T. Ruban  Deva Prakash, P.  Jeno Paul, 
    Neuro-Fuzzy Based Constant Frequency-Unified Power Quality Conditioner,
    International Journal of System Signal Control and Engineering Application,
    Volume 4,Issue 1,
    2011,
    Pages 10-17,
    ISSN 1997-5422,
    ijssceapp.2011.10.17,
    (https://makhillpublications.co/view-article.php?doi=ijssceapp.2011.10.17)
    Abstract: The aim of this study is to maintain the constant frequency in the utility using constant frequency unified power quality conditioner with neuro-fuzzy logic controller. A Constant Frequency Unified Power Quality Conditioning system (CF-UPQC) consists of a Unified Power Quality Conditioner (UPQC) and a matrix converter based frequency changer. UPQC is a combination of series active and shunt active filter. The series active filter and shunt active filters are used to compensate the voltage, current imbalance and harmonics. Frequency converter (matrix converter) is used to regulate the supply frequency when it varies beyond the power quality limit. The performance of the CF-UPQC is compared with neuro-fuzzy controller against conventional controller.
    Keywords: India;neuro fuzzy logic controller;active filter;matrix converter;CF-UPQC;Matlab/Simulink