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首页> 外文期刊>Power Electronics, IET >Enhanced rotor field-oriented control of multiphase induction machines based on symmetrical components theory
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Enhanced rotor field-oriented control of multiphase induction machines based on symmetrical components theory

机译：基于对称分量理论的多相感应电机转子磁场定向增强控制

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摘要

Fault-tolerant capability greatly promoted the application of multiphase machines on safety-critical occasions, and fault-tolerant control strategies are required to suppress the torque ripples. Based on the generalised symmetrical components (SCs) theory, a general expression of the independent SCs is derived during the fault-tolerant operation of symmetrical multiphase machines in this study, and coefficients of the four basic rotating components in the general expressions are calculated for specific open-circuit conditions. Then the bidirectional rotating proportional-integral controllers are designed to control all the rotating components in each SC. Considering control loops for all the independent SCs, an enhanced rotor field-oriented control fault-tolerant strategy is proposed for symmetrical multiphase induction machines (IMs) with any phase number m. Furthermore, additional rotating current controllers in the first SC control loop are added to reduce the low-order current harmonics during the fault-tolerant operation. Experimental evaluations in terms of the transient, dynamic and harmonic performances on both five-phase and nine-phase IM drive platforms are provided to verify the effectiveness of the proposed fault-tolerant strategy.
机译：容错能力极大地促进了多相电机在安全关键场合的应用，因此需要采用容错控制策略来抑制转矩脉动。本文基于广义对称分量理论，推导了对称多相电机在容错运行过程中独立分量控制器的一般表达式，并针对具体情况计算了四个基本旋转分量的系数。开路条件。然后设计双向旋转比例积分控制器来控制每个SC中的所有旋转分量。考虑到所有独立SC的控制回路，针对相数为m的对称多相感应电机（IM）提出了一种增强的转子磁场定向控制容错策略。此外，在第一SC控制回路中添加了附加的旋转电流控制器，以减少容错操作期间的低阶电流谐波。提供了针对五相和九相IM驱动平台的瞬态，动态和谐波性能的实验评估，以验证所提出的容错策略的有效性。

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