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The Design And Construction Of 2kva Inverter
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CHAPTER ONE
INTRODUCTION
1.2 Background of the Study
An inverter is an electronics device or circuitry that changes direct current (D.C) to Alternating current [AC]. The device make used of an in–built automatic circuit to achieve a complete automation of the entire system. The input voltage, output voltage, frequency and overall power handling depend on the design of a specific device or circuitry.
An inverter is very important element that cannot be neglected in this Country as it is deeply fasten into the fabric of the society for the obvious reason of inadequate power supply. It is an important element in homes to power household devices like electric bulbs, electric cooker, refrigerator, television set e.t.c. It also finds applications in various places work/offices to power devices like air conditioners, computers e.t.c.
In spite of constant repair and efforts put forward by the stake holders in electricity industry to ensure stable power supply, yet the power generation and distribution across the country is very bad, low and it very far from being enough.
However power failure has resulted in people buying generators for their daily activities. Businesses are not functioning due to failure of power supply. These are the reason that make necessary of designing and construction of inverter and other standby system that can deliver maximum output power to the load.
Statistics have shown that the number of business that have been closed down simply because of power failure, cannot be over emphasized, so mankind need inverter seriously in other to restore technology development, business and medical controls. However the background of the study lies within the reason why the construction of inverter should be forwarded the factor that increase the quality of inverter marketability.
Finally, the success of this study will beneficial to the society. Mass production of inverters will lead to improve standard of living of the people and the nation will move forward in it pursuit of technology development (http://www.falana.tripid.com/tope/index.blog?entry id=195483copy).
1.2 PROBLEM OF STATEMENT
Faced with the problem of load power supply from supply authorities, noise pollution, air pollution, cost of the popular alternative, generator sets, there is need for a less noisy, pollution free and cheap solution to power problem. Then, this project is to provides a back-up and power by 220v A.C input and change to D.C sources to charge a 12v battery and change back to AC source with a reliable power supply of 2000VA output to power a standard house/offices.
1.3 AIM AND OBJECTIVE
The aim of this project is to design and construct a 2KVA inverter with an inbuilt charging system that take a 220V input that will be charged when there is supply from mains and change to D.C and later change back to A.C with the operation of inverter with output of 2000VA to power a standard offices/house.
The Objective are:
• To design and construct an inverter that will be able to power essential loads in a house
• To provide a noiseless source of electricity generation
• To provide a source of electricity power with low maintenance cost and zero fuel cost
• To design and construct an alarm circuit that beeps when the load on the inverter is beyond the inverter capacity.
CHAPTER ONE -- [Total Page(s) 2]
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ABSRACT - [ Total Page(s): 1 ]ABSTRACTThis project presents the design and construction of a DC to AC inverter system. It is designed to meet up with the power demand in the offices/homes in the absence of power supply from National Supply Authority.It is designed in such a way that it will take up to 12V DC from battery and inverts it to an output of 220V, 50Hz AC. It makes no noise during operation and not hazardous like carbon monoxide is generated to the surrounding. This is the feature makes it safe to used anywhere whe ... Continue reading---
TABLE OF CONTENTS - [ Total Page(s): 2 ]TABLE OF CONTENTTITLE PAGE CERTIFICATION DEDICATION ACKNOWLEDGMENTABSTRACT TABLE OF CONTENT CHAPTER ONEINTRODUCTION1.1 BACKGROUND OF THE STUDY 1.2 PROBLEM OF STATEMENT 1.3 AIM AND OBJECTIVE1.4 SCOPE OF THE PROJECT 1.5 METHODOLOGY1.6 MOTIVATION 1.7 LIMITATION OF THE PROJECTCHAPTER TWOLITERATURE REVIEW2.0 INVERTER 2.1 HISTORY OF INVERTER2.2.1 GENERAL FEATURES OF THE PROTECT2.2.1 POWER SUPPLY UNIT2.2.2 CHANGENG OVER UNIT 2.2.3 SWITCHING UNIT2.2.4 UNDER AND OV ... Continue reading---
CHAPTER TWO - [ Total Page(s): 2 ]CHAPTER TWOLITERATURE REVIEW2.0 INVERTER An enabling technology, power electronics does it job with intelligence, precision and efficiency. It used the smartness of advanced control technology with the efficient conversion of electric power into the precise from required to control a function or process. In a industrial and commercial products, it is gaining ground mostly visible among inverters which converts direct current (DC) into a single or poly phase AC voltage at a desire aptitu ... Continue reading---
CHAPTER THREE - [ Total Page(s): 9 ]The capacitance is thus, the number of coulumbs stored per unit voltage across the capacitor i.e.C= Where C is the capacitance in farads Q is the charge in coulumb V is the voltage across the capacitor in voltsFig 3..2 capacitor 3.1.3 DIODE A diode is a semi-conductor device which allow flowing of current in one direction. Diode is a device which can be either forward or reversed biased. It has a low resistance and is unidirectional. Diodes are va ... Continue reading---
CHAPTER FOUR - [ Total Page(s): 5 ]Ns = 3520/12=293 turnsTherefore Es = 240vNs/Np = Es/EpNs = (Np Es)/EpNs = 240 x 16 12Ns = 3840 = 320 turns 124.1.3 FREQUENCY DIVISION COUNTER This unit is made up of integrated circuit, it serve as a counter to divide the 100Hz signal generated into two equal part i.e 50Hz (Nigeria Standard), these divided frequency of 50Hz each is in the anti-phase and therefore are each alternating fed to the base of the MOSFET in the inverting stage.4.1.4 FREQUENCY UNIT The purpose of this proj ... Continue reading---
CHAPTER FIVE - [ Total Page(s): 1 ]CHAPTER FIVECONCLUSION AND RECOMMENDATION 5.1 CONCLUSIONThe basic objective of the project that were realized include the guarantee of the supply during the absence power from service authority, the elimination of power surges and energy management induction of bill amazed from fuel cost and generator maintenance. The inverter is more environmentally friendly, easier to operate and required very little maintenance compared to a generator.Through the project is efficient and reliable, it has so ... Continue reading---
REFRENCES - [ Total Page(s): 1 ]REFERENCESBEDOFORD,B.D, et al. Principle of inverter circuit New York, John Willey, (1964). David L.A. Modern UPS Servicing, Marc Dowell publishers, London, (22nd Edition) 2001.Manahar Lofia, Modern Digital Inverter-Introduction Servicing and Troubleshooting, (23rd edition)1996.OYETUNJI TOBI,S. (2015), construction of 2KVA inverter Electrical/Electronic Engineering Project Power Option HND II Finial Year, Unpublished.Tharaja B.L et al, A Textbook of Electrical Technology, S. Chand & Company Lt ... Continue reading---
