Learning and Current Prediction of PMSM Drive via Differential Neural Networks

Wenjie Mei, Xiaorui Wang, Yanrong Lu, Ke Yu, Shihua Li

Abstract: Learning models for dynamical systems in continuous time is significant for understanding complex phenomena and making accurate predictions. This brief presents a novel approach utilizing differential neural networks (DNNs) to model nonlinear systems, specifically permanent magnet synchronous motors (PMSMs), and to predict their current trajectories. The efficacy of our approach is validated through experiments conducted under various load disturbances and no-load conditions. The results demonstrate that our method effectively and accurately reconstructs the original systems, showcasing strong short-term and long-term prediction capabilities and robustness. This brief provides valuable insights into learning the inherent dynamics of complex dynamical data and holds potential for further applications in fields such as weather forecasting, robotics, and collective behavior analysis.