Plate Mill Stand Electric Drive Control in Asymmetrical Rolling Mode of the Strip Plate Head
Keywords:
rolling stand, strip plate curve, electric drive, speed, control, method, control system, simulation, experimental study
Abstract
An urgent problem that arises in rolling flat steel and plates is to form the preset strip plate head skid-shaped curvature. This is implemented by adjusting the ratio (mismatch) between the top and bottom rolls in the rolling mill horizontal stands. The factors influencing the strip plate head curvature at the stand exit are listed. With reference to the 5000 plate mill of PJSC Magnitogorsk Iron and Steel Works, the article analyzes the top and bottom roll speeds in the “skid” formation mode. The main drawback of the existing electric drive control system is that it controls the speeds as a function of the difference between their current (actual) values. This results in that the drive of one roll reaches a limitation with loss of motor controllability and uncontrolled strip plate curvature. To eliminate this drawback, a new control method was developed, according to which the electric drive speeds are adjusted as a function of the difference between the speed setpoint signals at the inputs of speed controllers. The control system structure implementing this method is considered. The results of simulating the gripping modes with the simultaneous “skid” formation are presented, and the similar experimental oscillograms are considered. It is shown that with the new control algorithm, the electric drive speeds are closer to their setpoint values. This results in better curvature formation accuracy at lower preset “skid” values. Recommendations for tuning the control system are given.
References
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6. Chikishev D.N., Pozhidaeva E.B. Analysis of the Causes of Vertical Bending of the Strip Front End at Hot Rolling on the Basis of Mathematical Modeling. – Izvestia Ferrous Metallurgy, 2016, vol. 59, No. 1, pp. 204–208, DOI:10.17073/0368-0797-2016-1-204-208.
7. Kiefer T., Kugi A. An Analytical Approach for Modelling Asymmetrical Hot Rolling of Heavy Plate. – Mathematical and Computer Modelling of Dynamical Systems, 2008, No. 14, pp. 249–267, DOI:10.1080/13873950701844915.
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17. Карандаев А.С. и др. Экспериментальное определение параметров двухмассовой электромеханической системы прокатного стана. – Известия высших учебных заведений. Электромеханика, 2021, т. 64, № 3, с. 24–35.
18. Gasiyarov V.R. et al. The Method of Bend Forming on Workpieces in Plate Rolling Applications. –Proceedings of the 7th International Conference on Industrial Engineering, 2022, pp. 668–678. DOI:10.1007/978-3-030-85230-6_79.
19. Pesin A. et al. Finite Element Simulation of Shear Strain in Various Asymmetric Cold Rolling Processes. – Вестник МГТУ им. Г.И. Носова, 2014, № 4, c. 32–40.
20. Песин А.М., Пустовойтов Д.О., Свердлик М.К. Развитие теории и технологии процесса асимметричной тонколистовой прокатки как метода интенсивной пластической деформации. Магнитогорск: Изд-во Магнитогорск. гос. техн. ун-та им. Г.И. Носова, 2017, 150 с.
21. Галкин В.В. и др. Автоматическая коррекция толщины головного участка полосы в гидравлической системе автоматического регулирования толщины широкополосного стана горячей прокатки. – Известия высших учебных заведений. Электромеханика, 2011, № 4, c. 46–50.
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Работа выполнена при финансовой поддержке Минобрнауки России в рамках субсидии на финансовое обеспечение выполнения государственного задания (фундаментальное научное исследование), договор №FENU-2020-0020 (2020071ГЗ)
#
1. Anders D.A. et al. A Dimensional Analysis of Front-End Bending in Plate Rolling Applications. – Journal of Materials Processing Technology, 2012, No. 212(6), pp. 1387–1398, DOI:10.1016/j.jmat-protec.2012.02.005.
2. Gasiyarov V.R. Izvestiya vysshih uchebnyh zavedeniy. Elektromekhanika – in Russ. (News of Higher Educational Institutions. Electromechanics), 2019, No. 3, pp. 33–43.
