IMPLEMENTATION OF SOLAR BASED FULL BRIDGE INVERTER WITH PWM TECHNIQUES

Abstract

This project focuses on the design, simulation, and implementation of a solar-based full bridge inverter utilizing Pulse Width Modulation (PWM) techniques to efficiently convert DC power generated from solar panels to AC power. The full bridge inverter topology is chosen for its high efficiency, low harmonic distortion, and ability to handle high power ratings, making it suitable for grid integration and powering AC loads. The increasing demand for clean and sustainable energy has led to the rapid development of solar photovoltaic (PV) systems. Solar energy is one of the most reliable and environmentally friendly renewable energy sources. However, photovoltaic panels generate direct current (DC), whereas most household appliances and electrical systems require alternating current (AC). An efficient inverter is required to convert DC power into AC power for practical applications. The system consists of a solar panel array, a DC-DC converter for maximum power point tracking (MPPT), a full bridge inverter, and a control circuit employing PWM techniques. The PWM control strategy is designed to regulate the output voltage and minimize Total Harmonic Distortion (THD), ensuring a high-quality sinusoidal output. The project involves simulating the inverter circuit using simulation software, implementing a control strategy using a microcontroller or DSP, and testing the system with a solar panel input. The results demonstrate the effectiveness of the proposed system in achieving efficient and reliable power conversion, highlighting its potential for renewable energy applications. To improve the quality of the output voltage, PWM control techniques are used to generate switching signals for the inverter switches. The PWM technique helps in reducing harmonic distortion and produces a near sinusoidal output waveform. By controlling the pulse width of the switching signals, the inverter output voltage and frequency can be effectively regulated. This results in improved efficiency and better power quality. The proposed system converts the DC power obtained from a solar source into AC power suitable for operating electrical loads. The design focuses on achieving stable output voltage, reduced harmonic distortion, and efficient energy conversion. Simulation and practical implementation demonstrate the effectiveness of the full bridge inverter with PWM control in renewable energy applications.