科研之友
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摘要
In this paper, a systematic procedure has been developed to analyze electromagnetic interference (EMI) emission of actual domestic induction cookers under normal operation condition. The induction cooker is divided into two subsystems: one is a printed circuit board (PCB) with some discrete components, and the other is induction heating (IH) system consisting of flux concentrators, concentric coils and a vessel made of ferromagnetic material. By using an equivalent impedance of the IH system, two subsystems are separately modeled and analyzed. In the PCB subsystem, parasitic effects of the lumped components are modelled, and a multi-port network is developed to solve excitations at the IH system and each discrete component. In the IH subsystem, an electromagnetic-thermal analysis is conducted. Based on the temperature distribution on the vessel, an approximate model of the vessel with the linear material and the piecewise constant temperature is built up. Simulation and measurement results are given to validate the proposed analysis approach.
- 出版日期2018-12
- 单位西安电子科技大学
