Power system transient stability assessment method and device, electronic equipment and storage medium

A transient stability assessment, power system technology, applied in circuit devices, electrical components, AC network circuits, etc., can solve problems such as single task, unpredictable fault prediction, etc., to achieve the effect of enhanced utilization

Pending Publication Date: 2021-10-08
TSINGHUA UNIV
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Problems solved by technology

[0004] The present invention provides a power system transient stability evaluation method, device, electronic equipment and storage medium to solve the problems in the prior art that it is impossible to predict each expected failure in the expected failure concentration and can only complete a single task

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  • Power system transient stability assessment method and device, electronic equipment and storage medium
  • Power system transient stability assessment method and device, electronic equipment and storage medium
  • Power system transient stability assessment method and device, electronic equipment and storage medium

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Embodiment Construction

[0043]In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are part of the embodiments of the present invention , but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0044] Machine learning methods such as data mining theory, multi-support vector machines, and tree models used in the prior art are single-input and single-output modeling methods. After a single power flow is given, it is impossible to perform a comprehensive analysis of each expected fault in the expected fault set. Forecasting, and the existing transient stability assessment model based on...

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Abstract

The invention provides a transient stability evaluation method and device for a power system, electronic equipment and a storage medium. The method comprises the following steps: acquiring power flow information and topological information of the power system; determining a power system power flow characteristic graph according to the power system power flow information and the power system topology information; inputting node features and topological features of the power flow feature graph of the power system into a transient stability evaluation model to obtain transient stability and transient stability indexes of the power system after each anticipated fault in an anticipated fault set output by the transient stability evaluation model occurs; wherein the transient stability evaluation model is used for carrying out feature learning on the power flow feature map of the power system and carrying out coupling analysis on the transient stability and transient stability indexes of the power system. According to the method, the device, the electronic equipment and the storage medium provided by the invention, the transient stability and the transient stability index of the power system can be quickly evaluated and predicted after each anticipated fault in the anticipated fault set occurs.

Description

technical field [0001] The present invention relates to the field of power systems, in particular to a power system transient stability evaluation method, device, electronic equipment and storage medium. Background technique [0002] When the power system is running, under the excitation of the power supply potential, the current or power flows from the power supply to the load through each component of the system, and is distributed throughout the power grid, which is called power flow. In the analysis and calculation of power system operation mode, for a set power system power flow, it is necessary to conduct transient stability evaluation based on a given expected fault set, so as to verify the operation safety of the power flow; due to the power system N -1 safety criterion, the expected fault set is generally a typical N-1 fault, and this process is N-1 check of power flow transient stability. [0003] In the process of N-1 verification, it involves multiple transient ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/06G06Q50/06
CPCH02J3/06G06Q50/06H02J2203/10H02J2203/20
Inventor 陈颖关慧哲肖谭南黄少伟沈沉
Owner TSINGHUA UNIV
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