A DECISIVE EVALUATION OF VOLTAGE SAG/SWELL USING DYNAMIC VOLTAGE RESTORER (DVR) WITH PV ENERGY SOURCE

Today photovoltaic (PV) generation is developing increasingly fast as a renewable energy source. The PV generator is connected to the boost DC-DC converter, PV array to generate the maximum power to the grid with change weather conditions. Now a day, the problem of voltage sags and swells create a severe impact on sensitive loads in industries supported by active compensation scheme with DG Application. Due to which load shedding and over voltages might occur achieve the grid synchronization. This paper deals with the PI controller fed DVR which achieve the desired frequency with respective magnitude and time domain specifications simultaneously. Voltage sag and swell is big problem in power system. Sensitive load has a severe impact on itself due to voltage sag and swell. Dynamic Voltage Restorer (DVR) is a power custom device used in power distribution network. The Dynamic Voltage Restorer (DVR) is fast, flexible and efficient solution to voltage sag problem. The DVR is designed for protecting the whole plant with loads in the range of some MVA. The DVR can restore the load voltage within few milliseconds. This paper discussed abc to dq0 base new control algorithm to generate the pulse. The simulation results are obtained through MATLAB/SIMULINK software