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Decision-making method, device and system for optimal power generation control based on coordination between two time points

A technology for power generation control, coordination and optimization, applied in the direction of single-grid parallel feeding arrangement, etc., can solve the problems of complex safety and stability characteristics, increase of random factors, and insufficient flexible adjustment of power supply, etc., to meet decision-making accuracy, ensure real-time performance, and overcome calculation. huge amount of effect

Active Publication Date: 2022-08-02
NARI TECH CO LTD +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the actual needs of the large increase of random factors in the operation of modern power grids, the lack of flexible regulation of power supplies, and the complexity of security and stability characteristics, the present invention proposes a decision-making method, device and system based on two time points to coordinate and optimize power generation control, based on the existing The single-time-point real-time power generation control optimization decision-making method uses the weighted optimization of the objective function value of the real-time power generation control independent optimization decision-making at two adjacent control time points as the overall goal of the two-time-point coordinated optimization decision-making, and implements the previous time point on a rolling basis. The real-time power generation control optimization decision can avoid the defect that the real-time power generation control optimization decision at a single time point cannot take into account the defects of the subsequent time point real-time power generation control optimization decision, and realize the prediction correction and rolling optimization of real-time power generation control

Method used

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  • Decision-making method, device and system for optimal power generation control based on coordination between two time points
  • Decision-making method, device and system for optimal power generation control based on coordination between two time points
  • Decision-making method, device and system for optimal power generation control based on coordination between two time points

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Embodiment 1

[0052] The embodiment of the present invention provides a decision-making method for coordinating and optimizing power generation control based on two time points, where the current operating time of the power grid is set as t 0 , the current operating state of the grid is S 0 , the real-time power generation control period is T, and the set of power plants that perform real-time power generation control according to the optimization decision of the control center is A;

[0053] like figure 1 As shown, the method specifically includes the following steps:

[0054] S1, obtain the active power injected into the power grid by each power plant, load, AC side node of the DC system and external liaison nodes in the power grid under the jurisdiction of the control center to the power transmission equipment and the active power of the stable section that the control center is responsible for overload monitoring; In the embodiment of the present invention In a specific embodiment, th...

Embodiment 2

[0096] Based on the same inventive concept as Embodiment 1, an embodiment of the present invention provides a decision-making device for coordinating and optimizing power generation control based on two time points, including:

[0097] Diversity module to obtain t 0 The initial value of the active power control command of each power plant at time A at +T, t 0 The initial value of the active power control command of each power plant in A at time +2T and the corresponding active power control command optimization decision-making equation, the set of power plants that meet the requirements of active power regulation speed is recorded as B, and the power plant t in B is denoted as B. 0 +T time, t 0 The initial value of the active power control command at time +2T is taken as the corresponding power plant t 0 +T time, t 0 The final value of the active power control command at time +2T, the set of power plants in A except the power plants in B is denoted as C; where, t 0 Represe...

Embodiment 3

[0104] Based on the same inventive concept as Embodiment 1, an embodiment of the present invention provides a decision-making system for coordinating and optimizing power generation control based on two time points, including:

[0105] a processor adapted to implement the instructions; and

[0106] The storage device is adapted to store a plurality of instructions, the instructions are adapted to be loaded by the processor and perform the steps described in any one of Embodiment 1.

[0107] As will be appreciated by those skilled in the art, the embodiments of the present application may be provided as a method, a system, or a computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (includi...

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Abstract

The invention discloses a decision-making method, device and system for coordinating and optimizing power generation control based on two time points. According to the active power adjustment speed of the power plant, the adjustable space of the power plant at two adjacent time points is automatically adjusted. Carry out two time-point active power combinations of different power plants, adopt parallel verification, and select two time-point real-time power generation control independent optimization decisions from the active power combinations of power plants that satisfy all constraints of real-time power generation control optimization decisions at two time points at the same time The active power combination of the power plant with the optimal weighted objective function value, as the result of the coordinated optimization decision at two time points of the real-time power generation control, realizes the prediction correction and rolling optimization under the sharp increase of the random factors of the power grid operation, and improves the decision-making accuracy of the real-time power generation control.

Description

technical field [0001] The invention belongs to the technical field of grid dispatching operation and control, and in particular relates to a decision-making method, device and system for coordinating and optimizing power generation control based on two time points. Background technique [0002] The load of the power system and the power generation capacity of wind and solar energy are random and fluctuating. In order to ensure the safe, reliable, cost-effective, low-carbon, environmental-friendly and high-quality operation of the power grid, real-time power generation control has become a key link in the automation of power system dispatching. The existing real-time power generation control optimization decision is made at a single point in time at the current moment of the power grid or at a certain moment in the future taking into account the control cycle. The real-time power generation control optimization decision for a certain moment in the future of the grid and cont...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/48
Inventor 徐泰山范越汪马翔薛峰王昊昊董凌陈堂龙李吉晨张昊天李延和
Owner NARI TECH CO LTD