Sensorless induction motor adaptive observer-backstepping controller: experimental robustness tests on low frequencies benchmark
Sensorless induction motor adaptive observer-backstepping controller: experimental robustness tests on low frequencies benchmark
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DOI：
10.1049/iet-cta.2009.0648
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发表时间：
2010-10
影响因子：
2.6
通讯作者：
D. Traore;J. D. León;A. Glumineau
中科院分区：
文献类型：
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作者：
D. Traore;J. D. León;A. Glumineau
在这项研究中，实验测试的一个基于逆变器的控制器方案，以驱动无传感器感应电动机（IM），即使在低频的情况下。结合磁场定向控制器和反推控制方法的优点，设计了一种新的鲁棒控制器来跟踪低频轨迹。使用积分反推技术消除静态误差，提高了控制器的鲁棒性，尽管不确定性和摄动。为了实现控制器，设计了一个自适应互联观测器来估计磁链、速度、负载转矩和定子电阻。定子参数的知识是至关重要的无传感器控制，特别是跟踪低速轨迹时，失去了可观性属性。基于李雅普诺夫理论的实际稳定性已被证明，以保证强一致的实际稳定性的闭环系统使用建议的切换器控制器计划。由于一个特定的无传感器IM基准的参考轨迹，在参数变化和干扰的存在下，即使是低频的情况下，鲁棒性属性进行验证的测试完成。
In this study, experimental tests for an observer-based controller scheme are given to drive a sensorless Induction Motor (IM) even for the low frequencies case. Combining the advantages of a field oriented controller with the backstepping control method, a new robust controller is designed to track low frequencies trajectories. The static errors are eliminated using an integral backstepping technique, improving the robustness properties of the controller in spite of the uncertainties and the perturbations. An adaptive interconnected observer is designed for estimating fluxes, speed, load torque and the stator resistance in order to implement the controller. The knowledge of the stator parameter is crucial for sensorless control in particular to track low-speed trajectories when the observability property is lost. Practical stability based on Lyapunov theory has been proved to guarantee the strongly uniformly practical stability of the closed-loop system using the proposed observer-controller scheme. The tests are completed thanks to the reference trajectories of a specific sensorless IM benchmark where the robustness properties are validated under parameter variations and in presence of disturbances even for the low frequencies case.