SMC-PWM of a dynamic performance voltage restorer

Many loads are affected by various power quality issues, including voltage sags/swells, imbalance, harmonics distortion, and short interruption. These loads include a wide variety of susceptible devices to voltage fluctuations. This study developed and implemented a unique feeding device recognized as Dynamic Voltage Restorer (DVR) in an industrial building model. DVRs are frequently used to protect essential loads by reducing the negative impact of voltage variations. The energy-free DVR derives its energy from the transmission line through a rectifier. On the other hand, rectifiers can inject current harmonics and increase HDMs into the system, negatively impacting critical loads. Consequently, the emphasis of this work is on operating a DVR with a unit power factor rectifier topology. Furthermore, the purpose of a Sliding Mode Controller Pulse Width Modulation (SMC-PWM) to record line power and sustain power quality is considered. The simulation results are displayed following the completion of the analysis in MATLAB/Simulink.