A State-of-The-Art on Power Quality Enhancement Techniques: Present Scenario and Future Challenges

Abstract

Supplying quality power to consumers have been of great concern for power researchers and utilities since last few decades. Power quality issues include voltage sag/swell mitigation, harmonics reduction, load balancing, voltage flicker elimination, and fault current limiting. Various control strategies have been suggested in the literature for power quality improvement. Custom power devices are quite useful in power quality enhancement. Research on power quality enhancement has mostly concentrated on offline studies. Efforts are required to be made in power quality enhancement of real-time systems. In this paper, a survey has been presented on power quality enhancement techniques in the present scenario. The article also suggests an investigation of the role of smart metering and Phasor Measurement Units (PMUs) for power quality enhancement of real-time systems in intelligent grid architecture.