COOLING SYSTEM AND METHOD FOR WIND POWER GENERATOR AND WIND POWER GENERATOR SET

摘要

A cooling system and method for a wind power generator and a wind power generator set. The cooling system for a wind power generator includes air extraction pipelines and air discharge devices. The air extraction pipelines are located inside a generator case. A pipeline inlet in communication with a generator, a first pipeline outlet in communication with the outside of the generator case, and a second pipeline outlet in communication with the inside of the generator case are arranged on the air extraction pipelines, and the first and second pipeline outlets are provided with air doors. Therefore, the cooling efficiency of the generator set in a high temperature environment is enhanced, and the temperature of the generator case is kept in a low temperature environment. The cost is lowered and the consumed energy is reduced.

主权项

1. A system for cooling wind turbine generators, comprising an air extraction pipe and an air exhaust device, wherein the air extraction pipe is located in a nacelle and is provided with a pipe inlet, a first pipe outlet and a second pipe outlet, the pipe inlet is in communication with a generator, the first pipe outlet is provided with a first pipe air damper, and the second pipe outlet is provided with a second pipe air damper;
in a case that a temperature of the generator is higher than a first set temperature and a temperature of the nacelle is higher than a second set temperature, the first pipe air damper is configured to be opened to communicate the first pipe outlet with an outside of the nacelle; in a case that the temperature of the nacelle is lower than or equal to the second set temperature, the second pipe air damper is configured to be opened to communicate the second pipe outlet with an inside of the nacelle; and in a case that the temperature of the generator is higher than the first set temperature and the temperature of the nacelle is higher than the second set temperature, the air exhaust device is configured to extract hot air generated by the generator into the air extraction pipe through the pipe inlet and exhaust the hot air to the outside of the nacelle through the first pipe outlet; and in a case that the temperature of the nacelle is lower than or equal to the second set temperature, the air exhaust device is configured to extract the hot air generated by the generator into the air extraction pipe through the pipe inlet and exhaust the hot air to the inside of the nacelle through the second pipe outlet.