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Project on "Solar Inverter-A New Concept".

Status- Work in Progress

                  ABSTRACT & ITRODUCTION

In recent years, the interest in solar energy has risen due to surging oil prices and environmental concern[9]. In many remote or

underdeveloped areas, direct access to an electric grid is impossible and a photovoltaic inverter system would make life much

simpler and more convenient[1]. With this in mind, this paper aims to design, build, and test a solar panel inverter. This inverter

system could be used as backup power during outages, battery charging, or for typical household applications. The key features of

the system are a true 50Hz, 230Vrms sinusoidal voltage output, a wide input range, and maximum power-point tracking (MPPT),

and a power output of up to 300W. The overall goal is to design this system while minimizing component costs. Although systems

with similar features already exist, many are prohibitively expensive for those people who stand to benefit the most[19]. In

addition, inverters in the lower price range typically lack the features mentioned above.

Keywords-Grid connection, Maximum Power point tracking, Buck converter, Boost converter, Half bridge inverter.

1. INTRODUCTION

The initial selection of this paper was motivated by the increased interest in renewable energy systems, which has been

fuelled by rising oil prices and environmental concern[3]. It is our belief that the marketplace needs a wider variety of

products that will utilize such systems for household applications. We also believe that the process of designing a solar

panel interface will be greatly beneficial to a power engineer in the rapidly expanding field of renewable energy

applications. The main objective of this paper is to design, build, and test a solar panel inverter. This inverter should be

low cost, as compared to other commercially available inverter system, flexible – utilizing a wide input voltage range for

various photovoltaic panels as well as providing a charge control option, and make optimal use out of any solar panels –

this is achieved by using a maximum power-point tracking (MPPT).