Open AccessApplication of Fuzzy Controller for Improvement of Power Quality using UPQC
Author(s) -
M Sonia Kundeti Krishna Rao
Publication year - 2020
Publication title -
international journal of modern trends in science and technology
Language(s) - English
Resource type - Journals
ISSN - 2455-3778
DOI - 10.46501/ijmtst060806
Subject(s) - control theory (sociology) , interfacing , voltage , fuzzy logic , electronic engineering , capacitor , controller (irrigation) , active filter , engineering , computer science , power quality , pid controller , control engineering , electrical engineering , control (management) , computer hardware , artificial intelligence , biology , temperature control , agronomy
Generally, one of the custom power device in FACTS called unified power quality conditioner, which is usedto compensate the voltage and current-related Power Quality issues in the distribution systems. Theproposed UPQC technology have an advantage of reduced dc-link voltage without compromising itscompensation capability. This new method also helps to meet the requirement of dc-link voltage for the shuntand series active filters of the UPQC. This type of topology has a capacitor in series with the interfacinginductor across the shunt active filter for filtering purpose, and the system neutral is also considered anddirectly connected to neutral of distribution system avoid the requirement of the fourth leg in the voltagesource inverter. This paper also presents a concept for improving power quality of a power distributionsystem such as an FUZZY logic controller along with the UPQC control strategy. The simulation results arecompared for both conventional PI controller and FUZZY controller.