Title :
New simplified control algorithm for synchronous rectifiers
Author :
Bhowmik, S. ; Spée, R. ; Alexander, G.C. ; Enslin, J.H.R.
Author_Institution :
Dept. of Electr. & Comput. Eng., Oregon State Univ., Corvallis, OR, USA
Abstract :
A new simplified control strategy for three-phase AC-DC rectifiers is presented. The proposed control algorithm is simple, robust and inexpensive and can be used for unity and variable power factor operation. The paper describes the proposed control strategy and its implementation with the help of a low-cost Intel 80C196KC microprocessor using fixed switching frequency PWM. The control algorithm is experimentally verified on a 50 kVA active input/output IGBT AC/AC converter. Experimental results and waveform of the input current and voltages are provided to prove the efficacy of the proposed controller
Keywords :
AC-AC power convertors; AC-DC power convertors; PWM power convertors; electric current control; insulated gate bipolar transistors; microcomputer applications; power engineering computing; power factor; power semiconductor switches; rectifying circuits; robust control; switching circuits; voltage control; 50 kVA; active input/output IGBT AC/AC converter; fixed switching frequency PWM; input current waveform; input voltage waveform; low-cost Intel 80C196KC microprocessor; robust control; simplified control algorithm; synchronous rectifiers; three-phase AC-DC rectifiers; unity power factor operation; variable power factor operation; Electric variables control; IEC standards; Insulated gate bipolar transistors; Microprocessors; Power harmonic filters; Power system harmonics; Pulse width modulation; Reactive power; Rectifiers; Voltage control;
Conference_Titel :
Industrial Electronics, Control, and Instrumentation, 1995., Proceedings of the 1995 IEEE IECON 21st International Conference on
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-3026-9
DOI :
10.1109/IECON.1995.483458
