Automatic system for controlling the speed regime of the electric drives of a rolling mill on the basis of unikont controller

Metallurgist ◽  
1995 ◽  
Vol 39 (5) ◽  
pp. 92-95 ◽  
Author(s):  
A. S. Koba ◽  
A. I. Nechiporenko ◽  
Yu. I. Pustovoichenko
Keyword(s):  
Rolling Mill ◽  
Automatic System ◽  
Electric Drives ◽  
Speed Regime

Automatic system of controlling the molten glass level with the help of charge feeders with thyristor electric drives

1976 ◽  
Vol 33 (6) ◽  
pp. 358-360
Author(s):  
M. A. Zezin ◽  
N. A. Ivanov ◽  
A. A. Tarunin ◽  
M. V. Egorov
Keyword(s):  
Molten Glass ◽  
Automatic System ◽  
Electric Drives ◽  
Glass Level

scholarly journals Investigation into parallel operation of rolling mill automated electric drives and an electric arc furnace

Vestnik IGEU ◽  
2017 ◽  
pp. 59-69 ◽  
Author(s):  
A.A. Nikolaev ◽  
◽  
A.S. Denisevich ◽  
M.V. Bulanov ◽  
◽  
...  
Keyword(s):  
Rolling Mill ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Arc Furnace ◽  
Parallel Operation ◽  
Electric Drives

Algorithms of a digital automatic system for tension and loop control in a wide-strip hot-rolling mill

2013 ◽  
Vol 84 (10) ◽  
pp. 533-541 ◽  
Author(s):  
P. V. Shilyaev ◽  
I. Yu. Andryushin ◽  
V. V. Golovin ◽  
A. A. Radionov ◽  
A. S. Karandaev ◽  
...  
Keyword(s):  
Hot Rolling ◽  
Rolling Mill ◽  
Automatic System ◽  
Loop Control ◽  
Wide Strip ◽  
Hot Rolling Mill

Concept of Designing Systems for Monitoring Technical State of Rolling Mill Electric Drives

2015 ◽  
Vol 792 ◽  
pp. 15-20 ◽  
Author(s):  
Aleksey S. Evdokimov ◽  
Vadim Rifhatovich Khramshin ◽  
Sergey A. Evdokimov
Keyword(s):  
Hot Rolling ◽  
Rolling Mill ◽  
Technical State ◽  
Continuous Control ◽  
State Control ◽  
Decentralized System ◽  
Iron And Steel ◽  
Electric Drives ◽  
Wide Strip ◽  
Hot Rolling Mill

It has been proven that the introduction of the systems for continuous control of the equipment technical state is a necessary requirement of the modern maintenance of the critical equipment. The paper proposes the list of the processing facilities applied within the development systems for technical state control. The task of development of the system for recording, storing and displaying oscillographs of the automated electric drives of the wide-strip hot-rolling mill has been defined. The paper offers the analysis of the recording system based on the remote I/O controllers and the system with distributed industrial computers. The most informative-significant signals are listed. The network topology of the decentralized system implemented at the 2,500 mm wide-strip hot-rolling mill of OJSC Magnitogorsk Iron and Steel Works is suggested. Oscillographs of the main coordinates of the mill's electric drives obtained by means of the introduced system are provided.

scholarly journals Improved Control System Analysis of Frequency Converters Active Rectifiers as a Part of Rolling Mill Electric Drives

2021 ◽  
pp. 62-68
Author(s):  
Alexander Nikolaev ◽  
◽  
Ildar Gilemov ◽  
Oleg Malakhov ◽  
◽  
...  
Keyword(s):  
Control System ◽  
Rolling Mill ◽  
System Analysis ◽  
Electric Drives ◽  
Frequency Converters ◽  
Active Rectifiers

Elaboration of forecasting methods of analysis of metallurgical facilities electric drives technical state

2021 ◽  
Vol 77 (9) ◽  
pp. 1033-1038
Author(s):  
A. V. Kozhevnikov ◽  
N. P. Brevnov
Keyword(s):  
Rolling Mill ◽  
Statistical Parameter ◽  
Transition Process ◽  
Normal Operation ◽  
System State ◽  
Strip Rolling ◽  
Electric Drives ◽  
Deviation Analysis ◽  
Analysis Of Dynamics ◽  
Rotor Equipment

To prevent losses of equipment downtime, analytical algorithms and data of automated control systems sensors are used to estimate time to the equipment failure approach. It was shown that modern technical systems, such as automated electric drives are equipped by measuring devices which allow to accomplish self-diagnostic of the system in real time mode at existing methods of data processing and analysis. This approach is more effective than traditional methods of diagnostic and does not include additional capital expenses for specialized diagnostic equipment and personal qualification. Hypothesis of forecasting of electromechanical driving system state was elaborated and checked for continuous rolling mill runaway roller, based on character of loading modes by using only one parameter – the electric motor current. Based on the data analysis of wide strip rolling mill 2000 runaway rollers operation, normalized curves of distribution of average values of the runaway roller drive current at its normal operation and origination of a malfunction were built. It was shown that a technical system state change is fixed at appearance of a deviation of load current distribution comparing with a standard deviation. Analysis of dynamics of a statistical parameter, the standard error (the difference between actual and standard distribution) at a transition process allowed to make a forecast of roller jamming several days before the malfunction took place. The proposed approach of equipment state estimation can become a base for elaboration of a principally new methods of diagnostic of metallurgical rotor equipment.

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