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Decision-making method, device and system based on two time point coordinated and optimized power generation control

A technology of power generation control and coordination optimization, applied in the direction of single-network parallel feeding arrangement, etc., can solve problems such as complex safety and stability characteristics, increase of random factors, and insufficient flexible adjustment of power supply

Active Publication Date: 2019-06-04
NARI TECH CO LTD +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 based on two time point coordinated and optimized power generation control

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Embodiment 1

[0052] The embodiment of the present invention provides a decision-making method based on coordinated optimization of power generation control at two time points, assuming that the current operating time of the power grid is t 0 , the current operating state of the power 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 sensitivity of the active power injected into the grid by each power plant, load, DC system AC side node and external contact node in the power grid under the jurisdiction of the control center to the power transmission equipment and stable section active power that the control center is responsible for monitoring; in the embodiment of the present invention In a specific implementation manner, ...

Embodiment 2

[0096] Based on the same inventive concept as in Embodiment 1, the 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 for obtaining t 0 The initial value of the active power control command of each power plant in time A at +T, t 0 The initial value of the active power control command of each power plant in A at +2T time and the corresponding active power control command optimization decision equation, the set of power plants that meet the active power regulation speed requirements is recorded as B, and the power plant t in B is 0 +T moment, t 0 The initial value of the active power control command at +2T is taken as the corresponding power plant t 0 +T moment, t 0 The final value of the active control command at +2T time, the set of power plants in A except the power plants in B is recorded as C; where, t 0 Indicates the current running...

Embodiment 3

[0104] Based on the same inventive concept as in Embodiment 1, the embodiment of the present invention provides a decision 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 suitable for storing a plurality of instructions, and the instructions are suitable for being loaded by the processor and executing the steps described in any one of Embodiment 1.

[0107] Those skilled in the art should understand that the embodiments of the present application may be provided as methods, systems, or computer program products. 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 (in...

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Abstract

The invention discloses a decision-making method, a decision-making device and a decision-making system based on two time point coordinated and optimized power generation control. The decision-makingmethod comprises the steps of automatically adjusting an adjustable space of two adjacent time points of a power plant according to an active power adjustment speed of the power plant, performing active combination of two time points of different power plants by means of the adjustable space in a discretized manner, adopting parallel checking, selecting a power plant active combination with the optimal two-time-point real-time power generation control independent optimization decision-making objective function value weighting, and regarding the power plant active combination as a real-time power generation control two-time-point coordinated and optimized decision-making result. Therefore, the predicted correction and rolling optimization under the rapid increase of grid operation random factors are realized, and the decision-making precision of real-time power generation control is improved.

Description

technical field [0001] The invention belongs to the technical field of power grid dispatching operation and control, and specifically 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 new energy are random and fluctuating. In order to ensure the safe, reliable, economical and efficient, low-carbon, environmentally 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. Existing real-time power generation control optimization decisions are made for the current moment of the power grid or a single time point in the future that takes into account the control cycle. The real-time power generation control optimization decision at a certain point in the future of the grid accounting and con...

Claims

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Application Information

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Patent Type & Authority Applications(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