Abstract:

The project aims to enhance quality of electricity in a solar PV system connected to a weak grid, which is critical to a nation's economy due to the increasing demand for power caused by population growth. However, poor quality power generation can be a problem. An estimator of the positive series using integrators management is suggested as a solution to this problem in order to enhance power quality. Even in unusual circumstances like sag/swell, dc offset, and voltage distortion, this control can extricate positive order elements from distorted and grid voltages that are not regulated. The system can produce a quick transient reaction by computing grid reference currents and unit templates based on the positive sequence components and applying a photovoltaic grid feedforward term. The dc-link power is adjustable changed to lower voltage source converter losses when there is a weak grid. According to MATLAB models, the integrator-based positive sequence estimator control scheme works well in a variety of strange conditions, like intermittent sun irradiation, imbalance, voltage sag, swell, dc offset, and voltage distortions. In conclusion, this project offers a practical method for enhancing quality of electricity in a solar PV system connected to a shaky grid using an integrator-based positive sequence estimator control. Simulation findings demonstrate satisfactory system performance in a variety of scenarios.

Description:

Photovoltaic(PV), VSC Controller, MPPT Controller, DC-DC Boost Converter