Abstract

This paper presents an investigative work about the direct speed control (DSC) of interior permanent magnet synchronous motor (IPMSM) based on finite control set model predictive control (FCS-MPC). A compensation is applied to the speed prediction model because of the unknown load torque and varied rotary inertia. And a multi-constrained cost function with dynamically adjustable weight factors is designed to realize speed tracking and guarantee the currents operating points lay on q-axis in d-q axis frame. The effectiveness of the proposed strategy is evaluated through simulations.

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