International Journal on Science and Technology

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Volume 17 Issue 2
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Battery-Less Solar Irrigation System for Rural Bangladesh Using Buck–Boost Converter and PID Control

Author(s) Mr. Niaz Morshedul Haque
Country Bangladesh
Abstract This study proposes a battery-less solar-powered irrigation system for rural Bangladesh based on a Buck–Boost DC–DC converter and advanced control techniques. Conventional irrigation in rural areas often depends on diesel-driven pumps or battery-supported photovoltaic (PV) systems, leading to increased operational cost, maintenance complexity, and environmental impact. To overcome these limitations, a direct PV-fed DC motor drive without energy storage is developed, ensuring a simpler and more economical solution. The Buck–Boost converter is employed to regulate the fluctuating PV output and provide a stable supply to the irrigation motor under varying solar irradiance and temperature conditions. To enhance system performance, both Proportional Integral (PI) and Proportional Integral Derivative (PID) controllers are implemented for duty cycle control and output stabilization. The proposed system is modeled and analyzed using MATLAB/Simulink to evaluate its dynamic and steady-state behavior. Simulation results indicate that the battery-less configuration can maintain reliable motor operation under variable environmental conditions. Furthermore, comparative analysis reveals that the PID controller achieves superior voltage regulation, faster response, and reduced oscillations compared to the PI controller. The proposed approach offers a cost-effective, low-maintenance, and sustainable irrigation solution suitable for rural agricultural applications in Bangladesh.
Keywords Battery-less solar irrigation; photovoltaic (PV) system; Buck–Boost converter; PID control; solar water pumping; rural electrification; sustainable agriculture.
Field Engineering
Published In Volume 17, Issue 2, April-June 2026
Published On 2026-05-23
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