Title :
Comparison of swept frequency and phase shift control for forced commutated series resonant induction heating converters
Author :
Koertzen, Henry W. ; Van Wyk, Jacobus D. ; Ferreira, Jan A.
Author_Institution :
Fac. of Eng., Rand Afrikaans Univ., Johannesburg, South Africa
Abstract :
The choice of a circuit topology and switching strategy for a specific induction heating application will to a large extent depend on the requirements for the application and the variation in the parameters of the load during heating. In this paper the forced commutated swept frequency and the forced commutated phase shift control switching strategies for the voltage fed, full-bridge, series resonant circuit topology are compared. This is done by means of a case study for a constant load current control loop and the results are obtained with an analytical model. The phase shift control switching strategy proved to be more efficient regarding semiconductor ratings
Keywords :
bridge circuits; commutation; frequency control; induction heating; phase control; resonant power convertors; switching circuits; constant load current control loop; forced commutated series resonant converters; full-bridge converter; induction heating converters; phase shift control; semiconductor ratings; swept frequency control; switching strategies; voltage fed converter; Circuit topology; Force control; Frequency; Heating; IEEE members; RLC circuits; Resonance; Switches; Switching circuits; Voltage;
Conference_Titel :
Industry Applications Conference, 1995. Thirtieth IAS Annual Meeting, IAS '95., Conference Record of the 1995 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-3008-0
DOI :
10.1109/IAS.1995.530551
