Digital Simulation of an Interline Dynamic Voltage Restorer for Voltage Compensation
Abstract
The Dynamic Voltage Restorer (DVR) provides an advanced solution for voltage sag/swell problems. The voltage-restoration process involves real-power injection into the distribution system. The
Interline DVR (IDVR) proposed in this paper provides a way to compensate the voltage sag/swell caused in a feeder. The IDVR consists of several DVRs connected to different distribution feeders in the power system sharing common energy storage, where one DVR in the IDVR system works in voltage-sag/swell compensation mode while the other DVR in the IDVR system operate in power-flow control mode. The modelling and simulation of single phase IDVR system using Sinusoidal Pulse Width Modulation (SPWM)
technique for voltage sag and swell conditions and three phase IDVR using Space Vector Pulse width modulation (SVPWM) technique for voltage sag condition are presented. Closed loop control for voltage
sag and swell for a simple IDVR systems are modeled and simulated using MATLAB software. The simulation results are presented to demonstrate the effectiveness of the proposed IDVR system.
Interline DVR (IDVR) proposed in this paper provides a way to compensate the voltage sag/swell caused in a feeder. The IDVR consists of several DVRs connected to different distribution feeders in the power system sharing common energy storage, where one DVR in the IDVR system works in voltage-sag/swell compensation mode while the other DVR in the IDVR system operate in power-flow control mode. The modelling and simulation of single phase IDVR system using Sinusoidal Pulse Width Modulation (SPWM)
technique for voltage sag and swell conditions and three phase IDVR using Space Vector Pulse width modulation (SVPWM) technique for voltage sag condition are presented. Closed loop control for voltage
sag and swell for a simple IDVR systems are modeled and simulated using MATLAB software. The simulation results are presented to demonstrate the effectiveness of the proposed IDVR system.
Keywords
Interline Dynamic Voltage Restorer (IDVR), Interline Power Flow Controller (IPFC), Sinusoidal Pulse width modulation (SPWM), Space Vector Pulse width modulation (SVPWM), Total Harmonic Distortion (THD).
