Title :
PWM rectifier with low DC voltage ripple for magnet supply
Author :
Ciscato, D. ; Malesani, L. ; Rossetto, L. ; Tenti, P. ; Basile, G.L. ; Pasti, M. ; Voelker, F.
Author_Institution :
Padova Univ., Italy
Abstract :
Control techniques that optimize the behaviour of pulse-width modulation (PWM) rectifiers for magnet supplies are examined. Different control strategies, both with preprogrammed and variable switching patterns, are examined and compared in terms of optimization of the system performance. Optimum digital PWM, multilevel delta modulation, and hybrid PWM/delta techniques are analyzed. The validity of the control methods was verified by simulation and experimental tests on a 60 kW prototype. It was observed that, in practice, digital PWM techniques are better suited for optimizing the AC converter performance, while delta modulation techniques give better results in terms of DC current and voltage distortion.<>
Keywords :
power supplies to apparatus; pulse width modulation; rectifiers; switching; 60 kW; DC current distortion; PWM rectifier; control strategies; digital PWM; hybrid PWM/delta techniques; low DC voltage ripple; magnet supply; multilevel delta modulation; performance optimisation; preprogrammed switching patterns; pulse-width modulation; simulation; variable switching patterns; voltage distortion; Control systems; Delta modulation; Low voltage; Magnetic analysis; Magnetic modulators; Magnetic variables control; Pulse width modulation; Rectifiers; Space vector pulse width modulation; System performance;
Conference_Titel :
Industry Applications Society Annual Meeting, 1990., Conference Record of the 1990 IEEE
Conference_Location :
Seattle, WA, USA
Print_ISBN :
0-87942-553-9
DOI :
10.1109/IAS.1990.152309
