Journal of Power Electronics

The Korean Institute of Power Electronics (전력전자학회)
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Novel Soft Starting Algorithm of Single Phase Induction Motors by Using PWM Inverter

  • Kim, Hae-Jin (CAC Engineering Department, LG Electronics) ;
  • Hwang, Seon-Hwan (Department of Electrical Engineering, Kyungnam University) ;
  • Kim, Jang-Mok (Department of Electrical Engineering, Pusan National University)
  • Received : 2018.04.02
  • Accepted : 2018.08.09
  • Published : 2018.11.20
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Abstract

This paper proposes a novel soft starting algorithm by using PWM inverter technique to control an amplitude of the motor starting current at a single-phase induction motor (SPIM). Traditional SPIM starting methods such as a Split-Phase, Capacitor-Start, Permanent-Split Capacitor (PSC), Capacitor-Start Capacitor-Run (CSCR), basically cannot control the magnitude of starting current due to the fixed system structures. Therefore, in this paper, a soft starting algorithm based on a proportional resonant (PR) control with a variable and constant frequency is proposed to reduce the inrush current and starting up time. In addition, a transition algorithm for operation modes is devised to generate a constant voltage and constant frequency (CVCF). The validity and effectiveness of the proposed soft starting method and transition algorithm are verified through experimental results.

Keywords

References

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