Indian Journal of Science and Technology

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This paper deals with using buck boost converter principle for producing AC voltage from PV array. It uses simple buck boost converter with switches, to invert D.C. in one single stage. The filter inductor is added to get a near sinusoidal waveform with low THD. The buck boost chopper initially boosts up the DC voltage from PV array to required level. The operation is similar to buck boost chopper. Then this voltage is converted to AC using switches and filters. Both the operation of stepping up and conversion takes place simultaneously thus forming a single stage converter system.
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