Performance of DVR Using Optimized PI Controller Based Gradient Adaptive Variable Step LMS Control Algorithm

A custom power device known as dynamic voltage restorer (DVR) has been investigated to operate a distribution system at its desired performance. The with voltage-related quality issues in the supply side addressed through this article using DVR. Four different grid disturbances, such sag, swell, unbalances, and distortions, have taken into account while testing DVR capability. controlled optimized proportional integral (PI) gains integrated gradient adaptive variable learning rate least mean square control algorithm. Adaptiveness of step-size LMS makes robust case dynamics system, which assures better Also, other major contribution is implementation optimization-based self-tuning PI proposed control. evaluation optimizer estimating presented terms response dc-link simulation work algorithms on done satisfactory results are found. For experimental validation, d-SPACE made Micro Lab Box used processor, both steady-state discussed for effectiveness.