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Analytical modeling of electric drives for vehicle traction control systems

机译:车辆牵引力控制系统电驱动的分析模型

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Wheel-torque control bandwidth in vehicle dynamics model is crucial in evaluating optimal tracking ability of tire slip and in analysis of control system stability. Electric drives' control dynamics are influenced by timing of digital control events, e.g. by sampling instant of motor currents. Reflecting this timing in drive analytical models is therefore important for analysis of vehicle traction systems. The paper considers five various transfer-function models including issues of digital control events timing. The aim of the paper is to compare the accuracy of the models in representing dynamics of a Permanent Magnet Synchronous Motor (PMSM) drive. Bode characteristics of the analytical models are compared to these of a reference model. The comparison is made for three commonly used cases of PMSM current sampling. Applicability of presented models has been discussed and frameworks to use specific models have been indicated.
机译:车辆动力学模型中的车轮扭矩控制带宽对于评估轮胎滑移的最佳跟踪能力以及控制系统稳定性的分析至关重要。电驱动器的控制动态性受数字控制事件定时的影响,例如通过采样电动机电流瞬间。因此,在驾驶分析模型中反映此时序对于分析车辆牵引系统很重要。本文考虑了五种不同的传递函数模型,包括数字控制事件计时的问题。本文的目的是比较模型在表示永磁同步电动机(PMSM)驱动器动力学方面的准确性。将分析模型的波特特征与参考模型的特征进行比较。比较了三种常用的PMSM电流采样情况。已经讨论了所提出模型的适用性,并指出了使用特定模型的框架。

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