【作者】 冯海军； 周璞； 钟焱； 祝长生；

【Author】 Feng Haijun;Zhou Pu;Zhong Yan;Zhu Changsheng;

【机构】 中国船舶重工集团公司第七○四研究所； 浙江大学电气工程学院；

【摘要】 为了获取电压对异步电动机的电磁和振动特性的影响,以一台7.5kW异步电动机为研究对象,通过有限元仿真,对电机径向气隙磁通密度(磁密)和径向力波进行计算,获得电机主要电磁激振力的分布。然后,通过在异步电机定子内表面布置霍尔传感器以及在机身布置振动加速度传感器测量电机定子表面磁感应强度的方法,间接获取电机电磁激振力特性,通过改变异步电动机的输入电压,研究电压对电机电磁激励及振动特性的影响。更多还原

【Abstract】 In order to obtain the influence of voltage on electromagnetic and vibration of motor,a 7.5 kW asynchronous motor was taken as an example,the radial gas-gap flux density and radial force was calculated by finite element simulation to obtain the main distribution of the electromagnetic force.Then,hall sensors were disposed on stator surface and acceleration sensors were disposed on body surface of the asynchronous motor,measuring the surface induction density to get the electromagnetic excitation characteristics of the motor by indirect way,and analysis the influence of voltage on electromagnetic excitation and vibration characteristics of the motor by changing the input voltage.更多还原