Safety chain system of wind generating set and fault rapid identification method thereof

A wind turbine and safety chain technology, applied in the control of wind turbines, wind turbines, wind power generation, etc., can solve problems such as affecting power generation efficiency, complex peripheral circuits, and delays in troubleshooting unit maintenance, so as to reduce construction costs and maintenance costs. , The effect of ensuring emergency shutdown and shortening maintenance time

Active Publication Date: 2012-10-24
GUODIAN NANJING AUTOMATION
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The purpose of the present invention is to overcome the inability to effectively disconnect the safety chain in the prior art, the main control system cannot quickly identify the cause ...

Method used

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  • Safety chain system of wind generating set and fault rapid identification method thereof
  • Safety chain system of wind generating set and fault rapid identification method thereof
  • Safety chain system of wind generating set and fault rapid identification method thereof

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Embodiment Construction

[0035] The present invention will be further described below in conjunction with the accompanying drawings of the specification. The following embodiments are only used to explain the technical solutions of the present invention more clearly, and cannot be used to limit the protection scope of the present invention.

[0036] Such as figure 1 and figure 2 As shown, a safety chain system for a wind turbine generator includes a manual emergency stop button module for the generator, a safety relay, a generator status acquisition and safety chain protection and feedback module, a safety chain power supply and control relay, a manual emergency stop button module for the generator, and a safety relay. The input terminals of the safety relay are connected to form a safety chain auxiliary circuit. The output terminals of the safety relay, the unit status acquisition and the safety chain protection and feedback module, the safety chain power supply and the control relay (wire package and r...

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PUM

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Abstract

The invention discloses a safety chain system of a wind generating set and a fault rapid identification method thereof. According to different safety chain trigger objects, a non-intelligent safety relay and a conventional relay are adopted to construct a safety chain loop by a hard-wired series mode so as to form a unit safety system; the state of the safety system is effectively monitored; for the same protected object, the safety chain loop adopts a redundancy design mode; and at least two independent safety chain protection connection points can simultaneously operate, so that the state of effectiveness loss of the safety chain, which is caused by output adhesion of a certain equipment object protection relay connection point, can be more effectively prevented. The safety chain system of the wind generating set and the fault rapid identification method thereof, which are disclosed by the invention, are simple to implement, effective to monitor and low in cost; and meanwhile, the safety and reliability of the safety chain system of the wind generating set are protected by adopting a multilevel protection mode.

Description

Technical field [0001] The invention specifically relates to a safety chain system of a wind power generating set and a rapid fault identification method thereof, and belongs to the technical field of safety of wind power generating sets. Background technique [0002] The safety chain loop of the wind turbine control system is independent of the controller unit in the control system. Its function is to break away from the controller unit in the control system and directly act on the brake system of the unit when a major failure occurs in the unit equipment. The unit can be shut down through the air brake and mechanical brake of the unit blade tip. Ensure the safety of the unit equipment. After the safety chain of the unit is triggered, even if the automatic recovery of the fault is triggered, the safety chain circuit must be reset by manual reset, otherwise the unit cannot start operation. The wind turbine safety chain loop is the last backup protection measure for the unit con...

Claims

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Application Information

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IPC IPC(8): F03D7/00
CPCY02E10/723Y02E10/72
Inventor 杨卫民沙玉婷马文龙王荣兴詹熙师毓佳吴宏
Owner GUODIAN NANJING AUTOMATION
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