Design and Implementation of Reactive Power Management for Solar Photovoltaic Inverters in Low Voltage Distribution Systems

Abstract

In the distribution system, reactive power places a vital role. Even if reactive power is not beneficial, it helps to keep the system
stable by controlling the voltage. Because inverters are power adapters, they are important in light of rising pollution and the depletion of traditional fossil fuels. Solar is the best option when compared to hydro, tidal, wind, and other renewable energy
sources. We employ Photo Voltaic Inverters (PVI) in this work, which operate using solar energy. The design and implementation of reactive power management for photovoltaic inverters in low voltage distribution systems is the main concept of this paper. In general, solar PVs (Photo Voltaic) are connected to grids to coordinate the system's voltages. We utilize PV inverters because solar energy does not remain constant throughout the seasons. Maximum power point tracking is a method is used it can absorb surges in reactive power and minimize voltage fluctuations, as well as inject reactive power when it's needed to keep
the voltage stable. This suggested approach is implemented using the Arduino ATMEGA328 microcontroller and tested in a hardware configuration. The results suggest that this can be used to sustain voltage under varied solar producing situations, and the photovoltaic inverter can be utilized to reduce voltage fluctuation.