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Robust adaptive high order sliding-mode optimum controller for sensorless interior permanent magnet synchronous motors

机译:适用于无传感器内部永磁同步电动机的鲁棒自适应高阶滑模最优控制器

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摘要

In this paper, a robust nonlinear controller for sensorless interior permanent magnet synchronous motors (IPMSM) is designed to track a desired reference which is computed by using a maximum-torque-per-ampere strategy (MTPA). The proposed controller ensures finite-time convergence of sliding variables despite parameter uncertainties and unknown load torque. Furthermore, from the measurement of the currents and the voltages, a new analysis of the observability property is developed. Then, an adaptive interconnected observer is designed to estimate the angular velocity, the position, the load torque and the stator resistance. Using a Lyapunov approach, an analysis of the closed-loop system stability is given. Simulation results are presented to confirm the effectiveness of the proposed method.
机译:在本文中,设计了一种用于无传感器内部永磁同步电动机(IPMSM)的鲁棒非线性控制器,以跟踪所需的参考,该参考是通过使用最大每安培转矩策略(MTPA)计算得出的。所提出的控制器可确保尽管存在参数不确定性和未知的负载转矩,但仍可确保滑动变量的有限时间收敛。此外,根据电流和电压的测量,对可观察性进行了新的分析。然后,设计一个自适应的互连观察器以估计角速度,位置,负载转矩和定子电阻。使用李雅普诺夫方法,给出了闭环系统稳定性的分析。仿真结果表明了该方法的有效性。

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