PV Array with PWM Inverter Implementation

In solar photovoltaic power generation systems, the PV array serves as one of the most critical components. The PV array converts solar energy into direct current (DC) electrical power. However, DC power cannot be directly utilized for most electrical applications, necessitating conversion to alternating current (AC) power. This conversion is achieved through an inverter. The primary function of the inverter is to transform DC electricity into AC electricity. Among various modulation techniques, PWM (Pulse Width Modulation) stands as one of the most widely employed methods in inverters. PWM regulates output voltage by controlling the switching operations of MOSFET transistors within the inverter circuitry. In practical implementation, PWM algorithms typically involve generating precise timing signals through microcontroller code to control MOSFET gate drivers, with duty cycle calculations based on desired output voltage specifications. Therefore, in solar photovoltaic systems, PV arrays and PWM inverters form two intrinsically interconnected components that work synergistically to deliver usable AC power.