Project Abstract

Abstract
This research project focuses on the design and construction of an inverter, a crucial electrical device that converts direct current (DC) into alternating current (AC). Inverters play a vital role in numerous applications, such as solar power systems, uninterruptible power supplies (UPS), and electric vehicles. The primary objective of this study is to develop a reliable and efficient inverter prototype that can meet the power conversion needs of various electronic devices and systems. The project begins with a comprehensive review of inverter technologies, including the different types of inverters available in the market and their respective characteristics. By understanding the fundamental principles of inverter operation, the research aims to identify key design parameters and performance metrics essential for creating a high-quality inverter. The design phase involves selecting appropriate components such as power transistors, capacitors, and control circuitry based on the desired power output and efficiency requirements. Special attention is given to the power semiconductor devices to ensure optimal performance and reliability of the inverter under different load conditions. The control circuit is designed to implement pulse width modulation (PWM) techniques for regulating the output voltage and frequency of the inverter accurately. The construction phase involves assembling the selected components on a printed circuit board (PCB) according to the finalized design specifications. Careful attention is paid to the layout and interconnection of components to minimize parasitic effects and ensure stable operation of the inverter. The prototype undergoes rigorous testing and performance evaluation to verify its functionality, efficiency, and reliability. Experimental results demonstrate the successful operation of the inverter prototype in converting DC input power to AC output power with minimal harmonic distortion and high efficiency. The inverter design is optimized to achieve low total harmonic distortion (THD) and high power conversion efficiency, making it suitable for various applications requiring clean and stable AC power. Overall, this research project contributes to the advancement of inverter technology by presenting a detailed design and construction process for developing a high-quality inverter prototype. The findings and insights gained from this study can guide future research in improving inverter performance, reliability, and efficiency for a wide range of applications in the field of power electronics.

Project Overview

INTRODUCTION

BACKGROUND OF THE STUDY

All modern engineering system includes certain aspects of control system at some point in their broadcast scenes, control engineering and the associated theory are concerned with the means of making system to behave in a desired may. The system on this thesis is a DC " AC inverter which is an apparatus used in the conversion of direct current (DC) to alternating current (AC). In our contry today, this equipment is not all that in use not because it is not important but because people never give it a thought as per the construction and design. It is meant for use with a 12volts leadacid battery of it’s in a car for example a suitable output voltage of 240volts AC obtainable.

This output voltage of 240volts AC can be used for powering small electrical appliances such as lights, electrical tools radio, soldering iron, fan etc. However, it is with mentioning that the DC generated with this appliance is nothing comparable to the AC generated by big generation duration. This appliance is therefore suitable for short time replacement for the real AC generation especially in the remote areas and it is install where electrical appliances are sold and the need might arise for it to be tested and certified good. Another main area where this equipment can be of great utility is in communication system. In a situation where there is a constant AC power supply failure example in offices DC " AC inverter is needed and such cases, inverter can be used as a source of light.

Most industries in the country do not make use of DC " AC inverter because the are through to be costly with respect to the task they perform. However, putting into consideration the task, this appliance can perform. It can be concluded that it is cheaper. The construction is simple, cheaper, easy to operate and portable. The usefulness of this device and the function cannot be over emphasized especially now that our country is passage through a very sensitive era in our power generating Authority (NEPA) has been dubbed NEVER EXPECT POWER ALWAYS. In these times when control and monitor of complex field operations have based in computer, a failure of AC, power supply to communication equipment means work stoppage and to some small scale industries a lot of economic and materials losses is avoidable.