fuzzy logic based dstatcom for voltage regulation and harmonic reduction
T. Varadharaj,S. Krishna Kumar
Published in International Journal of Advanced Research in Electrical and Electronics Engineering
ISSN: 2321-4775 Impact Factor:1.6 Volume:2 Issue:1 Year: 08 March,2014 Pages:8-13
Abstract
These papers propose the nonlinear control of DSTATCOM (distribution STATCOM) using fuzzy logic based supervision of PI regulator. In this the control methodology of DC capacitor voltage is regulated using a fuzzy PI controller. However during load change, there is considerable variation in DC voltage which might affect compensation. In this work the fuzzy based supervision is proposed to improve transient performance of DC link, which varies the gain of PI regulator to minimize the error in DC link capacitor voltage during the load change is obtained. Additionally the harmonic of the load current is reduced below the standard value.
Kewords
DC link voltage control, fuzzy supervisor, DSTATCOM, symmetrical PI controller, harmonic analysis, voltage source inverter
Reference
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