Journal of Power Electronics

  • 제24권7호
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  • Pages.1013-1023
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  • 2024
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  • 1598-2092(pISSN)
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  • 2093-4718(eISSN)
전력전자학회 (The Korean Institute of Power Electronics)
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Phase-shifted third harmonic modulation technique for induction heating applications to improve soft switching capability

  • Wonsik Jeong (Department of Electrical Engineering, Ulsan National Institute of Science and Technology (UNIST)) ;
  • Kyung‑Wook Heo (Department of Electrical Engineering, Ulsan National Institute of Science and Technology (UNIST)) ;
  • Jun‑Suk Lee (Department of Electrical Engineering, Ulsan National Institute of Science and Technology (UNIST)) ;
  • Jee‑Hoon Jung (Department of Electrical Engineering, Ulsan National Institute of Science and Technology (UNIST))
  • 투고 : 2024.01.08
  • 심사 : 2024.04.18
  • 발행 : 2024.07.20
⟨ 이전 논문 다음 논문 ⟩

초록

Induction heating (IH) systems have been attracting more attention due to their direct heating capability. Moreover, IH systems have the advantages of fast heating performance, high efficiency, cleanliness, and safety. However, they also have the disadvantage of limited pot material, size, and misalignment. In general, IH systems cannot properly heat non-ferromagnetic pots because of their low resistance, which induces a large switch current. Third harmonic modulation (THM) is proposed to mitigate this issue. The conventional THM can heat low-impedance pots; however, it has drawbacks in high possibility of hard switching due to the high first harmonic current in the resonant tank. In this paper, a phase-shifted THM is proposed to improve soft switching and the maximum heating capabilities compared with the conventional THM by reducing the first harmonic component of the resonant current.

키워드

과제정보

This research was supported by National Research Foundation of Korea (RS-2023-00219443).

참고문헌

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