Decoupling current control scheme for induction motors based on neutral system theory

被引：0
作者：
Pan Y.-D. [1 ]
Wang G.-F. [1 ]
机构：
[1] School of Automation, University of Science and Technology Beijing, Beijing
来源：
Kongzhi yu Juece/Control and Decision | 2020年 / 35卷 / 02期
关键词：
Decoupling control; Digital delay; Induction motor; LMI; Neutral controller;
D O I：
10.13195/j.kzyjc.2018.0757
中图分类号：
学科分类号：
摘要：
In the traditional system modeling of induction motors, the neglect of digital delay results in inaccurate modeling, which exacerbates the cross-coupling between the two currents in the current loop, leads to serious problems such as current distortion of the low-switching frequency drive system, system instability, etc. Using the neutral theory, a neutral-based current decoupling control method for induction motors is proposed, and a neutral current controller is designed. The current control method has the advantages of automatic parameter tuning, small coupling, fast response, and good robustness. The theory solves the influence of the digital delay problem on the control performance of the drive system by establishing an accurate mathematical model. The stability analysis of a neutral type time-delay system for induction motors is carried out. Simulation and experimental results show the feasibility of the designed neutral current controller. © 2020, Editorial Office of Control and Decision. All right reserved.
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页码：329 / 338
页数：9
相关论文
共 18 条
  • [1] Holtz J., Quan J., Schmittt G., Et al., Design of fast and robust current regulators for high-power drives based on complex state variables, IEEE Transactions on Industry Applications, 40, 5, pp. 1388-1397, (2004)
  • [2] Qi L.Y., Wang C.C., Zhou M.L., Et al., A current loop decoupling control method for induction motor, Transactions of China Electrotechnical Society, 29, 5, pp. 174-180, (2014)
  • [3] Jinhwan J., Kwanghee N., A dynamic decoupling control scheme for high-speed operation of induction motors, IEEE Transactions on Industrial Electronics, 46, 1, pp. 100-110, (1999)
  • [4] Harnefors L., Nee H.P., Model-based current control of AC machines using the internal model control method, IEEE Transactions on Industry Applications, 34, 1, pp. 133-141, (1998)
  • [5] Wei K.K., Zhou M.L., Zheng Q.L., Digital control of induction motor current loop based on complex vector, Transactions of China Electrotechnical Society, 26, 6, pp. 88-93, (2011)
  • [6] Wei K.K., Research on digital control of track traction inverter, (2012)
  • [7] Monmasson E., Cirstea M.N., FPGA design methodology for industrial control systems-A review, IEEE Transactions on Industrial Electronics, 54, 4, pp. 1824-1842, (2007)
  • [8] Bode G.H., Loh P.C., Newman M.J., Et al., An improved robust predictive current regulation algorithm, IEEE Transactions on Industry Applications, 41, 6, pp. 1720-1733, (2005)
  • [9] Cai G.P., Chen L.X., Some problems of delayed feedback control, Advances in Mechanics, 43, 1, pp. 21-28, (2013)
  • [10] Zhao L.T., Diao L.J., Zhang Z., Et al., Digital control of induction motor current loop at low switching frequency, Proceedings of the CSEE, 34, 21, pp. 3456-3466, (2014)
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