Modeling and multivariable active disturbance rejection control of hydraulic looper multivariable system

Document Type : Research Note


1 1.Institute of Manufacturing Engineering , HuaQiao University, Xiamen 361021,China 2.Fujian Engineering Research Center of Intelligent Manufacturing for Brittle Materials, Fujian 361021, China

2 1. Institute of Manufacturing Engineering , HuaQiao University, Xiamen 361021,China 2. Fujian Engineering Research Center of Intelligent Manufacturing for Brittle Materials, Fujian 361021, China

3 College of Information Science and Engineering, HuaQiao University, Xiamen 361021,China


Controlling the looper height and strip tension is important in hot strip mills, because these variables affect both the strip quality and strip threading. Many researchers have proposed and applied a variety of control schemes for this problem, but the increasingly strict market demand for strip quality requires further improvements. This paper describes a multivariable active disturbance rejection control (MADRC) strategy that realizes the decoupling control of a hydraulic looper multivariable system. Simulation experiments for a traditional proportion- integration (PI) controller and the proposed MADRC controller were conducted using MATLAB/Simulink software. The simulation results show that the proposed MADRC ensures good robustness and adaptability under modeling uncertainty and external disturbance .It is concluded that the designed MADRC controller produces better dynamic performance than the traditional PI controller, and the proposed looper control system is effective and practical.


Main Subjects

1. Sansal, K.Y., Huang, B., and Forbes, J.F. \Dynamics
and variance control of hot mill loopers", Control
Engineering Practice, 16(1), pp. 89-100 (2008).
2. Sansal, K.Y., Forbes, J.F., and Huang, B. \Dynamic
modelling and simulation of a hot strip nishing mill",
Applied Mathematical Modelling, 33(7), pp. 3208-3325
3. Choi, I.S., Rossiter, J.A., and Fleming, P.J. \Looper
and tension control in hot rolling mills: a survey",
Journal of Process Control, 17(6), pp. 509-521 (2007).
4. Kazuy, A., Takashi, K., and Nobukai, N. \Hot strip
mill tension-looper control based on decentralization
and coordination", Control Engineering Practice, 8(3),
pp. 337-344 (2000).
5. Hearns, G. and Grimble, M.J. \Robust multivariable
control for hot strip mills", ISIJ International, 40(10),
pp. 995-1002 (2000).
6. Cheng, C.C., Hsu, L.Y., and Chen, Z.S. \Precise
looper simulation for hot strip mills using an autotuning
approach", The International Journal of Advanced
Manufacturing Technology, 27(5), pp. 481-487
7. Li, Z.J., Shi, X., Liu, H.P., and Yang, W.D. \Modeling
and control of hydraulic looper multivariable systems",
Journal of University of Science and Technology Beijing,
32(10), pp. 1353-1359 (2010).
8. Riccardo, F., Francesco, A.C., and Thomas. P. \Friction
compensation in the interstand looper of hot
strip mills: a sliding- mode control approach", Control
Engineering Practice, 16(2), pp. 214-224 (2008).
9. Zhong, Z.Z., Wang, J.C., and Zhang, J.M. \Loopertension
sliding mode control for hot strip nishing
mills", Journal of Iron and Steel Research International,
19(1), pp. 23-30 (2012).
10. Wang, H.W., Jing, Y.W., and Yu, C. \Guaranteed cost
sliding mode control for looper-tension multivariableuncertain
systems", Nonlinear Dynamics, 80(1-2), pp.
39-50 (2015).
11. Zhong, Z.Z. and Wang, J.C. \Looper-tension almost
disturbance decoupling control for hot strip nishing
mill based on feedback linearization", IEEE Transactions
on Industrial Electronics, 58(8), pp. 3668-3677
12. Pittner, J. and Simaan, M.A. \A useful control model
for tandem hot metal strip rolling", IEEE Transactions
on Industry Applications, 46(6), pp. 2251-2258 (2010).
13. Wang, L.J., Tong, C.N., and Li, Q. \Practical active
disturbance rejection solution for monitoring automatic
gauge control system with large time-delay",
Control Theory and Apply, 29(3), pp. 368-374 (2012).
14. Zou, J., Fu, X., and Yang, H.Y. \Active disturbance
rejection control for hydraulic width control system for
rough mill", Journal of Zhe Jiang University Sci A,
8(9), pp. 1429-1434 (2007).
15. Huang, Y., Xu, K., Han, J., and Lam, J. \Flight
control design using extended state observe and nonsmooth
feedback", Proceedings of the 2001 IEEE Conference
on Decision and Control, Florida, USA, pp.
223-228 (2001).
16. Su, J.B. and Qiu, W.B. \Robotic calibration-free handeye
coordination based on auto disturbances rejectioncontroller",
Acta Automatica Sinica, 29(2), pp. 161-
167 (2003).
17. Dong, L., Zheng, Q., and Gao, Z. \A novel controller
design for electric power assist steering systems",
Journal of Intelligent Control and Systems, 8(11), pp.
1871-1878 (2008).
18. Wang, Y., Zhang, Z., and Qin, X.Q. \Modeling
and control for hydraulic transmission of unmanned
ground vehicle", Journal of Central South University
of Technology, 21(1), pp. 124-129 (2014).
19. John, P. and Marwan, A.S. \Improvement in control
of the tandem hot strip mill", IEEE Transactions on
Industry Applications, 49(5), pp. 1962-1970 (2013).
20. Jiao, X.H., Shao, L.P., and Peng, Y. \Adaptive coordinated
control for hot strip nishing mills", Journal of
Iron and Steel Research International, 18(4), pp. 36-43
21. Okada, M., Murayama, K., and Urano, A. \Optimal
control system for hot strip nishing mill", Control
Engineering Practice, 2(8), pp. 1029-1034 (1998).
F.-C. Yin et al./Scientia Iranica, Transactions C: Chemistry and ... 25 (2018) 3401{3413 3413
22. Han, J.Q. \Linear and nonlinear of feedback system",
Control Decision, 3(1), pp. 27-32 (1998).
23. Han, J.Q. \Auto disturbances rejection controller and
its applications", Control Decision, 13, pp. 19-23
24. Gao, B.W., Shao, J.P., and Yang, X.D. \A compound
control strategy combining velocity compensation with
ADRC of electro-hydraulic position servo control system",
ISA Transactions, 53(6), pp. 1910-1918 (2014).
25. Zhao, Z.L. and Guo, B.Z. \On active disturbance
rejection control for nonlinear systems using timevarying
gain", European Journal of Control, 23, pp.
62-70 (2015).