Author : Preethi Priya K 1
Date of Publication :7th July 2016
Abstract: The Proposed design topology has numerous attractive (useful) features such as higher efficiency since photovoltaic array is utilized efficiently, compact size as only three switches are used in the inverter circuit, low cost, simpler control circuit. A combination of Sinusoidal Pulse Width Modulation (SPWM) and Square wave is used for switching the inverter circuit. To control SPWM duty cycle and to regulate instantaneous ac output current from the inverter and to stabilize the output as fast as possible, a closed loop control circuit is employed. The proposed design is mathema-tically modeled in MAT Lab Simulink and PSIM. Finally, the simulation results are presented to verify the viability of the proposed single stage three-switch buck-boost inverter for gridconnected PV application.
Reference :
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