Power supply grounding fault troubleshooting device and method for wind turbine generator

A technology for grounding wind turbines and power supplies, which is used in power supply testing, short-circuit testing, etc. to reduce the scope of troubleshooting, reduce maintenance difficulty, and improve accuracy.

Pending Publication Date: 2021-12-17
华能四平风力发电有限公司 +2
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  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the present application provides a device and method for troubleshooting the ground fault of the power supply of the wind turbine to solve the technical problem of how to effectively troubleshoot the ground fault of the power supply of the wind turbine

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  • Power supply grounding fault troubleshooting device and method for wind turbine generator
  • Power supply grounding fault troubleshooting device and method for wind turbine generator
  • Power supply grounding fault troubleshooting device and method for wind turbine generator

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Embodiment Construction

[0031] Preferred embodiments of the application are described in detail below in conjunction with the accompanying drawings, wherein the drawings constitute a part of the application and together with the embodiments of the application are used to explain the principles of the application and are not intended to limit the scope of the application.

[0032] In the description of the present application, "plurality" means two or more, unless otherwise specifically defined.

[0033] This application provides a power supply ground fault troubleshooting device for a wind turbine, the device includes: an auxiliary power module 101 and a control module 102, the auxiliary power module is electrically connected to the control module, and when the wind turbine is overhauled, the auxiliary power module and the wind turbine Multiple power supply circuits in the power control system 201 are connected to form corresponding multiple auxiliary power supply circuits;

[0034] The auxiliary pow...

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Abstract

The invention relates to a power supply grounding fault troubleshooting device and method for a wind turbine generator. The device comprises an auxiliary power supply module and a control module, wherein the auxiliary power supply module is electrically connected with the control module, the auxiliary power supply module is used for transmitting an over-current protection action signal to the control module if the over-current protection action signal is detected when the power supply grounding fault occurs in a wind turbine generator, the control module is used for determining that the grounding faults exist in multiple auxiliary power supply loops according to the over-current protection action signal and triggering an auxiliary power supply closing signal so as to keep the fault state of the wind turbine generator, the fault state of the wind turbine generator is reset by a maintainer, the auxiliary power supply loops of the auxiliary power supply module to the wind turbine generator are gradually reduced, the auxiliary power supply module and the control module are used for repeated detection so as to check out a target auxiliary power supply loop with a grounding fault, and a grounding fault power supply circuit of the wind turbine generator is correspondingly determined. According to the invention, the power supply grounding fault of the wind turbine generator can be effectively checked, and the maintenance difficulty is reduced.

Description

technical field [0001] The present application relates to the field of equipment fault detection, in particular to a power ground fault troubleshooting device and method for wind turbines. Background technique [0002] With the development of wind energy and green energy, more and more wind turbines are erected all over the mountains and rivers. These devices often need maintenance. The power control system of wind turbines uses 24v DC power supply. Regular dynamic instantaneous ground faults, wind turbines generally have hundreds of power supply circuits, once a dynamic instantaneous ground fault occurs, the wind turbine stops, and many error signals will be generated, maintenance personnel cannot identify the specific power supply circuit where the ground fault occurs, and the traditional It is also difficult to find the ground fault point with the method of testing resistance or testing DC voltage; [0003] When the 24v DC power supply loses power instantaneously, with t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/40G01R31/52
CPCG01R31/40G01R31/52
Inventor 邢李方葛鎣刘洪波王明刚刘鹏
Owner 华能四平风力发电有限公司
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