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Method and device for checking strategy definite value of stability control system

A stable control system and strategy technology, applied in the direction of circuit devices, AC network circuits, electrical components, etc., to achieve the effect of improving reliability

Active Publication Date: 2019-09-20
STATE GRID LIAONING ELECTRIC POWER RES INST +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] The present invention proposes a method and device based on a stability control system strategy fixed value check to solve the problem of providing a real-time matching online security and stability control strategy

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  • Method and device for checking strategy definite value of stability control system
  • Method and device for checking strategy definite value of stability control system
  • Method and device for checking strategy definite value of stability control system

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Embodiment Construction

[0059] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0060] The method of the present invention is used to check and update the strategy fixed value of the on-site stability control device. On the basis of ensuring the normal operation of the communication channel and the stability control system, the parallel computing system at the dispatching end calculates the line betweenness B in the network topology. i , Line load rate L i and the sensitivity S of the line power difference relative to the power angle difference after the power flow change i , and then calculate the comprehensive vulnerability index V i , so as to determine the vulnerable lines due to power flow changes; according to the information sent by the on-site stability control system in real time, if the power flow level of the vulnerable lines exceeds the early warning index, the parallel computing system at the dispatching end will be t...

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Abstract

The invention discloses a method and a device for checking a strategy definite value of a stability control system. The method comprises the following steps: (1) judging whether a communication channel between a dispatching end and the stability control system is normal or not; (2) judging whether the stability control system operates normally or not, generating a stability control online definite value list according to normally operating data, and simultaneously calculating a comprehensive fragile degree index of the system, and determining a fragile circuit appearing due to tide change according to the comprehensive fragile degree index; (3) measuring uploading information in real time according to the site stability control system, and updating an online definite value strategy of the site stability control device in combination with a tide level of the fragile circuit in step (2); and (4) judging whether the stability control online definite value list generated in step (2) and the online definite value strategy updated in step (3) meet effectiveness checking or not, and determining whether an updating strategy command is transmitted to the stability control system or not. The reliability of the stability control system for using an online strategy definite value is improved, and technical support is provided for safe and stable operation of a power grid.

Description

technical field [0001] The invention belongs to the field of electric power system automation, and more specifically relates to a method and device for checking a strategy fixed value of a stability control system. Background technique [0002] The safety and stability control system is the second line of defense to ensure the safe and stable operation of the power grid. In a certain operation mode, control strategies are formulated for some expected faults. Therefore, an effective and reliable safety and stability control strategy is the core of the safety and stability control system, and it is also Guarantee of stable operation. [0003] The safety and stability control strategy includes four types of information: operation mode, failure mode, power flow mode and control measures, and forms a logical and easy-to-understand strategy table in a specific format, which is convenient for program developers to program. At present, the control strategies widely used at home and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00H02J13/00
CPCH02J3/00H02J13/00H02J2203/20Y02E60/00
Inventor 李铁唐俊刺姜枫苏安龙高鸿飞时伯年孙刚曾辉李典阳刘淼刘刚武力伦涛周纯莹许小鹏赵军句荣滨王洪哲孙文涛詹克明王淼杨晓明王钟辉高梓济韩秋李学斌金鹏许睿超
Owner STATE GRID LIAONING ELECTRIC POWER RES INST
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