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Power system standby optimization method and system considering multiple fault scenes

A technology of power system and optimization method, applied in the direction of system integration technology, design optimization/simulation, information technology support system, etc., can solve problems such as inaccurate optimization results, memory exhaustion, large time and storage space occupation, and improve The effect of engineering application value, comprehensive simulation operation, and reliable optimization results

Active Publication Date: 2021-04-02
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This optimization result is not accurate. At the same time, when the number of scenes is large, the direct solution may lead to memory exhaustion, taking up a lot of time and storage space

Method used

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  • Power system standby optimization method and system considering multiple fault scenes
  • Power system standby optimization method and system considering multiple fault scenes
  • Power system standby optimization method and system considering multiple fault scenes

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Experimental program
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Embodiment 1

[0029] In one or more embodiments, a power system backup optimization method considering multiple fault scenarios is disclosed, such as figure 1 shown, including the following process:

[0030] Step S101: Divide several independent failure scenarios according to the load forecast data and equipment operation failure rate statistics data within the scheduling day;

[0031] Specifically, in the process of constructing a power system robust stochastic backup optimization model considering multiple fault scenarios and the uncertainty of fault probability, according to the load forecast data within the power grid dispatching time limit and the statistical data of equipment operation failure rates (generating units, transmission lines etc.), the fault scenarios are divided into Ω, and each scenario is independent of each other.

[0032] It should be noted that the division of the number and types of failure scenarios is not unique, and those skilled in the art can make specific sel...

Embodiment 2

[0179] In one or more embodiments, a power system backup optimization system considering multiple fault scenarios is disclosed, such as figure 2 shown, including:

[0180] The failure scenario division module is used to divide several independent failure scenarios according to the load forecast data and equipment operation failure rate statistics data in the scheduling day;

[0181] The standby optimization model building block takes the minimum total cost as the optimization goal, and considers the constraints of the unit, network and fault scenarios to build a robust standby optimization model for the power system;

[0182] The backup optimization model solving module is used to solve the robust backup optimization model of the power system to obtain a backup optimization scheme of the power system.

[0183] It should be noted that the specific implementation manners of the above modules have been described in detail in Embodiment 1, and will not be repeated here.

Embodiment 3

[0185] In one or more embodiments, a terminal device is disclosed, including a server, the server includes a memory, a processor, and a computer program stored on the memory and operable on the processor, and the processor executes the The program implements the power system backup optimization method considering multiple fault scenarios in the first embodiment. For the sake of brevity, details are not repeated here.

[0186] It should be understood that in this embodiment, the processor can be a central processing unit CPU, and the processor can also be other general-purpose processors, digital signal processors DSP, application specific integrated circuits ASIC, off-the-shelf programmable gate array FPGA or other programmable logic devices , discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like.

[0187] The memory may include read-on...

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Abstract

The invention discloses a power system standby optimization method and system considering multiple fault scenes, and the method comprises the steps of dividing a plurality of independent fault scenesaccording to the load prediction data and equipment operation fault rate statistical data in a dispatching day; constructing a robust standby optimization model of the power system by taking minimum total cost as an optimization target and considering constraint conditions of a unit, a network and a fault scene; and solving the robust standby optimization model of the power system to obtain a standby optimization scheme of the power system. According to the invention, a power system robust random standby optimization model considering multiple fault scenes and fault probability uncertainty isconstructed. According to the invention, the system reserve capacity can be optimized under the condition of considering multiple fault scenes and uncertainty of the multiple fault scenes, a robust optimization uncertainty description method is adopted, simulation operation is more comprehensive, an optimization result is more reliable and comprehensive, and the engineering application value of power system reserve configuration is improved.

Description

technical field [0001] The invention relates to the technical field of power system dispatching, in particular to a power system backup optimization method and system considering multiple fault scenarios. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] Reserve decision-making is one of the basic contents of power system dispatching. Reliable and economical reserve capacity allocation can not only ensure the safe operation of the system, but also reduce dispatch costs for power companies, which meets the development needs of the power market. The backup is mainly to deal with the uncertainty caused by renewable energy output, load fluctuation and equipment failure in the power system. The main goal of reserve optimization is to optimize the allocation of reserve capacity of the system within the corresponding time scale based on the foreca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06Q10/04G06Q50/06H02J3/00G06F111/04G06F111/08
CPCG06F30/20G06Q10/04G06Q50/06H02J3/00G06F2111/04G06F2111/08H02J2203/20Y02E40/70
Inventor 王明强杨明王孟夏王成福王勇董晓明
Owner SHANDONG UNIV
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