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Design of New Induction Heating Power Supply for Forging Applications Using Current-Source PWM Converter and Inverter

전류원 PWM 컨버터 / 인버터를 이용한 새로운 단조용 유도가열 전원장치의 설계

  • Choi, Seung-Soo ;
  • Lee, Chang-Woo ;
  • Kim, In-Dong
  • 최승수 ;
  • 이창우 ;
  • 김인동
  • Received : 2018.06.30
  • Accepted : 2018.11.27
  • Published : 2018.12.01

Abstract

Induction heating can convert electrical energy to thermal energy with high conversion efficiency and quick heating. Currently, a current source rectifier/inverter-fed parallel resonant circuit is widely used as an induction heating power supply for forging applications. However, the conventional induction heating power supplies composed of phase-controlled rectifier and SCR inverter have low efficiency and low power factor at input side, and require additional starting circuitry. So this paper proposes new induction heating power supply topologies for forging applications which have high power factor, high efficiency, and large output power. It also suggests detailed design guideline.

Keywords

Induction heating;Power factor;Current source converter;Current source inverter

References

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Acknowledgement

Supported by : 중소기업청