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首页> 外文期刊>Industrial Electronics, IEEE Transactions on >Open-Phase Fault-Tolerant Direct Torque Control Technique for Five-Phase Induction Motor Drives
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Open-Phase Fault-Tolerant Direct Torque Control Technique for Five-Phase Induction Motor Drives

机译：五相感应电动机驱动器的开相容错直接转矩控制技术

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摘要

Direct torque control (DTC) has been widely used as an alternative to traditional field-oriented control (FOC) methods for three-phase drives. The conventional DTC scheme has been successfully extended to multiphase drives in recent times, using hysteresis regulators to independently track the desired torque and flux in symmetrical five-phase induction machines (IMs). The fault-tolerant capability of multiphase drives is an interesting intrinsic advantage for safety-critical applications, where recent research has demonstrated the effectiveness of FOC schemes to perform ripple-free postfault operation. In spite of the utility of DTC methods in normal operation of the multiphase machine, no extension to manage the postfault operation of the drive is found in the literature. In this paper, a novel fault-tolerant DTC scheme is presented. The performance of the proposed method is experimentally validated in a five-phase IM drive considering an open-phase fault condition. Provided tests analyze steady and transient states, including the transition from pre- to postfault operation. Obtained results prove the interest of the proposal, which ensures the open-phase fault-tolerant capability of DTC-controlled five-phase IM drives.
机译：直接转矩控制（DTC）已被广泛用作三相驱动器的传统磁场定向控制（FOC）方法的替代方法。传统的DTC方案最近已成功地扩展到多相驱动器，使用磁滞调节器独立地跟踪对称五相感应电机（IM）中的所需转矩和磁通。对于安全性至关重要的应用，多相驱动器的容错能力是一个有趣的内在优势，在最新的研究中，该研究证明了FOC方案在执行无纹波后故障操作方面的有效性。尽管在多相电机的正常运行中使用了DTC方法，但是在文献中没有找到管理驱动器的故障后运行的扩展。本文提出了一种新颖的容错DTC方案。考虑到缺相故障条件，该方法的性能在五相IM驱动器中进行了实验验证。提供的测试分析稳态和瞬态，包括从故障前到故障后的过渡。所获得的结果证明了该提议的重要性，该提议确保了DTC控制的五相IM驱动器的开相容错能力。

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