Title :
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
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;
Conference_Titel :
Power Conversion Conference, 2002. PCC-Osaka 2002. Proceedings of the
Conference_Location :
Osaka
Print_ISBN :
0-7803-7156-9
DOI :
10.1109/PCC.2002.998196
