The Comparative Analysis of 2-Phase Inverter Topologies for 2-Phase Induction Motor

2상 유도전동기 구동을 위한 2상 인버터 토폴로지의 비교 분석

  • Received : 2015.12.30
  • Accepted : 2016.05.23
  • Published : 2016.06.01


In this paper, three kinds of the inverter topologies for the variable speed drive of 2-phase induction motor are compared and analyzed. The 2-phase inverters are classified into 2-leg, 3-leg, and 4-leg types depending on the number of power switching devices. And they use the output voltage vectors of the different forms according to the inverter topologies. Based on the comparative analyzed results, the effective values of output voltage have been defined by the linear modulation range. Therefore, the motor design guideline is proposed in order to decide a rated voltage of 2-phase induction motor according to the inverter topologies. Also, the computer simulations are carried out to verify the output voltage and current characteristics of each inverter topology.


2-phase induction motor;2-phase inverter;2-leg inverter;3-leg inverter;4-leg inverter


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