Design of Single Phase Agri-Inverter Using Center- Tapped Transformer Topology

This paper focuses on the design of an inverter utilizing a center-tapped transformer topology. In today's power industry, energy generation is one of the most vulnerable aspects due to inefficiencies in conversion processes. Conventional power sources, such as diesel motors, produce significant carbon emissions and pollute the environment extensively. In contrast, solar energy, as a renewable source, is experiencing rapid growth, particularly in DC-AC inverters for agricultural applications. Solar grids can effectively compete with other power generation industries. This paper proposes a 785.4W inverter capable of driving a 1 HP single-phase induction motor, offering two distinct operational modes. The designed inverter minimizes the number of switches, reducing conduction losses and component count. Furthermore, it delivers a 220V single-phase output, matching the power quality of conventional grids, with a center-tapped transformer providing a rated output current of 3.57A and an efficiency of 98.71%, while maintaining very low total harmonic distortion. Additionally, the inverter can step up or step down the output voltage based on demand.