Title :
A PWM AC controller-based high current power supply
Author :
Joos, G. ; Ziogas, P.D.
Author_Institution :
Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, Que., Canada
Abstract :
The authors propose a topology based on a practical and reliable pulse-width-modulation (PWM) AC controller connected to the line side of the power transformer, the low voltage winding supplying an uncontrolled diode rectifier. The AC controller power circuit structure ensures reliable switch operation, and the equal PWM pattern is efficient and simple to implement. Advantages of the proposed topology include increased power factor, low AC input current and DC output voltage harmonic distortion, high efficiency, and high reliability. The authors describe the operation of the proposed topology and derive the characteristic equations. Simulation results are verified on an experimental 10 kVA prototype unit
Keywords :
harmonics; power factor; power supplies to apparatus; power transformers; pulse width modulation; rectifiers; reliability; transformer windings; voltage control; 10 kVA; AC controller; AC input current; PWM; diode rectifier; efficiency; harmonic distortion; low voltage winding; power factor; power supply; power transformer; reliability; topology; voltage control; Circuit topology; Current supplies; Power supplies; Power transformers; Pulse transformers; Pulse width modulation; Pulsed power supplies; Space vector pulse width modulation; Switches; Voltage control;
Conference_Titel :
Industrial Electronics, Control, Instrumentation, and Automation, 1992. Power Electronics and Motion Control., Proceedings of the 1992 International Conference on
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-0582-5
DOI :
10.1109/IECON.1992.254497
