Article,

UPQC Based Power Quality Enhancement for PV System in Single Phase Distribution Network

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CENTRAL ASIAN JOURNAL OF MEDICAL AND NATURAL SCIENCE, 4 (5): 452-471 (September 2023)

Abstract

In order to get rid of voltage imbalances and voltage harmonics, a single-phase unified power quality conditioner (PV-UPQC) is discussed in this paper as a means of integrating photovoltaic systems into the grid. The current UPQC's DC-link voltage is insufficient to maintain a constant voltage. The proposed work combines the PV panel and UPQC. The boost converter runs the PV array in maximum power point tracking mode, which maximises power output. Matlab-Simulink is used to model the behaviour of PV-UPQC with nonlinear loads in the presence of varying irradiance and grid voltage fluctuations. To regulate photovoltaic (PV)-connected UPQC series and shunt inverters, a PLL-based control method is proposed. In addition to correcting for voltage and current fluctuations, the proposed controller can also detect phases and perfectly synchronise grids. The effectiveness and efficiency of PV-UPQC are studied through computer modelling.

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