Mathematical Modeling of Eddy-Current Loss for a New Induction Heating Device | Zendy

Hai Du | Zendy; Junyuan Li | Zendy; Yanbin Qu | Zendy

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Mathematical Modeling of Eddy-Current Loss for a New Induction Heating Device

Author(s) -

Hai Du,

Junyuan Li,

Yanbin Qu

Publication year - 2014

Publication title -

mathematical problems in engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.262

H-Index - 62

eISSN - 1026-7077

pISSN - 1024-123X

DOI - 10.1155/2014/923745

Subject(s) - eddy current , finite element method , induction heating , correctness , mechanics , current (fluid) , magnet , control theory (sociology) , mechanical engineering , engineering , computer science , electromagnetic coil , physics , electrical engineering , structural engineering , algorithm , control (management) , artificial intelligence

A new induction heating device is presented in this paper. This device can convert mechanical energy into heat energy by utilizing eddy currents, which are induced by rotating permanent magnets. A mathematical model is established for estimating eddy-current loss of the device. The distribution of induced currents and the resultant magnetic field intensity are considered in the process of modeling the eddy-current loss and so is the mutual influence of the electric field between neighborhood pole projection areas. Particularly, the skin effect is considered by correcting the numerical integral domain of eddy current density, which has great effect on the calculating results. Based on specific examples, the effectiveness and correctness of proposed model are proved by finite element analysis. The results show that the mathematical model can provide important reference for design and structure optimization of the device

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