3. Pаt. RU 2486974 C1. Sposob assimetrichnoy prokatki perednih kontsov tolstyh listov na reversivnyh stanah (Method of Asymmetric Rolling of the Front Ends of Thick Sheets on Reversible Mills) / V.М. Salganik et al., 2013.
4. Maksimov V.М. et al. Trudy XI Kongressa prokatchikov – in Russ. (Proceedings of the XI rollers’congress), Magnitogorsk, 2017, pp. 362–370.
5. Varshavskiy E.A., Hrapov M.A., Basurov V.М. Trudy XI Kon-gressa prokatchikov – in Russ. (Proceedings of the XI rollers’congress), Magnitogorsk, 2017, pp. 57–62.
6. Chikishev D.N., Pozhidaeva E.B. Analysis of the Causes of Vertical Bending of the Strip Front End at Hot Rolling on the Basis of Mathematical Modeling. – Izvestia Ferrous Metallurgy, 2016, vol. 59, No. 1, pp. 204–208, DOI:10.17073/0368-0797-2016-1-204-208.
7. Kiefer T., Kugi A. An Analytical Approach for Modelling Asymmetrical Hot Rolling of Heavy Plate. – Mathematical and Computer Modelling of Dynamical Systems, 2008, No. 14, pp. 249–267, DOI:10.1080/13873950701844915.
8. Minton J.J., Cawthorn C.J., Brambley E.J. Asymptotic Analysis of Asymmetric Thin Sheet Rolling. – International Journal of Mechanical Sciences, 2016, pp. 36–48, DOI:10.1016/j.ijmec-sci.2016.03.024.
9. Kawalek A. et al. Analysis of the Asymmetric Plate Rolling Process in the Finishing Stand 3600 – Archives of Metallurgy and Materials, 2014, vol. 59, iss. 4, DOI: 10.2478/amm-2014-0259.
10. Kiefer T., Kugi A. Model-Based Control of Front-End Bending in Hot Rolling Process. – The International Federation of Automatic Control Proceedings Volumes, 2008, DOI:10.3182/20080706-5-KR- 1001.1396.
11. Maksimov Е.А. Oborudovanie. – in Russ. (Equipment), 2008, No. 3, pp. 50–53.
12. Pesin A.M., Perekhozhih A.A., Pustovoytov D.О. Aktual'nye problemy sovremennoy nauki, tekhniki i obrazovaniya – in Russ. (Actual Problems of Modern Science, Technology and Education), 2012, vol. 1, No. 70, pp. 217–219.
13. Karandaev A.S. et al. Izvestiya vysshih uchebnyh zavedeniy. Elektromekhanika – in Russ. (News of Higher Educational Institutions. Electromechanics), 2019, vol. 62, No. 4, pp. 53–64.
14. Il'yasov B.G., Saitova G.А. Avtomatika i telemekhanika – in Russ. (Automation and Telemechanics), 2013, No. 3, pp. 173–191.
15. Kuznetsov B.I., Nikitina T.B., Bovdui I.V. Structural-Parametric Synthesis of Rolling Mills Multi-Motor Electric Drives. – Electrical Engineering & Electromechanics, 2020, No. 5, pp. 25–30, DOI:10.20998/2074-272X.2020.5.04.
16. Kuznetsov B.I. et al. The Method of Limitation of Dynamic Loads of Nonlinear Electromechanical Systems under State Vector Robust Control. – Electrical Engineering & Electromechanics, 2022, No. 2, pp. 3–10. DOI:10.20998/2074-272X.2022.2.01.
17. Karandaev A.S. et al. Izvestiya vysshih uchebnyh zavedeniy. Elektromekhanika – in Russ. (News of Higher Educational Institutions. Electromechanics), 2021, vol. 64, No. 3, pp. 24–35.
18. Gasiyarov V.R. et al. The Method of Bend Forming on Workpieces in Plate Rolling Applications. –Proceedings of the 7th International Conference on Industrial Engineering, 2022, pp. 668–678. DOI:10.1007/978-3-030-85230-6_79.
