pollution load of discharged wastewater, Q fresh is the fresh water intake quantity, P is the unit power generation quantity, For the power of the ith pump,Is the water density of the water, the water is in a water-tight state,The acceleration of the gravity is that,For the i-th pump flow rate,Is the lift of the ith pump,For the efficiency of the ith pump,For the purpose of motor efficiency,For the j-th path of the discharged waste water flow,W 1、W2、W3 is the weight coefficient for the concentration of the nth pollutant in the jth path of wastewater. According to an embodiment of the present application, the scheduling objective function of the preset wastewater scheduling model is: ; wherein Q i,j is the water delivery from the water source i to the water consumption point j, L i,j is the water delivery distance from the water source i to the water consumption point j, lambda is the unit distance energy consumption coefficient, beta is the recycling rate weight, and sigma Q source,i is the total wastewater amount. According to one embodiment of the present application, after acquiring the current unit operation state of the current power plant, the current