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Detector and detection method for alternating-current loops of wind generation set

An AC circuit, wind turbine technology, applied in the direction of instruments, measuring electricity, measuring devices, etc., can solve problems such as heavy workload, detection of missing items, easy introduction of human errors, etc., to achieve low prices, increase reliability, and improve test efficiency. and safety effects

Inactive Publication Date: 2012-06-27
XUJI GRP +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] The purpose of the present invention is to provide a wind turbine AC circuit detection system and detection method, to solve the existing detection method heavy workload, easy to introduce human errors, the detection of missing items

Method used

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  • Detector and detection method for alternating-current loops of wind generation set

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Embodiment Construction

[0017] The wind turbine AC circuit detection system of the present invention uses a controller to control the contactors K1, K2, and K3 to power on the main control system, and changes the corresponding micro-breaks and contactors (through communication control) by opening and closing the wind turbine control system. The presence or absence of each phase voltage of the AC circuit of the wind turbine control system is detected by the test system through the optical barrier and the controller to detect the presence or absence of the voltage of the corresponding wind turbine control system loop voltage, whether the phase sequence is correct, and whether the action of the contacts is consistent with expectations , so as to detect whether there are virtual connections in the main control system hardware circuit, devices and wiring. The micro-breaks F1 and F2 of the test system are installed at positions that are convenient for the experimenters to operate. On the one hand, it needs ...

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Abstract

The invention relates to a detection system and a detection method for alternating-current loops of a wind generation set. The detection method comprises the following steps: a main control system is electrified by controlling a contactor; a controller is used for disconnecting or connecting corresponding micro circuit breakers and contactors of many alternating-current loops of a control system of the wind generation set so as to control the existence of various phase voltage of the corresponding alternating-current loops of the control system of the wind generation set; and whether the voltage of the corresponding loops of the control system of the wind generation set exists or does not exist, whether phase sequences are correct and whether the action condition of a contact is the same as control expectation can be detected by a test system through an optical isolator and the controller, therefore, whether hardware loops, devices and connection wires of the main control system are virtually connected can be detected. The detection system and the detection method disclosed by the invention are capable of automatic judging by adopting the controller and preventing from detecting the certain loops in a missing manner because of artificial faults caused by many loops and high workload; furthermore, the test efficiency and the safety are greatly increased; in addition, because the number of the output alternating-current loops of the main control system of the wind generation set is nearly 100, artificial testing is time-wasting, error detection and missed detection are easily caused, and potential safety hazards also exist.

Description

technical field [0001] The invention relates to the technical field of AC circuit testing, and relates to a detection system and a detection method for an AC circuit of a wind turbine. Background technique [0002] The control system of wind turbines is a weak link in domestic wind power equipment. The testing and quality control of wind turbines is a difficult problem in the field of wind power. The relevant IEC standards have not been actually adopted, and there are no effective and practical testing tools in the industry, such as large wind turbines 2.0 The MW AC control circuit is composed of wires, micro-break switches, fuses, contactors, CPU, etc. The PLC input module collects the status of the micro-break contactors, etc., and the output module controls the closing and opening of the corresponding contactors and relays, thereby realizing Loop function and its control and fault identification, etc. [0003] The AC loop of the wind power control system is responsible f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/02G01R31/07G01R29/18G01R31/74
Inventor 张举良陶学军郭改霞李国杰王兴安贾晓杰周伟桂黄宇张聪
Owner XUJI GRP
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