笼型感应电动机断条故障前后转子电磁力计算及结构静力学分析

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Abstract Takingthe Y802-2 type squirrel-cage induction motor asan example,the electromagnetic force and structural static on the rotor are researched when the motor operates with the broken bars fault.Based on the results of the two-dimensional transient magnetic field,the magnetic force iscalculated by the Maxwell tensor method and the principle of the Lorentz force.Then the change patterns with time of the rotor electromagnetic force are given before and after the broken bars fault.In addition,the validity of the calculated results is confirmed through comparing with the ones measuredin the experiments.Using the calculated electromagnetic forceas the load,the structural static of the rotor in the steady state is studied afterwards.The fault deformation distribution on the rotor is then achieved.The further evolution trend of the broken bars fault can be speculated by the rotor electromagnetic force and the change of displacement before and after the fault.

Key words： Induction motor broken bars fault finite element method electromagnetic force structural static fault deformation

Received: 30 January 2015 Published: 08 September 2015

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TM343

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	Xie Ying
	Feng Chunshuang
	Yang Zhongxue
	Liu Haisong
	Wang Ze

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Xie Ying,Feng Chunshuang,Yang Zhongxue等. Electromagnetic Force Calculation and Structural Static Analysis on the Rotor of Squirrel-cage Induction Motors Before and After the Broken Bars Fault[J]. Transactions of China Electrotechnical Society, 2015, 30(15): 164-171.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2015/V30/I15/164

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