双馈风力发电机轴电压和轴电流的危害及防护  

Harm and Protection on Shaft Voltage and Shaft Current of the Double-fed Wind Turbine

作　　者：谭晓华 谭新波 刘勇辉 晋茂辉 TAN Xiaohua;TAN Xinbo;LIU Yonghui;JIN Maohui(Tianjin University of Technology and Educat;Xiangtan Electric Manufacturing Group;Tianjin Tongshang Technology Co.,Ltd.)

机构地区：[1]天津职业技术师范大学机械学院,300222 [2]湖南湘电动力有限公司,411101 [3]天津彤尚科技有限公司,300300

出　　处：《电机技术》2020年第5期51-54,共4页Electrical Machinery Technology

基　　金：天津市教委科研计划项目(2017KJ108);天津职业技术师范大学人力启动项目(KYQD1702)。

摘　　要：由于变流器的影响,双馈风力发电机在滚动轴承上容易感应出较高的轴电压,从而产生轴电流,导致风力发电机的轴承易被损坏。文章介绍了轴电流的产生原因和危害,使用泰克示波器对其进行测量,并结合实验数据提供轴电压和轴电流的防护措施。Under affection of the convector, high shaft voltage is frequently induced on the rolling bearing of double-fed wind turbine, and then, the shaft current is produced, to cause the bearing damage of the wind turbine. Cause and harm of the shaft current is introduced while application of the Tektronic oscilloscope into the measurement of the shaft current is performed either. Combined with the test data, protection from shaft voltage and shaft current is put forward.

关 键 词：双馈风力发电机 轴电压 轴电流 

分 类 号：TM315[电气工程—电机]