Performance Enhancement of Solar PV Fed BLDC Motor Drive Using Fuzzy Logic Control with Zeta Converter

This paper proposes a simple, cost effective and efficient brushless DC (BLDC) motor drive for solar photovoltaic (SPV) array fed water pumping system. A zeta converter is utilized in order to extract the maximum available power from the SPV array. The integration of solar photovoltaic (PV) systems with Brushless DC (BLDC) motors offers an efficient and ecofriendly solution for applications such as water pumping and electric drives. However, improving dynamic performance parameters like starting response, overshoot, and settling time remains a challenge. This paper presents a performance enhancement strategy for a solar PV-fed BLDC motor drive by employing a Fuzzy Logic Controller (FLC) in conjunction with a Zeta Converter. The Zeta converter provides a continuous input current and voltage regulation, making it suitable for solar energy systems. The proposed FLC replaces the conventional PI controller to enhance the dynamic performance, particularly under varying irradiance conditions. Simulation results show that the FLC achieves smoother motor starting, reduced overshoot, and faster settling time compared to the PI controller, validating its effectiveness in renewable-powered drive systems.The proposed water pumping system is designed and modeled such that the performance is not affected under dynamic conditions. The suitability of proposed system at practical operating conditions is demonstrated through simulation results using MATLAB/ Simulink.