The Unified Power Quality Conditioner (UPQC) is a customer adjust device, which deals with the Power-Quality issues in the power distribution system. In the proposed topology allows UPQC to have a lower dc-link voltage without limiting its compensation capability. This topology also allows to maintain the dc-link voltage need of the series and shunt active filters of the UPQC. A simulation study of the suggested topology has been performed using Matlab/Simulink. In the extension for the proposed topology added with a multilevel inverter and the compensated DVR voltages. The load voltages after settlement are shown in the same determine. This clearly reveals the customized topology with multilevel inverter efficiency is better than the suggested topology with a less dc-link volts, decrease in switching function, and regular monitoring of referrals compensator voltages.
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