Deadbeat Predictive Current Control Based on Linear Extended State Observer for Dual-Winding PMSM

The dual-winding permanent magnet synchronous motor (PMSM), renowned for its high efficiency and high reliability, is widely utilized in high-precision servo systems, aerospace drives, new energy equipment, and other applications requiring demanding performance. Traditional vector control primarily employs PI control to regulate the current loop. However, PI control exhibits significant limitations in high-precision and high-performance applications, including insufficient dynamic response and poor anti-interference capability. To address these issues, this paper introduces a deadbeat predictive current control (DPCC) method, which features rapid dynamic response and high control accuracy. Furthermore, to resolve its dependency on motor parameters and inherent delays, a linear extended state observer (LESO)-based deadbeat predictive current control is proposed. The proposed control scheme was validated through Matlab/Simulink simulations, demonstrating significant improvements in dynamic response performance under various operating conditions. Compared to traditional PI control, the anti-interference capability and robustness against disturbances such as motor parameter variations were substantially enhanced.