Chaos Control of Permanent Magnet Synchronous Motor via Adaptive Sliding Mode Variable Structure Scheme

When system parameters falling into a certain area or under some working conditions, the permanent magnet synchronous motor (PMSM) will appear chaos phenomenon, which threatens the secure and stable operation of drive system. So this paper proposes a robust adaptive sliding mode control strategy aiming at the complex chaotic behavior of PMSM. Using the sliding mode control technique, a time varying surface is constructed. Then an adaptive gain of the robust control law is established considering uncertainties and external interference in PMSM. So the phenomenon of chaos in PMSM system will be eliminated using proposed controller. Finally, stability analysis will be given based on Lyapunov stability theory. Simulation results demonstrate the effectiveness of the proposed adaptive sliding mode control scheme.

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