An Adaptive-Gain Sliding Mode Observer for Sensorless Control of Permanent Magnet Linear Synchronous Motors

作者：Yang, Chunyu^*; Ma, Tingting; Che, Zhiyuan; Zhou, Linna

来源：IEEE Access, 2018, 6: 3469-3478.

DOI：10.1109/ACCESS.2017.2787699

• Adaptive-gain algorithm
• PMLSM
• sensorless control
• sliding mode observer

In this paper, a novel adaptive-gain sliding mode observer (SMO) is designed for sensor-less control of permanent magnet linear synchronous motors (PMLSMs). By the proposed adaptive-gain algorithm, the gain can dynamically adapt to a changing operation condition of the PMLSMs and reach an appropriate value infinite time. Stability of the SMO is proved by using Lyapunov stability theory. Compared with the traditional SMO, the adaptive-gain SMO can improve the control precision, especially when the operation condition is not invariant. Simulation results are given to show the advantages of the proposed method.

• 出版日期2018
• 单位中国矿业大学（北京）