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首页> 外文期刊>Energy Conversion, IEEE Transactions on >An Improved Direct Decoupled Power Control of Doubly Fed Induction Machine Without Rotor Position Sensor and With Robustness to Parameter Variation
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An Improved Direct Decoupled Power Control of Doubly Fed Induction Machine Without Rotor Position Sensor and With Robustness to Parameter Variation

机译：无转子位置传感器且参数变化的鲁棒性的双馈感应电机直接去耦功率控制的改进

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摘要

In this paper, coupling between active and reactive powers in conventional direct power control (DPC) strategies is analyzed and a new direct DPC method for doubly fed induction machine without rotor position sensors is presented. Coupling analysis is done on an improved DPC strategy with rotor flux controllers in the stator reference frame. The presented control strategy is done by controlling the rotor flux in the grid flux reference frame. The rotor flux command is calculated using a predicted stator flux, the stator current command, and the stator resistance. Moreover, the rotor position is estimated by comparing measured and estimated values of the rotor current. Furthermore, to reduce the method's sensitivity to the parameter inaccuracies, the mutual inductance of the machine is updated during the machine operation by the error between the magnitudes of the measured and estimated values of the rotor current.
机译：本文分析了常规直接功率控制（DPC）策略中有功功率和无功功率之间的耦合，并提出了一种新的无转子位置传感器的双馈感应电机直接DPC方法。耦合分析是在改进的DPC策略下进行的，在定子参考系中使用转子磁通控制器。提出的控制策略是通过控制电网磁通参考系中的转子磁通来完成的。使用预测的定子磁通，定子电流指令和定子电阻来计算转子磁通命令。此外，通过比较转子电流的测量值和估计值来估计转子位置。此外，为了降低该方法对参数误差的敏感性，在电机运行期间，通过转子电流的测量值与估计值的大小之间的误差来更新电机的互感。

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