19. Pesin A. et al. Vestnik MGTU im. G.I. Nosova – in Russ. (Bulletin of the Moscow State Technical University n. a. G.I. Nosov), 2014, No. 4, pp. 32–40.
20. Pesin A.M., Pustovoytov D.O., Sverdlik M.K. Razvitie teorii i tekhnologii protsessa asimmetrichnoy tonkolistovoy prokatki kak metoda intensivnoy plasticheskoy deformatsii (Development of the Theory and Technology of the Process of Asymmetric Thin-Sheet Rolling as a Method of Intensive Plastic Deformation). Magnitogorsk: Izd-vo Magnitogorsk. gos. tekhn. un-ta im. G.I. Nosova, 2017, 150 p.
21. Galkin V.V. et al. Izvestiya vysshih uchebnyh zavedeniy. Elektromekhanika – in Russ. (News of Higher Educational Institutions. Electromechanics), 2011, No. 4, pp. 46–50.
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This work was financially supported by the Ministry of Science and Higher Education of the Russian Federation within the framework of a grant for executing the state assignment (a fundamental scientific study), contract No. FENU-2020-0020 (2020071GZ).
2. Гасияров В.Р. Способ повышения быстродействия системы управления электроприводами горизонтальной клети прокатного стана в режиме лыжеобразования. – Известия высших учебных заведений. Электромеханика, 2019, № 3, c. 33–43.
3. Пат. RU 2486974 C1. Способ ассиметричной прокатки передних концов толстых листов на реверсивных станах / В.М. Салганик и др., 2013.
4. Максимов В.М. и др. Экспериментальное исследование изгиба переднего конца раската при толстолистовой прокатке. – Труды XI Конгресса прокатчиков, Магнитогорск, 2017, c. 362–370.
5. Варшавский Е.А., Храпов М.А., Басуров В.М. Система автоматического управления изгибом переднего конца раската в черновой клети с индивидуальным приводом валков. – Труды XI Конгресса прокатчиков, Магнитогорск, 2017, c. 57–62.
6. Chikishev D.N., Pozhidaeva E.B. Analysis of the Causes of Vertical Bending of the Strip Front End at Hot Rolling on the Basis of Mathematical Modeling. – Izvestia Ferrous Metallurgy, 2016, vol. 59, No. 1, pp. 204–208, DOI:10.17073/0368-0797-2016-1-204-208.
7. Kiefer T., Kugi A. An Analytical Approach for Modelling Asymmetrical Hot Rolling of Heavy Plate. – Mathematical and Computer Modelling of Dynamical Systems, 2008, No. 14, pp. 249–267, DOI:10.1080/13873950701844915.
8. Minton J.J., Cawthorn C.J., Brambley E.J. Asymptotic Analysis of Asymmetric Thin Sheet Rolling. – International Journal of Mechanical Sciences, 2016, pp. 36–48, DOI:10.1016/j.ijmecsci. 2016.03.024.
9. Kawalek A. et al. Analysis of the Asymmetric Plate Rolling Process in the Finishing Stand 3600 – Archives of Metallurgy and Materials, 2014, vol. 59, iss. 4, DOI: 10.2478/amm-2014-0259.
10. Kiefer T., Kugi A. Model-Based Control of Front-End Bending in Hot Rolling Process. – The International Federation of Automatic Control Proceedings Volumes, 2008, DOI:10.3182/20080706-5-KR-1001.1396.
11. Максимов Е.А. Изменение геометрии концов полосы при несимметричной прокатке. – Оборудование, 2008, № 3, с. 50–53.
12. Песин А.М., Перехожих А.А., Пустовойтов Д.О. Моделирование подгиба переднего конца раската при толстолистовой прокатке. – Актуальные проблемы современной науки, техники и образования, 2012, т. 1, № 70, с. 217–219.
13. Карандаев А.С. и др. Совершенствование алгоритмов регулирования толщины и профиля зазора валков реверсивной клети толстолистового прокатного стана. – Известия высших учебных заведений. Электромеханика, 2019, т. 62, № 4, с. 53–64.
