Ultra-High Gain DC-DC Converter Driven PMSM for Green Energy Application

This paper presents a non-isolated DC-DC converter topology incorporating a switched inductor-switched capacitor module, designed for integration with a Permanent Magnet Synchronous Motor (PMSM) drive system. A three-phase 400 V AC motor typically requires an inverter with a DC Bus voltage of approximately 560 V DC. However, conventional battery sources operating within the 300–400 V range are insufficient to directly supply this voltage, necessitating a step-up stage to ensure proper motor operation. Without adequate voltage boosting, the inverter output remains below the required level, leading to reduced torque, compromised performance, or failure to initiate motor operation. To address this challenge, the study introduces a high-gain multi-port DC-DC converter featuring having a switched inductor-switched capacitor, optimizing efficiency with minimal component usage. This topology enables a significant voltage step-up while ensuring enhanced performance in PMSM-based drive applications. PMSMs are selected due to their superior dynamic response, efficient torque production, and precise speed regulation. The proposed converter undergoes performance evaluation under four-quadrant operation, including regenerative braking modes. Simulation results, conducted in MATLAB/Simulink, confirm the effectiveness of the converter in facilitating PMSM operation, particularly in battery charging scenarios during braking, demonstrating its potential for advanced electric drive applications.