The world demand for electric energy is constantly increasing and conventional energy resources
are diminishing and are at the edge of extinction, moreover their prices are rising. For all these
reasons , the need for alternative energy sources has become necessary and solar energy in
particular has proved to be a very promising alternative because of its easy availability and
pollution-free nature. Due to increasing efficiency , decreasing cost of solar panels and
improvement of the switching technology used for the power conversion , we are interested in
developing an inverter powered by pv panels that could supply stand-alone ac loads . Solar
panels produce direct currents (dc) and to use them in home and industrial appliances , we should
have ac output at certain required voltage level and frequency. Thus , solar inverter converts the
solar energy of sun into useful electrical energy (dc to ac).
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