电流感应电动机的全局稳定自适应磁场定向控制器

Proceedings of the 1998 American Control Conference. ACC (IEEE Cat. No.98CH36207) Pub Date : 1998-06-21 DOI:10.1109/ACC.1998.707078

T. Ahmed-Ali, F. Lamnabhi-Lagarrigue, R. Ortega

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引用次数: 5

摘要

提出了一种在线调整电流感应电机间接磁场定向控制律转子时间常数估计值的方法。结果表明，当电机负载转矩为零且转子时间常数变化范围的先验不确定性小于100%时，所得到的方案具有全局指数稳定性。在许多实际情况下，后者是一个合理的假设。当负载转矩不等于零时，速度误差在有限时间内进入一个残差集，其大小与负载转矩成正比。

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A globally-stable adaptive field-oriented controller for current-fed induction motors

We propose a procedure to adjust online the rotor time constant estimate of an indirect field-oriented control law for current-fed induction machines. The resulting scheme is shown to be globally exponentially stable provided the load torque on the motor is zero and the a priori uncertainty on the range of variation of the rotor time constant is smaller than 100%. The latter is a reasonable assumption in many practical cases. We also show that, when the load torque is different from zero, the speed error enters in finite time a residual set whose size is proportional to the load torque.

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来源期刊

Proceedings of the 1998 American Control Conference. ACC (IEEE Cat. No.98CH36207)

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