Wind turbine noise

Compared with other generators, the main difference between wind turbines is power, and the other differences are power, volume and installation environment; wind power generation is currently mainly about cost and life issues, and noise is not the main issue. . The noise of the generator is mainly mechanical noise and electromagnetic noise. The mechanical noise is mainly a bearing problem, and the electromagnetic noise is mainly an electromagnetic eddy current problem. The analysis of waveform, spectrum and sound level can be used as a means to understand the current situation and analyze the noise source; the scope of influence can be Calculation based on point sound source (double distance, sound level reduced by 6dB);