Safety and stability control method and system of power system based on strategy flexible configuration

A technology for safe and stable control and power systems, applied to electrical components, emergency protection circuit devices, etc.

Pending Publication Date: 2021-05-18
CHINA ELECTRIC POWER RES INST +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The present invention proposes a security and stability control method and system for a power system based on fl

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  • Safety and stability control method and system of power system based on strategy flexible configuration
  • Safety and stability control method and system of power system based on strategy flexible configuration
  • Safety and stability control method and system of power system based on strategy flexible configuration

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Embodiment Construction

[0068] Exemplary embodiments of the present invention will now be described with reference to the drawings; however, the present invention may be embodied in many different forms and are not limited to the embodiments described herein, which are provided for the purpose of exhaustively and completely disclosing the present invention. invention and fully convey the scope of the invention to those skilled in the art. The terms used in the exemplary embodiments shown in the drawings do not limit the present invention. In the figures, the same units / elements are given the same reference numerals.

[0069] Unless otherwise specified, the terms (including scientific and technical terms) used herein have the commonly understood meanings to those skilled in the art. In addition, it can be understood that terms defined by commonly used dictionaries should be understood to have consistent meanings in the context of their related fields, and should not be understood as idealized or over...

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Abstract

The invention discloses a safety and stability control method and system for a power system based on strategy flexible configuration, and the method comprises the steps: carrying out the normalization processing of an existing safety control strategy and a system configuration scheme, obtaining different types of normalized fixed value tables, carrying out the logic configuration of the safety control strategy of each element based on the normalized fixed value tables, and carrying out the logic configuration of the safety control strategy of each element; generating a software program executable by the device; judging whether a target element is in an operation state or not based on an element operation criterion by utilizing the software program; when it is determined that the target element is in the operation state, judging whether the safety control device enters a starting state based on element protection starting criteria, and meanwhile judging whether the target source element is in an overload state or not based on element overload criteria; when it is determined that the safety control device corresponding to the target element enters the starting state, determining whether the target element is in a tripping state or not based on an element tripping criterion; and when it is determined that the target element is in the tripping state or the overload state, performing protection action.

Description

technical field [0001] The present invention relates to the technical field of power system protection and control, and more specifically, to a security and stability control method and system for a power system based on flexible configuration of policies. Background technique [0002] As the second line of defense of the power system, the power system safety and stability control system (hereinafter referred to as the stability control system) plays an extremely important role in the safe and reliable operation of the power system. [0003] The stability control system is a control device installed in the power plant or substation to ensure the stability of the power system when it encounters a large disturbance, and realizes the functions of cutting off the generator, cutting off the load, quickly reducing the output, and urgently increasing or falling back the DC power. . In terms of system composition, the stability control system is a system composed of two or more pow...

Claims

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Application Information

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IPC IPC(8): H02H7/26
CPCH02H7/26
Inventor 李天华杜丁香刘一民王兴国曹虹陈军程琪朱晓红郭雅蓉王书扬陈争光李彬
Owner CHINA ELECTRIC POWER RES INST
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