Passivity-Based Control for Speed Regulation in Permanent-Magnet Linear Motors

J. Yang, N. Cheung, J. Wu, and J. Pan (PRC)


passivity-based control, linear AC servo system, adaptive control


: A speed regulation method with passivity based control (PBC) for a linear direct-drive AC servo system is presented. The friction and force ripple are effectively minimized by designing a feedback controller with adaptability. Simulation verifies that the proposed control scheme not only suppresses the friction and force ripple problem of permanent-magnet linear synchronous motor (LPMSM), but also makes the direct-drive system with strong robustness to parameter variations and external disturbances.

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