Design and Implementation of Analog Controller Based Single Phase Full Bridge Inverter for Photovoltaic Applications

Abhishek Ranjan, Sunil Jalutharia, HARSH GARG, Nitin Gupta


This paper presents a low-cost design of the analog controller for the photovoltaic driven single-phase inverter to generate desired output voltage. The hardware set-up mainly consists of an inverter and an analog controller. The developed controller controls the output voltage of the inverter using SPWM (Sinusoidal Pulse Width Modulation) technique. The inverter, which is designed using Metal-Oxide-Semiconductor Field Effect Transistor (MOSFET) as a switch, generates high-quality output with reduced ripple content and less filtering requirement, making the whole setup cost-effective and efficient. A gate driver circuit is also employed to provide isolation between the inverter and the analog controller. The closed loop analog controller for the photovoltaic driven inverter is implemented and tested for various loads. In all these cases, the output voltage waveforms are of high quality with a lesser number of lower order harmonics. In this way, the paper presents a low-cost design of the inverter that can be used for low-power domestic applications.

Citation: Ranjan, A., Jalutharia, S., GARG, H., and Gupta, N. (2018). Design and Implementation of Analog Controller Based Single Phase Full Bridge Inverter for Photovoltaic Applications. Trends in Renewable Energy, 4, 102-113. DOI: 10.17737/tre.2018.4.3.0069


Analog Controller; H-Bridge Inverter; Sinusoidal Pulse Width Modulation (SPWM); Metal-Oxide-Semiconductor Field Effect Transistor (MOSFET); Gate Driver

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