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Dynamic Cost Function Based Predictive Torque Control for Permanent Magnet Synchronous Motor Without Using Weighting Factor

机译:不使用加权因子的基于动态成本函数的永磁同步电动机预测转矩控制

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As a heuristic control method, model predictive controls have received more and more attentions in the region of power drives in the last few years. To overcome the drawbacks of the conventional direct torque control (DTC) methods for permanent magnet synchronous motor, predictive torque control (PTC) methods have been studied by several researchers. However, weighting factors have to be used in the conventional PTC system, which is difficult to design. To eliminate the effects of the weighting factor on the PTC, in this work, a weighting factor removing method is presented. In this method, both the torque and the stator flux control errors are transformed into dynamic per-unit values, which are the same order of magnitude. Next, a new dynamic cost function is proposed on the basis of the two dynamic per-unit values, which doesn't require weighting factor any more. Thus, a PTC strategy without using weighting factor is established. Moreover, simulation studies are carried out to validate the effectiveness of the presented method.
机译:作为一种启发式控制方法,模型预测控制在最近几年中已在动力驱动领域受到越来越多的关注。为了克服永磁同步电动机的传统直接转矩控制(DTC)方法的缺点,一些研究人员已经研究了预测转矩控制(PTC)方法。但是,在传统的PTC系统中必须使用加权因子,这很难设计。为了消除加权因子对PTC的影响,本文提出了一种加权因子去除方法。在这种方法中,转矩和定子磁链控制误差都被转换成动态的单位值,它们的大小相同。接下来,在两个动态单位值的基础上提出了新的动态成本函数,该函数不再需要加权因子。因此,建立了不使用加权因子的PTC策略。此外,进行了仿真研究以验证所提出方法的有效性。

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