Power Quality Problem Mitigation by using IDVR with SPWM (Sinusoidal Pulse Width Modulation) and SVPWM (Space Vector Pulse Width Modulation) Techniques

Voltage sag is a common and undesirable power quality phenomenon in the distribution systems which put sensitive loads under the risk. An effective solution to mitigate this phenomenon is to use dynamic voltage restorers and consequently, protect sensitive loads. Four basics compensation methods were proposed in the research community to eliminate the voltage sags and minimize the voltage disturbances at load side. This paper provides a review of those voltage compensation strategies with detailed discussions and comparisons to highlight their advantages and disadvantages. This paper describes the performance and efficiency of interline dynamic voltage restorer (IDVR) depends upon the control technique. Control technique plays a very important role in DVR. Space vector pulse width modulation (SVPWM) and sinusoidal pulse width modulation are two distinct control technique have been presented in this paper depending upon the performance and characteristics. Among these two techniques SVPWM finds the most effective technique because of easier digital realization and reduction of total harmonic distortion (THD) created by rapid switching inherent to these algorithm. The approach of this paper to the implementation of SVPWM and SPWM in IDVR and these methods investigated through the computer simulation by using MATLAB software.