A Novel Integration of Solar Fed Dynamic Voltage Restorer for Compensating Sag and Swell Voltage in Distribution System Using Enhanced Space Vector Pulse Width Modulation (ESVPWM)

摘要

This proposed work describes a novel optimal use of the system to be used for Photovoltaic (PV) based on Dynamic Voltage Restorer (DVR) voltage restoration, voltage regulation functions, and an active filter is represented. The power transmitting in the distribution system needs to be high quality of power to drive a load with efficiency. The most of the loads are non-linear loads. It causes the Total Harmonics Distortion (THD) in the system. These THD produces the system oscillation, capacitor overloading, drops in efficiency, voltage fluctuation, which create the poor operating performances of the consumer utilities. Essentially, when the load voltage is greater or lesser (sag and swell) than the actual voltage, the control system will analyses the demanded load voltage and it will be compensate by the solar-based DVR, which will improvise the energy consumption of the system. Technically those sag and swell voltage will be minimized with the help of DVR, but it needs advance control technique which will provide the effectiveness of the system. In this work, the Enhanced Space Vector Pulse Width Modulation (ESVPWM) is performing a proper switching pulse to the DVR inverter, which helps to improve the energy stabilization in the distribution system. The proposed DVR has additional benefits the operating voltage will observe from the solar PV which had perturb and observe (PandO) based Maximum power point Tracking (MPPT) system and will efficiently provide the DC power. The execution of solar Fed DVR is simulated under dynamic conditions with the various parameters like steady-state error, Efficiency, Total Harmonics Distortion (THD) in the load. All those conditions performed in MATLAB-SIMULINK 2017bsoftware.