Double-Integral Synergetic Control with Integral Backstepping for Robust PMSM Performance

This paper proposes a robust control scheme for Permanent Magnet Synchronous Motors (PMSMs) that integrates integral backstepping with a novel double-integral synergetic controller. By incorporating a double integral term into the synergetic control design, the proposed method achieves rapid disturbance rejection and ensures robust performance under parameter variations and external disturbances. The strategy also provides smooth dynamic response and enhanced stability, making it suitable for high-performance PMSM applications such as electric vehicle drives. Simulation and experimental results validate the proposed approach, demonstrating improved torque regulation, reduced steady-state error, and enhanced stability without chattering when compared to two existing approaches in the literature: Interconnection and Damping Assignment Passivity-Based Control (IDA-PBC), and the Integral Backstepping Double-Integral Sliding Mode Controller (IBC-DISMC).