14. Ильясов Б.Г., Саитова Г.А. Системный подход к исследованию многосвязных систем автоматического управления на основе частотных методов. – Автоматика и телемеханика, 2013, № 3, с. 173–191.
15. Kuznetsov B.I., Nikitina T.B., Bovdui I.V. Structural-Parametric Synthesis of Rolling Mills Multi-Motor Electric Drives. – Electrical Engineering & Electromechanics, 2020, No. 5, pp. 25–30, DOI:10.20998/2074-272X.2020.5.04.
16. Kuznetsov B.I. et al. The Method of Limitation of Dynamic Loads of Nonlinear Electromechanical Systems under State Vector Robust Control. – Electrical Engineering & Electromechanics, 2022, No. 2, pp. 3–10. DOI:10.20998/2074-272X.2022.2.01.
17. Карандаев А.С. и др. Экспериментальное определение параметров двухмассовой электромеханической системы прокатного стана. – Известия высших учебных заведений. Электромеханика, 2021, т. 64, № 3, с. 24–35.
18. Gasiyarov V.R. et al. The Method of Bend Forming on Workpieces in Plate Rolling Applications. –Proceedings of the 7th International Conference on Industrial Engineering, 2022, pp. 668–678. DOI:10.1007/978-3-030-85230-6_79.
19. Pesin A. et al. Finite Element Simulation of Shear Strain in Various Asymmetric Cold Rolling Processes. – Вестник МГТУ им. Г.И. Носова, 2014, № 4, c. 32–40.
20. Песин А.М., Пустовойтов Д.О., Свердлик М.К. Развитие теории и технологии процесса асимметричной тонколистовой прокатки как метода интенсивной пластической деформации. Магнитогорск: Изд-во Магнитогорск. гос. техн. ун-та им. Г.И. Носова, 2017, 150 с.
21. Галкин В.В. и др. Автоматическая коррекция толщины головного участка полосы в гидравлической системе автоматического регулирования толщины широкополосного стана горячей прокатки. – Известия высших учебных заведений. Электромеханика, 2011, № 4, c. 46–50.
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Работа выполнена при финансовой поддержке Минобрнауки России в рамках субсидии на финансовое обеспечение выполнения государственного задания (фундаментальное научное исследование), договор №FENU-2020-0020 (2020071ГЗ)
#
1. Anders D.A. et al. A Dimensional Analysis of Front-End Bending in Plate Rolling Applications. – Journal of Materials Processing Technology, 2012, No. 212(6), pp. 1387–1398, DOI:10.1016/j.jmat-protec.2012.02.005.
2. Gasiyarov V.R. Izvestiya vysshih uchebnyh zavedeniy. Elektromekhanika – in Russ. (News of Higher Educational Institutions. Electromechanics), 2019, No. 3, pp. 33–43.
3. Pаt. RU 2486974 C1. Sposob assimetrichnoy prokatki perednih kontsov tolstyh listov na reversivnyh stanah (Method of Asymmetric Rolling of the Front Ends of Thick Sheets on Reversible Mills) / V.М. Salganik et al., 2013.
4. Maksimov V.М. et al. Trudy XI Kongressa prokatchikov – in Russ. (Proceedings of the XI rollers’congress), Magnitogorsk, 2017, pp. 362–370.
5. Varshavskiy E.A., Hrapov M.A., Basurov V.М. Trudy XI Kon-gressa prokatchikov – in Russ. (Proceedings of the XI rollers’congress), Magnitogorsk, 2017, pp. 57–62.
6. Chikishev D.N., Pozhidaeva E.B. Analysis of the Causes of Vertical Bending of the Strip Front End at Hot Rolling on the Basis of Mathematical Modeling. – Izvestia Ferrous Metallurgy, 2016, vol. 59, No. 1, pp. 204–208, DOI:10.17073/0368-0797-2016-1-204-208.
