High-order sliding mode observers and integral backstepping sensorless control of IPMS motor |
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Authors: | MA Hamida J De Leon |
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Affiliation: | 1. Ecole Centrale de Nantes, LUNAM University, IRCCyN UMR CNRS 6597, Nantes, France;2. FIME-UANL, Universidad Autonoma de Nuevo Leon, Universidad s/n, San Nicolas de los Garza, Mexico |
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Abstract: | This paper presents a robust high-order sliding mode interconnected observer and an integral backstepping controller for a sensorless interior permanent magnet synchronous motor. To limit the chattering phenomenon on the observed state, a super twisting algorithm is combined with an interconnected observer to design a new high-order sliding mode observer which will be used for multiple-input multiple-output systems. The proposed observer is used to estimate in finite time the rotor position, the speed and the stator resistance. Moreover, a robust nonlinear controller based on the backstepping algorithm is designed where integral actions are introduced step by step. This controller allows to track a desired reference which is computed by using a maximum-torque-per-ampere strategy. Simulation results are shown to illustrate the performance of the proposed scheme by using significant trajectories including the zero speed and under parametric uncertainties. |
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Keywords: | high-order sliding mode backstepping integral action sensorless control IPMSM |
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