A Novel Power Quality Improvement of Matrix Converter Based Upfc

Abstract

This research shows how to use an improved direct power control approach (DPC) to make 3-phase matrix converters work as unified power flow controllers (UPQCs). Matrix converters (MCs) convert direct ac/ac power without dc energy storage connection characteristics; as a result, the Matrix Converter-with-UPFC (MC-UPFC) has reduced cost and volume, reduced capacitor power losses, and improved performance and stability. For an MC-UPFC dynamic representation consisting of one of the input filters, theoretical analysis of direct power control (DPC) with sliding mode control arrangements is recognised. As a consequence, ac supply reactive power may be directly regulated by selecting an appropriate matrix converter switching state that ensures good steady-state and dynamic responses, resulting in decreased volume and cost, as well as lower capacitor power losses and increased dependability. As a result, line active and reactive powers, as well as ac supply reactive power, may be directly regulated by selecting the right matrix converter operating state, ensuring high-quality steady-state and dynamic response conditions. DPC controllers' experimental outputs for MC-UPFC show a decoupled active and reactive power regulator with 0% steady-state tracking error and rapid reaction times. The experimental results of the advanced DPC-MC assure closer responses without producing overshoot and no steady-state faults, acquiring no cross-coupling in steady-state and dynamic approachment, when compared to a Matrix Converter-UPFC by active and reactive power linear modulators with a modified Venturing very high-frequency PWM controller.