Effect Mechanism of Load Variation on Torsional Vibration for Single-phase Induction Motor
ZHAO Hao1,2,FENG Hao1,3
1. Information Engineering College of Zhejiang University of Technology, Hangzhou, Zhejiang 310023, China
2. Nanhu College of Jiaxing University, Jiaxing, Zhejiang 314001, China
3. Automation College of Hangzhou Dianzi University, Hangzhou, Zhejiang 310018, China
Abstract：For the influence of load variation on its torsional vibration, the application range of single-phase induction motor is limited. In order to analyze the effect mechanism of load variation on torsional vibration, the mathematical models of single-phase induction motor are established firstly, including the simplified equivalent circuit and corresponding phasor diagram, meanwhile the ellipse degree of rotating magnetic field is defined. Then the load is changed under the motor rated voltage, the torsional vibration of motor is tested and the results show that the existence of minimum, and the parameters of motor winding are changed correspondingly. The experimental results are analyzed by using phasor diagram finally, and the effect mechanism of load variation on torsional vibration for motor is revealed.
2017, Vol. 38 
