Wind turbine generator cabin environment monitoring method and device

Abstract

The invention relates to a wind turbine generator cabin environment monitoring method and device. According to the method, through control over a stepping motor in a wind turbine generator cabin, theair supply action of the wind turbine generator cabin and automatic alternative feeding of a filter net of a filter system are carried out, the method specifically comprises the steps that the environment temperature of the wind turbine generator cabin is collected in real time, a control strategy based on a differential sliding mode algorithm is adopted, according to the environment temperature of the wind turbine generator cabin, the air supply action and the feeding amount of the filter net of the filter system are controlled, and compared with the prior art, the method and device have theadvantages of being high in control precision, capable of prolonging the service life of a cabin device, capable of ensuring temperature balance and environment cleanliness in the cabin and the like.

Description

technical field [0001] The invention relates to the field of environment monitoring of a wind turbine engine room, in particular to a method and device for monitoring the environment of a wind turbine engine room. Background technique [0002] Wind turbines are large and complex mechanical equipment operating at high altitudes. The costs of transportation, hoisting, and maintenance are relatively high, requiring wind turbines to have high reliability and high availability. Surveys in recent years have shown that many wind turbines are facing various failures, such as over-temperature shutdown, fire accidents, component failures, etc., which directly affect the availability of wind turbines and seriously restrict the availability of wind turbines. Cost recovery. At present, the research of experts or scholars on the monitoring of the internal environment of the engine room mainly focuses on reducing the heat generated by a single heat source component, improving the interna...

AI Technical Summary

Problems solved by technology

However, the heat dissipation performance of the environment monitoring in the engine room cannot be effectively improved, and it cannot play a good indicative role in the occurrence of internal faults in the engine room.

[0003] The way to reduce the calorific value of a single heat source component is to improve the temperature reduction only for the gearbox or main shaft inside the engine room, which cannot reduce the temperature in the engine room as a whole, and the duration is not long; the way to improve the internal layout of the engine room is mainly for the fan. Opening the airframe or increasing the installation of fans for heat dissipation greatly increases the risk of fan operation and increases the economy of fan manufacturing and transformation. It has not been put into use for transformation at present; optimizing the air-conditioning system inside the engine room is manifested when the fan gearbox is too high. When the temperature is high, by improving the heat exchange capacity of the lubrication system and increasing the equivalent cooling power of the "air / oil cooler" in the system, without changing the original oil circuit and fan structure, design and replace a cooler with a higher power to reduce Gearbox oil temperature, but it will affect the service life of the gearbox

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