Fault-tolerant predictive current control with two-vector modulation for six-phase permanent magnet synchronous machine drives
Fault-tolerant predictive current control with two-vector modulation for six-phase permanent magnet synchronous machine drives
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DOI：
10.1049/iet-epa.2017.0331
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发表时间：
2017-09
影响因子：
1.7
通讯作者：
Hanxiao Lu;Jian Li;R. Qu;Donglin Ye
中科院分区：
文献类型：
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作者：
Hanxiao Lu;Jian Li;R. Qu;Donglin Ye
多相电机和驱动器由于具有容错能力而受到研究人员的关注。模糊控制集模型预测控制（FCS-MPC）已被引入到多相调速系统故障后的运行中，具有动态响应快的上级优势。然而，传统的FCS-MPC一直困扰着低开关频率和随之而来的电流纹波。本研究提出一种容错双向量预测控制（FT-TVPC），利用一个零电压向量，在每个采样周期的主动向量调制。故障后的机器和驱动器的模型是在原始相帧中获得的目的是实现各种控制模式与不同的参考电流。通过一组实验验证了该控制方法对改善电流质量的有效性。作为交换，逆变器的平均开关频率增加。结果还表明，不同的控制模式的影响不大，但工作条件有很大的影响性能的改善。
Multiphase machines and drives are attractive to researchers due to the capability of fault tolerance. Finite-control-set model predictive control (FCS-MPC) has been introduced to the post-fault operation of multiphase drives and is superior with rapid dynamic response. However, conventional FCS-MPC is always troubled with low switching frequency and the consequent current ripples. This study proposes a fault-tolerant two-vector predictive control (FT-TVPC) that utilises a zero voltage vector to modulate with the active vector in each sampling period. The post-fault model of the machine and the drive is obtained in original phase frame with the purpose of achieving various control modes with different reference currents. A group of experiments are carried out and proves the effectiveness of the proposed control technique on improving the current quality. The average switching frequency of the inverter increases in exchange. The results also demonstrate that different control modes have little influence but working conditions have a great impact on the improvement of performance.