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基于反电动势与磁链正交性的异步电机电压模型积分改进算法

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Keywords: 磁链观测,电压模型,正交性,积分算法,异步电机

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Abstract:

在异步电机高性能控制方案中,电机磁链的准确观测是其核心问题之一。基于电压模型的磁链观测算法因具有中高速区参数鲁棒性高等优点而得到了广泛应用。然而,在实际使用时,电压模型的纯积分运算会因积分初始时刻的问题和积分量中微小的直流偏置而导致错误结果,进而影响了电机高性能控制的实现。针对该问题,本文在详细分析反电动势与磁链的各组成分量的基础上,提出一种基于反电动势与磁链正交性的积分改进算法。该算法将基于正交性获得的信息通过PI调节器得到反电动势的校正分量,再通过校正分量修正反电动势进而得到正确的积分结果。理论分析表明,在一定条件下,积分结果中的直流偏置可以完全得到消除。本文通过仿真和实验,验证了该改进积分方法良好的性能,也验证了关于完全消除积分结果中的直流偏置的理论分析的正确性。

References

[1]  Kim Jang Hwan, Choi Jong Woo, Sul Seung Ki. Novel rotor-flux observer using observer characteristic function in complex vector space for field-oriented induction motor drives[J]. IEEE Transactions on Industry Applications, 2002, 38(5): 1334-1342.
[2]  孙大南, 刘志刚, 刁利军, 等. 牵引电机矢量控制转子磁场准确定向实时校正策略[J]. 电工技术学报, 2011, 26(9): 116-123.
[3]  Sun Danan, Liu Zhigang, Diao Lijun, et al. Accurate rotor flux orientation real-time correction strategy for vector control of traction motors[J]. Transactions of China Electrotechnical Society, 2011, 26(9): 116-123.
[4]  Colin Schauder. Adaptive speed identification for vector control of induction motors without rotational transducers[J]. IEEE Transactions on Industry Applications, 1992, 28(5): 1054-1061.
[5]  张星, 瞿文龙, 陆海峰. 一种能消除直流偏置和稳态误差的电压型磁链观测[J]. 电工电能新技术, 2006, 25(1): 39-43.
[6]  Zhang Xu, Qu Wenlong, Lu Haifeng. A novel compensation method of stator flux estimation in low speed region[J]. Advanced Technology of Electrical Engineering & Energy, 2006, 25(1): 39-43.
[7]  Zerbo M, Sicard P, Ba Razzouk A. Accurate adaptive integration algorithms for induction machine drive over a wide speed range[C]. Proceedings of IEEE International Electric Machines and Drives Conference, San Antonio, 2005: 1082-1088.
[8]  Silveira A W F, Andrade D A, Bissochi C A, et al. A comparative study between three philosophies of stator flux estimation for induction motor drive[C]. Proceedings of IEEE International Electric Machines and Drives Conference, Antalya, 2007: 1171-1176.
[9]  Bose B K, Patel N R. A programmable cascaded low-pass filter-based flux synthesis for a stator flux-oriented vector-controlled induction motor drive[J]. IEEE Transactions on Industrial Electronics, 1997, 44(1): 140-143.
[10]  Comanescu Mihai, Xu Longya. An improved flux observer based on PLL frequency estimator for sensorless vector control of induction motors[J]. IEEE Transactions on Industrial Electronics, 2006, 53(1): 50-56.
[11]  Shin Myoung Ho, Hyun Dong Seok, Cho Soon Bond, et al. An improved stator flux estimation for speed sensorless stator flux orientation control of induction motors[J]. IEEE Transactions on Power Electronics, 2000, 15(2): 312-318.
[12]  Tsugutoshi Ohtani, Noriyuki Takada, Koji Tanaka. Vector control of induction motor without shaft encoder[J]. IEEE Transactions on Industry Applications, 1992, 28(1): 157-164.
[13]  Hu Jun, Wu Bin. New integration algorithms for estimating motor flux over a wide speed range[J]. IEEE Transactions on Power Electronics, 1998, 13(5): 969-977.
[14]  Holtz J, Quan Juntao. Drift- and parameter- compensated flux estimator for persistent zero-stator- frequency operation of sensorless-controlled induction motors[J]. IEEE Transactions on Industry Applications, 2003, 39(4): 1052-1060.
[15]  Wang Gaolin, Xu Dianguo, Yu Yong, et al. Improved rotor flux estimation based on voltage model for sensorless field-oriented controlled induction motor drives[C]. Proceedings of Power Electronics Specialists Conference, 2008: 1887-1890.
[16]  马小亮, 魏学森. 数字矢量控制和直接力矩控制调速系统中的电压模型[J]. 电工技术学报, 2004, 19(3): 65-69.
[17]  Ma Xiaoliang, Wei Xuesen. Voltage model of digital vector control and direct torque control systems[J]. Transactions of China Electrotechnical Society, 2004, 19(3): 65-69.
[18]  Zhang Xu, Qu Wenlong. A novel compensation method of stator flux estimation in low speed region[C]. Proceedings of International Conference on Electrical Machines, 2003: 623-626.
[19]  夏德钤, 翁贻方. 自动控制理论[M]. 北京: 机械工业出版社, 2008.

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