Substation lightning overvoltage simulation analysis method and device, terminal and medium
A lightning overvoltage, simulation analysis technology, applied in design optimization/simulation, electrical digital data processing, special data processing applications, etc., can solve problems such as large differences, inaccurate analysis results, affecting the effectiveness of protective measures, etc. Accuracy and the effect of maintaining stability
Pending Publication Date: 2022-01-21
GUANGDONG POWER GRID CO LTD +1
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[0004] The purpose of the present invention is to provide a simulation analysis method, device, terminal equipment and readable storage medium for lightning overvoltage in substations, so as to solve the large difference between the parameters existing in the analysis of lightning overvoltage of electrical equipment in substations and the real situation in the prior art , leading to inaccurate analysis results, which in turn affects the effectiveness of protective measures
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[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. 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.
[0047] It should be understood that the step numbers used herein are only for convenience of description, and are not intended to limit the execution order of the steps.
[0048]It should be understood that the terminology used in the description of the present invention is for the purpose of describing particular embodiments only and is not intended to limit the present invention. As used in this specification and the appended claims, the singular forms "a", "an" ...
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The invention discloses a substation lightning overvoltage simulation analysis method and device, a terminal and a medium. The method comprises the steps of obtaining continuous lightning stroke lightning current parameter characteristics in historical lightning data, and building an electromagnetic transient simulation model of continuous lightning stroke lightning current; carrying out equivalence on a power transmission line, a substation and a power supply, and establishing an equivalent model of the electromagnetic transient simulation model of the continuous lightning stroke lightning current; building a substation lightning overvoltage simulation analysis model under the continuous lightning invasion waves according to the equivalent model; analyzing lightning overvoltage generated after the electrical equipment of the station is influenced by the continuous lightning intrusion waves under different continuous lightning current parameter characteristics; and determining the lightning impulse insulation level of the electrical equipment of the substation by using the maximum lightning overvoltage. According to the invention, the accuracy of an analysis result can be improved by researching the lightning overvoltage influence on the electrical equipment of the substation under the continuous lightning intrusion waves under different parameters, so that effective lightning protection measures can be established.
Description
technical field [0001] The invention relates to the field of substation lightning overvoltage analysis technology, in particular to a substation lightning overvoltage simulation analysis method, device, terminal and medium. Background technique [0002] As an important part of the power system, substations undertake the important tasks of transforming voltage, receiving and distributing electric energy, and their safe and stable operation has always been the focus of attention of power grid companies. Due to the high cost of electrical equipment in substations, and the insulation of most electrical equipment has no self-recovery ability, if damage is caused by lightning accidents, it will cause huge economic losses and affect the safe and stable operation of the power grid. Among them, the lightning damage accidents in substations mainly include two types, namely, lightning directly hitting the substation and lightning intrusion wave that invades the substation along the lin...
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Login to View More IPC IPC(8): G06F30/20G06F113/04
CPCG06F30/20G06F2113/04
Inventor 赵晓凤杨贤李谦李兴旺宋坤宇邰彬庞小峰郑晓光王增彬吴勇陈祖伟孙帅姚聪伟丘欢洪刚应丽云
Owner GUANGDONG POWER GRID CO LTD