DocumentCode :
2412014
Title :
An active filter for retrofit applications
Author :
Koozehkanani, Z. Daie ; Mehta, P. ; Darwish, M.
Author_Institution :
Dept. of Electr. Eng. & Electron., Brunel Univ., Uxbridge, UK
fYear :
1996
fDate :
23-25 Sept. 1996
Firstpage :
150
Lastpage :
155
Abstract :
The increase in the occurrence of nonlinear loads in power systems has caused considerable concern to power utilities and manufacturers of power electronics equipment. To alleviate the problems caused by generation of current harmonics, there has been considerable interest in the use of active filters. This paper presents a new approach to the design of active filters which is developed from a unified approach described by Koozehkanani (1996). The proposed active filter configuration provides an alternative approach which has several advantages. Compared with the constant voltage and constant current types, this circuit is much simpler, and the switching frequency is lower, 4 kHz compared with frequencies of the order of 27 kHz. The flexibility afforded by this approach makes it suitable for retrofit applications because filters of this type can be connected to any part of a network. The experimental work reported here was carried out at 120 V supply voltage at power rating of 700 W.
Keywords :
active filters; power system harmonics; switching circuits; 120 V; 4 kHz; 700 W; active filter; current harmonics generation; nonlinear loads; power electronics equipment; power systems; retrofit applications; switching frequency;
fLanguage :
English
Publisher :
iet
Conference_Titel :
Power Electronics and Variable Speed Drives, 1996. Sixth International Conference on (Conf. Publ. No. 429)
ISSN :
0537-9989
Print_ISBN :
0-85296-665-2
Type :
conf
DOI :
10.1049/cp:19960904
Filename :
708330
Link To Document :
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