![]() The proposed design employs a single-stage switch mode buck converter and a single-stage switch mode boost converter. ![]() In this paper, the design of a single stage buck and boost converters has been presented for photovoltaic inverter applications. In order to overcome this limitation, transformer can be replaced by buck and boost converters thereby making a transformer-less inverter which will greatly reduce the THD and enhance the efficiency. In conventional inverters, implementation of a transformer greatly enhances the Total Harmonic Distortion (THD) which is counted to have a negative impact on the inverter output. HIGHLIGHTS Due to the lack of uninterrupted electricity facility in the rural area of Bangladesh, a Diesel-based water pump is used which is quite expensive and not environment friendly To mitigate the aforementioned problem, nowadays solar-based pumping system attracts significant attention The Proposed Forward converter and 3-phase sinusoidal pulse-width modulation (SPWM) inverter-based system can be an optimum solution regarding price, environment, and continuous supply issues GRAPHICAL ABSTRACT This model can be a good solution considering the unavailability, high price and environmental issues of fuel-based power supply. The conventional Diesel-based system not only pollutes the environment but also the total of capital investment and maintenance cost is more than 3 times higher than the proposed Forward converter and 3-phase sinusoidal pulse-width modulation (SPWM) inverter-based system. Forward converter based proposed system has a better total harmonic distortion (THD) of 0.087 with different output voltage as required. The T-LCL filter is introduced to reduce the voltage ripple to a tolerance level before being fed to the motor. Switching circuit for 3-phase inverters is simulated in Power Sim (PSIM) which maintains the smooth operation of the water motor. Output from the solar cell is converted to stable high DC voltage by incorporating a single stage forward converter. Due to the continuous reduction of price of electrical and electronic components related to solar panel, solar based pumping system has become the most economically viable option to mitigate this problem related to larger rural community. The paper proposes a standalone model to run a 3-phase motor in such condition. ![]() ![]() To ensure continuous water supply for irrigation and other household activities in rural Bangladesh, where the supply of uninterrupted electricity is hardly available all the time and mostly irrigation is done by Diesel-based water pump. Supply of water for irrigation and household use is not adequate in rural Bangladesh during dry season. ![]()
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