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WIND POWER GENERATING SET SAFETY CHAIN SYSTEM, MONITORING METHOD, VARIABLE PITCH CONTROLLER AND WIND POWER GENERATING SET
WIND POWER GENERATING SET SAFETY CHAIN SYSTEM, MONITORING METHOD, VARIABLE PITCH CONTROLLER AND WIND POWER GENERATING SET
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机译：风力发电机组安全链系统，监控方法，变桨距控制器和风力发电机组
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摘要
A wind power generating set safety chain system, a monitoring method, a variable pitch controller and a wind power generating set. The wind power generating set safety chain system comprises variable pitch cabinets (41) and a first safety chain (50). Each variable pitch cabinet (41) is internally provided with a variable pitch controller (42); the first safety chain (50) comprises first relays (51) corresponding to the variable pitch cabinets (41), each first relay (51) comprising a first coil (511) and a first contact (512), the first contact (512) being connected to the variable pitch controller (42); the variable pitch controller (42) obtains a first voltage signal of a power supply line of the first coil (511) by means of a first monitoring input port; and under the condition that the first voltage signal is a high-level signal, the wind power generating set continues operating for at least a period of time, thereby improving the accuracy of safety monitoring of a safety chain of the wind power generating set, and avoiding power generation loss caused by the shutdown of the wind power generating set due to misjudgment.
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