http://10.9.150.37:8080/dspace//handle/atmiyauni/515 2026-04-27T18:57:52Z http://10.9.150.37:8080/dspace//handle/atmiyauni/651 Title: Power Quality Improvement in a PV Panel connected Grid System using Shunt Active Filter Authors: Chovatia, Chandani M.; Gupta, Narayan P.; Gupta, Preeti N. Abstract: This paper describes improved methodology of power quality at utility end in a grid system connected with renewable source of energy for power generation. With development of new functionalities solar energy based Photovoltaic cells are upcoming energy source with higher efficiency. Solar cells are more preferred as renewable source of energy. Solar energy being naturally available in abundance and non- polluting is one of the most promising sources. Excessive use of power electronics devices lead to power quality problems. Effects of poor power quality like sag, swell distortion in waveform, harmonics, reactive power generation has affected both grid as well as utility sectors. Harmonics are major problem diminishing the power quality. Active Power filter are powerful tool for mitigation of harmonics. Active filter suppress harmonic current and compensate reactive power simultaneously. This paper presents the performance of Shunt active filter with VSI topology using synchronous reference frame theory. By this methodology harmonic suppression is possible within permissible standards as defined by IEEE-519. 2012-08-01T00:00:00Z http://10.9.150.37:8080/dspace//handle/atmiyauni/649 Title: Harmonic Mitigation of Fluctuating Non Linear Load in a Grid connected Photovoltaic system Authors: Shah, Chandni C.; Vyas, Rucha N.; Vora, Amee M. Abstract: This paper presents improvement in power quality in a grid connected with non conventional energy source and nonlinear load. Three phase shunt active filter is proposed for improvement in power quality. Harmonic are declining power quality which is to be filtered. Present day energy demand is very high and conventional energy sources are costly and pollute environment. Renewable source of energy are emerging with new technology. This paper presents the model of PV panels connected with voltage source inverter, which are stepped up by transformer and is fed to the grid. Here Shunt active filter is implemented with voltage source inverter and dc link capacitor. Synchronous reference frame method is implemented for current control in shunt active filter. Filter can efficiently respond to sudden change in load is depicted in this paper. THD is not much affected with sudden change in load. Active power transfers from PV connected inverter to the grid through transformer. 2016-06-01T00:00:00Z