Abstract—In this paper, a novel energy-efficient single-phase
induction motor with three parallel-connected stator windings
and two external capacitors has been proposed. By selecting the
appropriate capacitors, the currents in the three windings will
be approximately symmetric at rated load, thus high rated
efficiency can be obtained. The condition for balanced
operation is analyzed and the method for determining the
requested capacitances is also obtained, based on the
symmetrical component method. It is concluded that, in
comparison with three-phase induction motors of the same
capacity, the novel single-phase induction motor has nearly the
same efficiency but higher power factor when operating at
rated load.
Index Terms—The single-phase operation, symmetrical
component method, the condition for balanced operation,
energy-efficient motor.
The authors are with the State Grid of China Technology College, Jinan,
China (email: ggglml@163.com, gao_nannan@163.com,
peiyingee@163.com, lihb1176@163.com)
[PDF]
Cite: Liangfeng Guo, Nannan Gao, Ying Pei, Hongbo li, and Kerui Chen, "Research on the Condition for Balanced Operation of the Single-Phase Induction Motor with Three Parallel-Connected Windings," International Journal of Materials, Mechanics and Manufacturing vol. 3, no. 3, pp. 205-208, 2015.
![[Click]](http://www.ijmmm.org/img/ijmmm_v7n2_inspec%28IET%29_indexscreenshot.jpg){kind=link}