Yadav, Vinod KumarMudgal, Yashvi2020-09-172020-09-172019-08-16Mudgal Y. And Yadav V.K.https://krishikosh.egranth.ac.in/handle/1/5810151439Investigating Confederated Three-Phase Solar Photovoltaic and Unified Power Quality Conditioner ConfigurationThe environmental protection with power generation of an acceptable level of reliability, quality and safety is the need of the modern generation. Recent advancement in technology which includes effective power production and simultaneous utilization of renewable energy resources. The rooftop installed Photovoltaic (PV) system has gained much popularity due to the great potential to supply clean energy with minimum impact on the environment. The PV energy sources have discontinuous nature which leads to voltage quality problems as well as the advancement of semiconductor tends to increase the level of current harmonic distortion. Power quality issues at load side are the most common problem which creates huge unbalance on transmission and generation side of the system. As the problems related to power quality is going to take newer dimensions power quality improvement technique of Unified Power Quality Conditioner is used in the proposed thesis. The energy supply from PV is transferred to the Unified Power Quality Conditioner (UPQC) for conditioning. Active Power Filter gives a promising solution to compensate for the adverse effects of harmonics and reactive power compensation by suitable control strategies. In UPQC, Shunt Active Filter is used to mitigate current harmonics while the Series Active Power Filter has been used to reduce the voltage interruptions. Integrating the photovoltaic array along with UPQC has an advantage of pollution-free energy generation along with the surety of high levels of power quality. Synchronous Reference Frame (SRF) is used as a control technique with hysteresis based current control to obtain switching signals in the shunt compensator while Phase Locked Loop (PLL) is used for series active power filter. To verify the objective of power quality, dynamic model of Confederated Three- Phase PV-UPQC analysis is simulated in MATLAB-Simulink software under different conditions. The performance evaluation shows that efficient results were observed and considered effective for the system. The MATLAB simulation results reveal that the designed Unified Power Quality Conditioner with photovoltaic array effectively mitigate the current and voltage harmonics and is in compliance with the IEEE519 recommended harmonic standards.EnglishThesis