GIS (Gas Insulated Switchgear) shell circulating current and transient grounding potential rise (TGPR) modeling and analysis method based on PEEC method

A transient ground potential and analysis method technology, applied in the direction of AC network circuits, electrical components, circuit devices, etc., can solve the problems of electromagnetic interference of measuring equipment, system malfunction, etc., and achieve the suppression of shell circulation, suppression of TGPR, and simple process Effect

Inactive Publication Date: 2018-03-27
STATE GRID SHANDONG ELECTRIC POWER +1
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Problems solved by technology

[0003] In addition, because the transient circulating current generated in GIS has high-frequency and ultra-high-frequency components, and the layout of GIS cannot be consistent with the distance from the ground current injection point, it will cause the TGPR (Transient Grou

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  • GIS (Gas Insulated Switchgear) shell circulating current and transient grounding potential rise (TGPR) modeling and analysis method based on PEEC method
  • GIS (Gas Insulated Switchgear) shell circulating current and transient grounding potential rise (TGPR) modeling and analysis method based on PEEC method
  • GIS (Gas Insulated Switchgear) shell circulating current and transient grounding potential rise (TGPR) modeling and analysis method based on PEEC method

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[0033] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0034] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0035] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinatio...

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Abstract

The invention discloses a GIS (Gas Insulated Switchgear) shell circulating current and transient grounding potential rise (TGPR) modeling and analysis method based on a PEEC method. On the basis of the circulating current and transient grounding potential rise generation mechanism in the GIS system, the PEEC method is adopted to build a GIB busbar and shell model, an equivalent model is further built for simulation, the relation curve between amplitude of GIS inter-phase circulating current and grounding grid circulating current and a grounding point is obtained, and according to the relationcurve, influence factors for the shell circulating current and the TGPR are determined. Power grid protection and control adjustment are facilitated.

Description

technical field [0001] The invention relates to a method for modeling and analyzing GIS shell circulation and transient ground potential rise based on the PEEC method. Background technique [0002] In recent years, Gas Insulated Switchgear (GIS) has become an indispensable part of the power system due to its remarkable advantages such as compact structure, small size, small footprint, reliable operation, light maintenance tasks and less environmental pollution. . However, the distance between the components of the GIS system is relatively close, and the electromagnetic coupling between the components is strong. When the disconnector, circuit breaker, etc. are opened and closed, there will be a fast transient process in the GIS. The transient wave generated in GIS has the characteristics of short delay and high frequency. The rise time of these transient waves is nanoseconds, and the frequency can reach hundreds of megahertz. Through electromagnetic induction, it appears as ...

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Application Information

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IPC IPC(8): H02J3/00G06F17/50
CPCG06F30/367H02J3/00H02J2203/20Y02E60/00
Inventor 刘兴华吕学宾于芃裴英孙学锋王涛宁尚元王世坤杨磊李思毛巩方伟李鑫郑春旭陈文栋魏建莉王军陈泰羽
Owner STATE GRID SHANDONG ELECTRIC POWER
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