Three Phase Dual Output Inverters for Photo Voltaice System with Three Switch Legs

Sakthivel K; B. Vaidianathan

Abstract: In this paper, three reduced switch count topologies are introduced for independently supplying two three-phase ac loads with one inverter for solar based power generation is proposed. Using a new three-switch leg structure recently introduced and implemented in three-phase converters. The proposed nine-switch topologies are introduced; two modes of equal frequency and different frequency operation each of its own distinctive characteristics are considered for them and their pulse width modulation schemes are elaborated. Comprehensive analyses of power loss profile and output waveform properties are conducted via simulation for the proposed inverters, and the results are compared with full-bridge and half-bridge inverters. To assess the performance of the proposed inverter topologies, working prototypes are built, and the experimental results are provided.

Keywords: photovoltaic system, three phase supply, dc to dc boost converter, xor gate, two ac load output