Wind-driven generator with novel cooling mode

Abstract

A wind-driven generator with a novel cooling mode comprises a generator main structure and externally-mounted cooler. The cooling surface of the externally-mounted cooler is connected to the generatormain structure. The externally-mounted cooler includes a cooler box, an air inlet, an air outlet, and an air filtering device, wherein the cooler box is provided therein with a cooling air duct; theinlet of the cooling air duct is the air inlet; the air filtering device is disposed at the air inlet; and the other side of the outlet of cooling air duct is provided with the air outlet. The wind-driven generator can ventilate and cool the main body of the wind-driven generator by lower-temperature clean air in a self-ventilation way, has a heat dissipation effect, greatly reduces heat loss, reduces a failure rate caused by poor heat dissipation, and prolongs a service life so as to increase generated energy. The cooling scheme provided in the invention has good applicability, and can be applied to both an energy-feedback wind-driven generator and a squirrel cage asynchronous wind-driven generator.

Description

technical field [0001] The invention relates to a wind power generator with structure, simple installation, good cooling effect and low overall cost. Background technique [0002] The wind turbine is the core component that converts wind energy into electrical energy, and its cooling method directly affects the loss of the generator, thereby affecting the efficiency of the wind turbine. Mainstream wind turbines, including doubly-fed wind turbines, permanent magnet wind turbines and squirrel-cage asynchronous generators, adopt cooling methods: external air-to-air cooling with internal drive (IC616), and external air-to-air cooling without internal drive External air-to-air cooling (IC666), external air-to-water cooling (IC86W). The above cooling methods all use the secondary cooling medium and the primary cooling medium to exchange heat through the external cooling device, and then use the primary cooling medium to cool down the heating elements such as the inner iron core a...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the poor heat dissipation performance of the existing wind-driven generators, the present invention provides a wind-driven generator with a new cooling method, comprehensively considering the operating environment of the wind-driven generator and the cooling structure of the existing wind-driven generator, by improving The cooling structure of the wind turbine further utilizes the clean air medium to improve the heat dissipation of the wind turbine, reduce the requirements for the heat resistance of the generator material, realize the optimization of the comprehensive performance of the wind turbine, and reduce the manufacturing costs of wind turbine components. cost

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