This paper proposes a current control method based on the state space model for magnetically coupled double three-phase interior permanent magnet synchronous motor (IPMSM). The proposed independent current control method modifies voltage reference using the calculated coupled components between the axes and between the windings by using the state space model. When the voltage reference saturates due to a sudden change in current reference, decoupling control between windings becomes insufficient. The proposed voltage limit method and anti-windup control then reduce the coupled components between windings even under voltage saturation. The effectiveness of the proposed control method was verified by conducting dynamic experiments. The proposed current control method has no overshoot and can effectively reduce oscillatory current due to magnetic coupling.
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