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首页> 外文会议>International Symposium on Power Electronics, Electrical Drives, Automation and Motion >On-line Identification of Induction Machine Rotor (Parameters) in Speed Sensorless Operation based on Saliency Extraction
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On-line Identification of Induction Machine Rotor (Parameters) in Speed Sensorless Operation based on Saliency Extraction

机译：基于显着性提取的无速度传感器运行中的感应电机转子（参数）在线识别

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摘要

This study presents a new online rotor resistance/temperature detection technique for the utilization in speed sensorless machine control. Accurate estimation of induction machines rotor resistance is very important to ensure high dynamic operation as well as precise torque production. The technique proposed is based on analysis and exploitation of inherent machine saliencies. More particularly, the angle of the saturation saliency can be used to monitor the rotor resistance. For exploitation of the machine saliencies, a transient voltage pulse excitation method was accomplished. The operating point dependent properties of the saturation saliency are identified during commissioning of the speed sensorless control. Then properties that are independent of temperature are used as a reference for the rotor resistance identification. A signal processing structure is set up to tune a fundamental wave model of the machine thus identifying the actual parameter value of rotor resistance. This structure is thus able to track the parameter value under low speed operation and changing rotor temperature. Measurement results are presented to verify the accuracy of the proposed method by comparing estimated and sensor-based values of torque, speed, slip and temperature.
机译：这项研究提出了一种新的在线转子电阻/温度检测技术，用于无速度传感器的机器控制。准确估计感应电机的转子电阻对于确保高动态操作以及精确的扭矩产生非常重要。所提出的技术基于对固有机器显着性的分析和利用。更具体地，饱和显着性的角度可以用于监测转子电阻。为了利用机器的显着性，完成了一种瞬态电压脉冲激励方法。在无速度传感器控制的调试过程中，将确定饱和显着性的取决于工作点的属性。然后将与温度无关的特性用作识别转子电阻的参考。设置信号处理结构来调整电机的基波模型，从而识别转子电阻的实际参数值。因此，该结构能够在低速运行和改变转子温度的情况下跟踪参数值。通过比较扭矩，速度，滑差和温度的估计值和基于传感器的值，提出了测量结果，以验证所提出方法的准确性。

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