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首页> 外文期刊>IEEE Transactions on Industrial Electronics >Model-Free Predictive Current Control for Interior Permanent-Magnet Synchronous Motor Drives Based on Current Difference Detection Technique
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Model-Free Predictive Current Control for Interior Permanent-Magnet Synchronous Motor Drives Based on Current Difference Detection Technique

机译：基于电流差检测技术的内部永磁同步电动机驱动器的无模型预测电流控制

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摘要

A model-free predictive current control (PCC) of interior permanent-magnet synchronous motor (IPMSM) drive systems based on a current difference detection technique is proposed. The model-based PCC (MBPCC) of IPMSM requires knowledge of parameters such as resistance, $q$-axis inductance, and extended back EMF. This paper develops a new model-free approach that alleviates the need for excessive prior knowledge about the system and only utilizes the stator currents as well as the current differences corresponding to different switching states of the inverter. Despite the salient difference of the proposed approach, it adopts a measure similar to that in the MBPCC approach to obtain the next switching state of the inverter by minimizing a cost function. It is noteworthy that the proposed method is easy to implement due to its simplicity and free of any multiplication operation. For comparison purposes, a digital signal processor, TMS320LF2407, is used to execute the two aforementioned current control techniques. Several experimental results show that the proposed method can significantly improve the current-tracking performance.
机译：提出了一种基于电流差检测技术的室内永磁同步电动机（IPMSM）驱动系统的无模型预测电流控制（PCC）。 IPMSM的基于模型的PCC（MBPCC）需要了解一些参数，例如电阻， $ q $ 轴电感，以及扩展回电动势。本文开发了一种新的无模型方法，该方法可以减轻对系统的过多了解，并且仅利用定子电流以及与逆变器不同开关状态相对应的电流差。尽管提出的方法存在显着差异，但它采取的措施与MBPCC方法类似，可通过最小化成本函数来获得逆变器的下一个开关状态。值得注意的是，所提出的方法由于其简单性并且没有任何乘法运算而易于实现。为了进行比较，数字信号处理器TMS320LF2407用于执行上述两种电流控制技术。实验结果表明，该方法可以显着提高电流跟踪性能。

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