DocumentCode :
2242101
Title :
Power factor compensation of a controlled rectifier with non-sinusoidal generator voltage using passive components
Author :
Hernández-Gómez, M. ; Ortega, R. ; Lamnabhi-Lagarrigue, F. ; Escobar, G.
Author_Institution :
Lab. des Signaux et Syst., Gif-sur-Yvette, France
fYear :
2008
fDate :
9-11 Dec. 2008
Firstpage :
3755
Lastpage :
3760
Abstract :
In a recent paper we introduced a framework for analysis and design of (possibly nonlinear) power factor (PF) compensators for electrical systems operating in non-sinusoidal (but periodic) regimes with nonlinear loads. In particular, under the standard assumption that the generator is a voltage source with no impedance, we characterized all nonlinear loads whose PF is improved with a given nonlinear compensator. In this brief note we use this framework to study the problem of passive PF compensation of a classical half-bridge controlled rectifier (terminated by a resistor) with non-sinusoidal generator voltage. We give necessary and sufficient conditions for improvement of PF with linear inductors or capacitors, which determine ranges for the compensator parameters that depend on the rectifier fire angle and the amplitude of the voltage source. Given the ¿phase advance¿ operation of the rectifier it is expected that capacitive compensation improves PF, it is however less obvious that this can also be achieved (under some suitable conditions) with inductors.
Keywords :
compensation; power factor; power system control; rectifiers; capacitive compensation; compensator parameters; electrical systems; half-bridge controlled rectifier; linear capacitors; linear inductors; necessary condition; nonlinear compensator; nonlinear loads; nonsinusoidal generator voltage; nonsinusoidal regimes; passive PF compensation; passive components; periodic regimes; phase advance operation; power factor compensation; power factor compensators analysis; power factor compensators design; rectifier fire angle; sufficient condition; Capacitors; Character generation; Impedance; Inductors; Power generation; Reactive power; Rectifiers; Resistors; Sufficient conditions; Voltage control;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Decision and Control, 2008. CDC 2008. 47th IEEE Conference on
Conference_Location :
Cancun
ISSN :
0191-2216
Print_ISBN :
978-1-4244-3123-6
Electronic_ISBN :
0191-2216
Type :
conf
DOI :
10.1109/CDC.2008.4738855
Filename :
4738855
Link To Document :
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