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Investigation Of The Performance Index Of 3.5kva/48v Power Inverter
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CHAPTER ONE
INTRODUCTION 1.1 Background to the Study
Electric
power interruptions are quite common in every place, especially after a
heavy down pour or a severe storm. To counter this power outage, a
search has been to find a reliable and economical alternative source of
electricity. Although this kind of project has been dealt with for quite
a number of time but the fact still remains that an improvement needs
to be done. This in essence makes the project topic “Investigation of
the performance index of 3.5KVA/48V inverter†purposeful and
resourceful.
An inverter is a device or an electronic that
converts or inverts a direct current into a conventional alternating
current. A power inverter is a great tool used to run household / office
appliances, where there is no electricity. The input voltage and
frequency of the inverter may be fixed or it may vary depending on its
application. Inverters finds several applications of which are the
valuable speed, alternating current motors, uninterrupted power supply
etc. They can be used as the front stage of dc to dc converter. Standby
inverters are mostly used to provide emergency supply to the main
frequency (50Hz). In the event of main failure, the inverter immediately
operates with no loss of waveform. This unique ability makes it related
to an automatic change over switch but it differs in a way in that it
has a battery, which stores energy when the mains is on and gives out
energy when the mains is off while the automatic change over switch
operates on contactor (open and close).
There are many types
of inverter as described in chapter 2, but they all have the same
principle of operations and it all depends on the component used,
whether with a thyristor or a bipolar junction transistor for switching
the current ON/OFF. The need for man to prevent his activities from
being interrupted in order not to render it incomplete which may
subsequently become an unfinished job (loss of files in the computer
when there is a sudden power outage) has motivated engineers across the
globe to design a device which will be more economical, durable and
efficient.
It is pertinent to note that in a well organized company
in a developing country like Nigeria, where a lot of transactions are
made, if there is an epileptic power supply, the flow of transaction
will greatly be hindered and there will be no open ground for the infant
companies to spring up and wax great. Power should not be an
obstruction between companies and their maximum profits, this in essence
makes the use of a power inverter relevant and recommended to all and
sundry. Hence, the need for the investigation of the performance index
of various inverters comes to play. And this helps to determine which
inverter is more efficient, portable, durable, and cost effective.
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ABSRACT - [ Total Page(s): 1 ]The initial cost of the power inverter system is significant higher compared to the conventional source of power. As a result, there is need for the performance evaluation of various power inverters in order to determine the cost efficiency of the power inverter as an alternative source of power. The aim of the present study is to investigate the performance index of 3.5KVA/48V inverters for domestic source of electric power supply. Four types of inverters (Mercury, Safer Power, Sinergy and Su-K ... Continue reading---
