Solar Powered BLDC Drive with Hybrid Energy Storage System Using Zeta Converter

摘要

The increasing importance of renewable sources in the field of automotive sector encourages the use of solar photovoltaic (PV) system powered brushless DC motor (BLDC) drives. To overcome the limitations associated with conventional DC-DC converters, zeta converter is used as power processing stage in this paper to optimize power processing. The extraction of maximum power from solar PV system is done by providing switching pulses to zeta converter through incremental conductance (INC) maximum power point tracking (MPPT) algorithm. Integration of hybrid energy storage system (HESS) is employed to maintain constant voltage across the BLDC motor drive despite of variation in power output of solar PV system. A dual loop control strategy is employed for power management between solar PV system and HESS. The performance of the proposed system for variation in irradiation levels and load torque is demonstrated using MATLAB/Simulink. The real-time validation of the proposed controller is done through the Xilinx system generator platform interfaced with Zynq ZC-702 FPGA kit.