EFFICIENT DUAL AXIS SOLAR TRACKER WITH H-BRIDGE SIWAKOTI INVERTER

Electrical And Elecronics Engineering

This paper concerns the design and realization of a solar tracking system oriented to the PV conversion panels.The proposed dual axis solar tracking system offers optimal energy conversion process of solar energy into electricity through appropriately orienting the PV panel in accordance with the real position of the sun. The mechanism of the experiment is based on a servo motor which is intelligently controlled by Arduino micro controller that moves prototype according to the inputs received from RTC clock.This project proposes a new single-phase H-Bridge transformerless inverter with common ground for grid connected photovoltaic systems (hereafter it is called ‘Siwakoti-H’ inverter). The inverter works on the principle of flying capacitor and consists of only four power switches (two reverse blocking IGBT’s (RB-IGBT) and two MOSFET’s), a capacitor and a small filter at the output stage.

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