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基于快速空间矢量调制算法的三电平直接转矩预测控制系统

, PP. 35-41

Keywords: 多电平变换器,直接转矩控制,异步电动机,预测控制,空间矢量脉宽调制

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Abstract:

提出一种新颖的基于转矩预测控制+快速空间矢量调制算法的三电平中点钳位式逆变器供电的异步电动机直接转矩控制方案。系统中首先使用转矩预测控制算法得到所需施加的定子参考电压矢量,然后基于非正交60°坐标系,利用空间矢量脉宽调制算法选择基本矢量合成所需的参考电压矢量,该算法在基本矢量的选取和作用时间计算方面十分简单。针对电机运行时有功功率的输出导致直流侧电容电压失衡问题,采用先预测、后控制的方式稳定中点电位。仿真结果验证了该控制算法的可行性,三电平直流侧中点电位不平衡、输出电压dv/dt得到了有效地抑制,并获得良好的电机动态和稳态调速特性。

References

[1]  Wu Bin. High-power converters and AC drives[M]. Hoboken, New Jersey, USA: IEEE Wiley Press, 2006.
[2]  Rodríguez José, Lai Jih Sheng, Peng Fangzheng. Multilevel inverters: a survey of topologies, controls, and applications[J]. IEEE Transactions on Industrial Electronics, 2002, 49(4): 724-738.
[3]  李永东, 肖曦, 高跃. 大容量多电平变换器——原理. 控制. 应用[M]. 北京:科学出版社, 2006.
[4]  李永东, 侯轩, 谭卓辉. 三电平逆变器异步电动机直接转矩控制系统(I)——单一矢量法[J]. 电工技术学报, 2004, 19(4):34-39.
[5]  Li Yongdong, Hou Xuan, Tan Zhuohui. Direct torque control of inductor motor fed by three level inverter (I)-single vector method[J]. Transactions of China Electrotechnical Society, 2004, 19(4): 34-39.
[6]  Sergio B M, Josep B, Dushan B, et al. The nearest three virtual space vector PWM-a modulation for the comprehensive neutral-point balancing in the three-level NPC inverter[J]. IEEE Power Electronics Letters, 2004, 2(1): 12-14.
[7]  Zhang Yongchang, Zhao Zhengming. Study on capacitor voltage balance for multilevel inverter based on a fast SVM algorithm[J]. Proceedings of the CSEE, 2006, 26(18): 71-76.
[8]  Wei Sanmin, Wu Bin, Li Fahai, et al. A general space vector PWM control aigorithm for multilevel inverters[C]. IEEE APEC’2003, Florida, USA, 2003: 562-568.
[9]  Busquets Monge S, Ortega J D, Bordonau J, et al. Closed-loop control design for three-level three-phase neutral-point-clamped inverter using the optimized nearest three virtual-space-vector modulation[C]. Power Electronics Specialists Conference, 37th IEEE, Jeju, Korea, 2006: 1-7.
[10]  林垒, 邹云屏, 王展, 等. 一种具有中点平衡功能的三电平异步电机直接转矩控制方法[J]. 中国电机工程学报, 2007, 27(3):46-50.
[11]  Lin Lei, Zou Yunping, Wang Zhan, et al. A DTC algorithm of induction motors fed by three-level inverter with neutral-point balancing control[J]. Proceedings of the CSEE, 2007, 27(3): 46-50.
[12]  Toro Xavier del, Calls Salvador, Jayne Marcel G, et al. Direct torque control of an inductor machine using a three-level inverter and fuzzy logic[J]. IEEE Transactions on Industrial Electronics, 2004, 2: 923-927.
[13]  Celanovic N, Boroyevich D. A fast space-vector modulation algorithm for multilevel three-phase converters[J]. IEEE Transactions on Industry Applications, 2001, 37(2): 637-641.
[14]  张永昌, 赵争鸣. 基于快速空间矢量调制算法的多电平逆变器电容电压平衡问题的研究[J]. 中国电机工程学报, 2006, 26(18):71-76.

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