风力发电机振动与噪声测试及其减噪方法研究

Test research on vibrations and noise of wind turbine and noise reduction method

本文简要介绍了风力发电机的结构和工作原理,以及风力发电机振动和噪声的危害。根据发电机振动与噪声的发生机理和产生规律,本文制定相应实验方案对其进行测试,得出风力发电机的振动与噪声主要是风机的机械振动与空气动力学(旋转噪声和涡流)噪声,进而提出了降低风力发电机振动与噪声的方法为主动控制(风轮平衡与阻尼减振降噪控制)及被动控制(吸声),为研究开发低噪声风力发电机提供理论基础。

The wind turbine structure and working principle were described in this paper, and the vibration and noise hazards had been related to. According to the mechanism of vibration and noise generating, the test has been established and the mainly results are mechanical vibration and air fan dynamics （rotation noise and eddy current） noise, and then the methods to reduce vibration and noise are active control （ wind wheel balance and damping vibration and noise control） and passive control （acoustic） , meanwhile, the theoretical basis for research and development of low - noise wind turbines were provided.