7. Kiefer T., Kugi A. An Analytical Approach for Modelling Asymmetrical Hot Rolling of Heavy Plate. – Mathematical and Computer Modelling of Dynamical Systems, 2008, No. 14, pp. 249–267, DOI:10.1080/13873950701844915.
8. Minton J.J., Cawthorn C.J., Brambley E.J. Asymptotic Analysis of Asymmetric Thin Sheet Rolling. – International Journal of Mechanical Sciences, 2016, pp. 36–48, DOI:10.1016/j.ijmec-sci.2016.03.024.
9. Kawalek A. et al. Analysis of the Asymmetric Plate Rolling Process in the Finishing Stand 3600 – Archives of Metallurgy and Materials, 2014, vol. 59, iss. 4, DOI: 10.2478/amm-2014-0259.
10. Kiefer T., Kugi A. Model-Based Control of Front-End Bending in Hot Rolling Process. – The International Federation of Automatic Control Proceedings Volumes, 2008, DOI:10.3182/20080706-5-KR- 1001.1396.
11. Maksimov Е.А. Oborudovanie. – in Russ. (Equipment), 2008, No. 3, pp. 50–53.
12. Pesin A.M., Perekhozhih A.A., Pustovoytov D.О. Aktual'nye problemy sovremennoy nauki, tekhniki i obrazovaniya – in Russ. (Actual Problems of Modern Science, Technology and Education), 2012, vol. 1, No. 70, pp. 217–219.
13. Karandaev A.S. et al. Izvestiya vysshih uchebnyh zavedeniy. Elektromekhanika – in Russ. (News of Higher Educational Institutions. Electromechanics), 2019, vol. 62, No. 4, pp. 53–64.
14. Il'yasov B.G., Saitova G.А. Avtomatika i telemekhanika – in Russ. (Automation and Telemechanics), 2013, No. 3, pp. 173–191.
15. Kuznetsov B.I., Nikitina T.B., Bovdui I.V. Structural-Parametric Synthesis of Rolling Mills Multi-Motor Electric Drives. – Electrical Engineering & Electromechanics, 2020, No. 5, pp. 25–30, DOI:10.20998/2074-272X.2020.5.04.
16. Kuznetsov B.I. et al. The Method of Limitation of Dynamic Loads of Nonlinear Electromechanical Systems under State Vector Robust Control. – Electrical Engineering & Electromechanics, 2022, No. 2, pp. 3–10. DOI:10.20998/2074-272X.2022.2.01.
17. Karandaev A.S. et al. Izvestiya vysshih uchebnyh zavedeniy. Elektromekhanika – in Russ. (News of Higher Educational Institutions. Electromechanics), 2021, vol. 64, No. 3, pp. 24–35.
18. Gasiyarov V.R. et al. The Method of Bend Forming on Workpieces in Plate Rolling Applications. –Proceedings of the 7th International Conference on Industrial Engineering, 2022, pp. 668–678. DOI:10.1007/978-3-030-85230-6_79.
19. Pesin A. et al. Vestnik MGTU im. G.I. Nosova – in Russ. (Bulletin of the Moscow State Technical University n. a. G.I. Nosov), 2014, No. 4, pp. 32–40.
20. Pesin A.M., Pustovoytov D.O., Sverdlik M.K. Razvitie teorii i tekhnologii protsessa asimmetrichnoy tonkolistovoy prokatki kak metoda intensivnoy plasticheskoy deformatsii (Development of the Theory and Technology of the Process of Asymmetric Thin-Sheet Rolling as a Method of Intensive Plastic Deformation). Magnitogorsk: Izd-vo Magnitogorsk. gos. tekhn. un-ta im. G.I. Nosova, 2017, 150 p.
21. Galkin V.V. et al. Izvestiya vysshih uchebnyh zavedeniy. Elektromekhanika – in Russ. (News of Higher Educational Institutions. Electromechanics), 2011, No. 4, pp. 46–50.
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This work was financially supported by the Ministry of Science and Higher Education of the Russian Federation within the framework of a grant for executing the state assignment (a fundamental scientific study), contract No. FENU-2020-0020 (2020071GZ).
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2023-01-26
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