Title :
Hybrid phase arm power module with nonlinear resonant tank
Author :
Ferreira, J.A. ; Van Ross, A. ; van Wyk, J.D.
Author_Institution :
Energy Lab., Rand Afrikaans Univ., Johannesburg, South Africa
Abstract :
A soft switching concept for a phase arm module, suitable for switching frequencies in the ultrasonic range, is introduced. Apart from series smoothing capacitors on the supply the only additional components to the switches and diodes of the phase arm is a parallel nonlinear resonant tank. A major feature is that the installed switching power of the semiconductors is close to 1 p.u. pulse-width modulation (PWM), as obtained through control of the saturation depth of the saturating inductor
Keywords :
circuit resonance; inductors; power convertors; pulse width modulation; switching circuits; PWM; hybrid phase arm power module; installed switching power; nonlinear resonant tank; parallel nonlinear resonant tank; power converters; pulse-width modulation; saturating inductor; saturation depth control; semiconductors; series smoothing capacitors; soft switching concept; switching frequencies; ultrasonic frequency range; Capacitors; Inductors; Multichip modules; Power semiconductor switches; Pulse width modulation; Resonance; Semiconductor diodes; Smoothing methods; Space vector pulse width modulation; Switching frequency;
Journal_Title :
Industry Applications, IEEE Transactions on
