Performance Improvement of power system with Power Quality Features Using Hybrid (Solar Wind) Energy.

摘要

This paper presents analysis and improvement of power quality (voltage sag, swell and harmonics) performance of smart grid connected inverter used in distributed generation .The structure of the designed controller consists of outer power with harmonic control loop ,middle voltage control loop and inner current control power loop for real and reactive power control in dq reference frame .The developed controller controls the real and reactive power supplied by the DG(Distributed Generation) at the PCC(Power Controlled Converter). The controller is designed to deliver current at unity power factor at PCC. An increase in reactive power demand and harmonics at PCC due to change of load and grid impedance variation, would affect the system voltage at PCC. Renewable energy resources (RES) are being increasingly.......