Grid-integrated Photovoltaic System with Reactive and Active Power Capability

The incorporation of sustainable energy sources, such as wind and solar electricity, into the contemporary power grid has presented several new management and stability issues. This paper aims to provide sustainable, efficient, and dependable power generation and distribution while taking into account the erratic and unpredictable nature of renewables. Real power control, often referred to as active power control, is the process of controlling electrical output from clean energy sources to match demand. In order to maximize power extraction from the photovoltaic (PV) array, the Perturb and Observe (P&O), a maximum power point tracking (MPPT) technique is employed to continually track and alter the duty cycle for sending switching pulses to the boost converter. A two-level inverter facilitates the AC-DC conversion with pulse-width modulation (PWM) control. A phase-locked loop (PLL) system is employed as well to synchronize the PV system at particular phase angles and frequencies with the grid. To guarantee the provision of reactive as well as active energy under a variety of operating circumstances, a specialized control circuit is meticulously built. Efficient active power control is essential to maintain grid stability and prevent frequency deviations. Reactive power control is equally crucial, as it manages voltage levels and ensures that the power system remains within permissible voltage limits. Utilizing reactive power control devices, such as capacitors and reactors, and advanced control algorithms, grid operators can maintain the system's voltage profile and minimize losses.