All-In-One Induction Heating Using Dual Magnetic Couplings

Wei Han, Kwok Tong Chau, Hoi Chun Wong, Chaoqiang Jiang and Wong Hing Lam
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Wei Han: Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong, China
Kwok Tong Chau: Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong, China
Hoi Chun Wong: Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong, China
Chaoqiang Jiang: Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong, China
Wong Hing Lam: Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong, China

Energies, 2019, vol. 12, issue 9, 1-17

Abstract: This paper proposes and implements an all-in-one induction heating system, which can accommodate both pan-shaped and wok-shaped utensils. Traditionally, the pan is heated by a planar induction cooktop while the wok is heated by a curved induction cooktop. In this paper, both magnetic inductive coupling and magnetic resonant coupling are utilized to achieve excellent heating performance of the wok based on a planar primary coil. The key is to flexibly employ a detachable frustum coil for heating the wok. Specifically, the theoretical models of the proposed induction heating system with and without using the frustum coil are derived to analyze the proposed system. Computational simulation results of the magnetic and thermal fields of the proposed system are provided to elaborate the heating performance of the wok. A 1500 W prototype is designed and built. The calculated, simulated and experimental results are all in good agreement, which validate the feasibility of the proposed induction heating system well.

Keywords: induction heating; wireless power transfer; magnetic resonant coupling; magnetic inductive coupling (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
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