Design and Construction of a 500 Watt Power Invereter

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  • Topic: Alternating current, Transformer, Direct current
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DESIGN AND CONSTRUCTION OF A 500 WATT POWER INVERETER

BY

NAME HERE
REGISTRATION NUMBERE HERE

DEPARTMENT OF ELECTRICAL/ELECTRONIC ENGINEERING
FACULTY OF ENGINEERING
CROSS RIVER UNIVERSITY OF TECHNOLOGY
CALABAR CROSS RIVER STATE, NIGERIA.

TABLE OF CONTENT
Abstract

The urgent need for an alternative source of power supply to meet the power requirement of the Average home in Nigerian, particularly during times of total blackout, forms the basis for which the development of this cost-effective, reliable and tropicalised Power Inverters was undertaken. The developed Inverter is required to provide a 500VA of an alternating current (AC) output power at a frequency of 50Hz from a 12V direct current (DC) battery source. Before the project development commenced, a thorough investigation was carried out on the different designed technology currently in use.

Chapter One: General Introduction
1.0 Introduction
1.1 General Concept
1.2 Scope of work
1.3 Aims and Objective
1.4 Methodology

CHAPTER TWO: Literature Review
2.0 Introduction
2.1 The Classical Inverter system
2.1.1 Standby and On-Line Inverter Systems
2.1.2 Operational Differences Between Standby and On-Line Inverter Systems 2. 2 Other Inverter Topologies
2.2.1 The On-Line Without Bypass Topology
2.2.2 The Standby On-Line Hybrid Topology
2.2.3 The Standby-Ferro Topology
2.2.4 The Line-Interactive Ups Topology
2.2 Output Regulation

CHAPTER THREE: Methodology
3.0 Introduction
3.1 circuit Approach
3.1.1The Charging system
3.1.2 Inverter Control Circuit
3.1.3 Low Battery Indication Circuit
3.1.4 Battery Deep Discharge cut off Circuit
3.1.5 Power Output Stage
3.2 Complete Circuit Diagram
3.3 Design Calculations
3.4 Definition of Discrete Components Used
3.4.1 Resistors
3.4.2 Capacitors
3.4.3 Diodes
3.4.4 Voltage Regulator
3.4.5 The SG3524
3.4.6 Power MOSFET
3.4.7 Relay
3.4.8 Piezo Buzzer
3.4.9 Transformer
3.4.5 Silicon controlled Rectifier

CHAPTER FOUR: Hardware, Software implementation and construction 4.0 Introduction
4.1 Hardware implementation
4.1.1 Designing of the Schematic and Layout Diagram
4.1.2 Making of the Printed circuit board Using Press-n-Peel Transfer Film 4.2 Construction and assembling
4.3 Testing and result
4.4 Project Monetary Costing

CHAPTER FIVE
5.1 Conclusion
5.2 Problems Encountered
5.3 Recommendations
Reference

Chapter One
General Introduction

1.0 INTRODUCTION

An inverter is an electrical device that converts direct current (DC) to alternating current (AC); the converted AC can be at any required voltage and frequency with the use of appropriate transformers, switching, and control circuits. It also maintains a continuous supply of electric power to connected equipments or load by supplying power from a separate source e.g. battery when utility power is not available. It is inserted between the source of power (typically commercial utility power) and the load it is protecting. Static inverters have no moving parts and are used in a wide range of applications, from small switching power supplies in computers, to large electric utility high-voltage direct current applications that transport bulk power. Inverters are commonly used to supply AC power from DC sources such as solar panels or batteries.

1.1 GENERAL CONCEPT

The inverter project is presented here will produces a square wave output with very low noise level. It will drive an equipment/load, which normally operates on 230V, 50Hz AC. The Changeover period for this system is less than 1 millisecond so that no interruption in operation of appliances like a computer or continuity of the play mode of a VCR and TV is caused. The concept is when mains is present and is within the specified limits, the same is fed to the load. At the same time, battery is charged. If mains voltage goes below 170 volts (or mains power fails) or above 270 volts,...
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