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| Transient Performance of a Novel High Efficiency Single-Phase Induction Motor With Three Series-Connected Windings |
| Zhong Hui1, 2, Wang Xiuhe1, Zhang Cheng2, Wei Bei1, Mu Xiaolei1 |
| 1. Shandong University Jinan 250061 China 2. Shandong Lijiu Electrical Machinery Co. Ltd Rushan 264500 China |
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Abstract The novel high efficiency single-phase induction motor has three series-connected stator windings which connected with two capacitors, which can operate almost symmetrically with single-phase supply with higher efficiency and smaller volume than the normal single-phase motor with same rated power. Based on the symmetrical components method and the stator circuit structure of the novel single-phase induction motor with three-phase symmetrical windings and two capacitors, the balanced operation condition of the motor is deduced and the actual-variable transient simulation model of the motor is constructed in a-b-c stationary reference frame. The transient performance of the motor are simulated, and the variation patterns of capacitors to start-time, torque, and speed are presented, which are important to the design of the motor. The performance tests are done on the proposed motor and the three-phase induction motor. The simulation results from the model agree well with the experimental investigations. To improve the starting performance, starting method with two additional capacitors is proposed, and verified by simulated results. To reduce the number of starting capacitors, a new starting method with one additional starting capacitor is proposed and verified.
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Received: 19 March 2010
Published: 07 March 2014
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2011, Vol. 26 
