| 七相感应电机缺相时消除谐波的矢量控制研究 |
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| 引用本文： | 郭冀岭,肖 建,邱忠才. 七相感应电机缺相时消除谐波的矢量控制研究[J]. 计算机工程与应用, 2015, 51(19): 236-241 |
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| 作者姓名： | 郭冀岭 肖 建 邱忠才 |
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| 作者单位： | 西南交通大学 电气工程学院，成都 610031 |
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| 摘 要： | 七相感应电机因缺相运行具有代表性而受到关注。在缺[n]相情况下，电压矢量幅值及分布不均匀，获取严格的空间解耦模型及常规SVPWM较为困难，故建立了[d-q]基波子空间+（5-n）个谐波子空间的缺相简化模型，通过追加令谐波子空间电压为零的约束条件，提出一种通用性较强的消除定子谐波电流的改进型UVM矢量控制方法，用以获得缺相后转子磁链为圆形同时定子电流谐波最小的控制效果。由于在所缺相数较多时，系统转矩动态响应及定子电流的谐波消除效果受到PI调节参数影响，又采用了双模糊PI控制器分别对转矩调节器和定子电流谐波调节器进行改进。仿真结果表明了缺相简化模型及控制算法的正确性和有效性。
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| 关 键 词： | 七相感应电机 缺相故障 消除谐波 矢量控制 模糊PI |
Research on vector control of 7-phase induction motor under open-phase ;fault with harmonic current elimination |
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| GUO Jiling,XIAO Jian,QIU Zhongcai. Research on vector control of 7-phase induction motor under open-phase ;fault with harmonic current elimination[J]. Computer Engineering and Applications, 2015, 51(19): 236-241 |
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| Authors: | GUO Jiling XIAO Jian QIU Zhongcai |
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| Affiliation: | College of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, China |
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| Abstract: | The 7-phase IM has drawn more attention because of its typical operation performance under open-phase fault recently. Under open-phase fault circumstance, it’s difficult to get the rigorous decomposition model and conventional SVPWM because of the asymmetrical structure and vector distribution. So a simple model is adopted including one d-q fundamental wave subspace and （5-n） harmonic wave subspaces. To get a round shape rotor flux and minimized harmonic component of stator currents, a new vector control strategy is proposed with modified UVM for 7-phase IM under open-phase fault. Besides double fuzzy PI controller is designed to get better dynamic performance of electromagnetic torque and less harmonic component of stator currents. Simulation results verify the correctness of the model and the superiority of the control strategy. |
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| Keywords: | 7-phase induction motor open phase eliminate harmonic vector control fuzzy PI |
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