Battery-Side Control in Dual-Winding Active Magnetic Energy Harvester Supplying a Constant Power DC Load

This paper presents a control strategy for a Dual-Winding Active Magnetic Energy Harvester (D-AMEH) designed to supply a constant power DC load while safely charging a battery. By modulating the power transfer window on the battery side, the system dynamically regulates power flow through a digital controller operating in three modes: Maximum Power Point Tracking (MPPT), Constant Current (CC), and Constant Voltage (CV). This control method ensures efficient energy extraction and battery protection under varying power line conditions. The proposed method is validated through PSIM simulations, demonstrating robust operation across different current amplitudes and battery states.