Analysis of high-frequency induction cooker with variable frequency power control

Author

Viriya, P. ; Sittichok, S. ; Matsuse, K.

Author_Institution

Fac. of Eng., King Mongkut´´s Inst. of Technol., Bangkok, Thailand

Volume

3

fYear

2002

fDate

2002

Firstpage

1502

Abstract

This paper presents an analysis of a high frequency induction cooker, using a half-bridge series resonant inverter. The circuit operation is first analyzed, using the Thevenin short-open circuit method, in order to develop an equivalent circuit of simple RLC series connection. Then, by this simplified circuit, voltage and current equations with their spectra can be easily obtained and consequently leading to the calculation of various electrical quantities, which are also verified by experiment, using a prototype cooker of 2 kW 30 kHz with variable power and variable frequency. This cooker also shows that at the same power level of 1.5 kW, its boiling performance is faster than that of the conventional one, 5 and 10 minutes, respectively

Keywords

DC-AC power convertors; bridge circuits; control system analysis; equivalent circuits; frequency control; induction heating; invertors; ovens; power control; resonant power convertors; 1.5 kW; 10 min; 2 kW; 30 kHz; 5 min; RLC series connection; Thevenin short-open circuit method; boiling performance; circuit equations; current equations; equivalent circuit; half-bridge series resonant inverter; high-frequency induction cooker; variable frequency power control; voltage equations; Coils; Diodes; Equivalent circuits; Frequency; Power control; RLC circuits; Rectifiers; Resonant inverters; Steel; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Conversion Conference, 2002. PCC-Osaka 2002. Proceedings of the

Conference_Location

Osaka

Print_ISBN

0-7803-7156-9

Type

conf

DOI

10.1109/PCC.2002.998196

Filename

998196