Application of H-Bridge Converter Based Dynamic Voltage Restorer to Protect a Sensitive Load on Polluted Distribution Network

The growth in the use of power electronics has created a greater awareness of power quality. Power Quality (PQ) has been an issue is becoming increasingly pivotal in industrial electricity consumer’s point of view in recent times. PQ has become important, especially, with the induction of sophisticated load, so such type of problems can eliminate by using custom power devices. One of these modern devices is Dynamic voltage restorer (DVR), which is a more efficient and effective modern custom power device. This paper presents the analysis and design of three phase H-bridge converter based DVR for protect sophisticated load, from polluted distributed network. The main objective of this paper is to save sophisticated load, from non linear voltages, currents and avoid PQ problem like voltage sag, swell conditions, in addition to the phase angle jump. Modeling and simulation of proposed DVR are implemented in PSCAD/EMTDC platform.