A Novel Integrated Power Quality Conditioner for BLDC Drive Applications

Abstract

In recent years brushless DC motors (BLDC) are the research hotspot in speed precision and household applications due to its high reliability, simple frame, high efficiency, fast dynamic response, compact size, low maintenance, etc. It is an electronically commutated motor. The active power control approach is used to compensate voltage sag/swell and is integrated with theory of power angle control of UPQC to coordinate the load reactive power between the two inverters. Since the series and shunt inverter simultaneously delivers active and reactive powers, this concept is named as PQC. The topology uses a capacitor in series with the interfacing inductor of shunt active filter to match dc-link voltage requirement. Detailed design aspects of the series capacitor and VSI parameters have been discussed in this work. The obtained results are presented to demonstrate an improved power quality (PQ) at AC mains of the BLDC Motor drive system. The proposed topology enables PQ to compensate voltage sags, voltage swells and current harmonics with a reduced DC-link voltage without compromising its compensation capability by implementing. The proposed concept can be implemented to Brushless