Abstract:
Due to the advancement in the field of Photovoltaic System, different types of
transformerless inverter topologies are designed and implemented. So that Flying Capacitor based
transformerless inverter topology are selected for single phase and three phase AC load. In this
thesis we experimentally designed and implemented the prototype of 300Watt for single phase AC
load which are practically tested, and output waveforms are obtained which verified the desire
results. In Simulation, results of Flying capacitor based transformerless inverter is compared with
the results of conventional patent topologies such as HERIC and H-5 type inverter Topologies.
Selected topology utilizes minimal number of components, low total harmonic distortion (THD)
and zero common mode voltage and leakage current with low cost and size.
Maximum power point tracking is sizzling issue in solar photovoltaic world, By MPPT, tracking
efficiency is improved, response is high and well controlled to extract maximum power. We used
solar PV array, flying capacitor type inverter and induction motor with pump assembly for MPPT
based single phase single stage converter. Using perturb and observer(P&O) Algorithm, we draw
maximum power from PV array and maintain it at MPP irrespective of different irradiance and
variable load.
