Key Technologies and Application of Automatic Control System for Wide Stainless Steel Hot Strip Rolling Line

2012 ◽  
Vol 572 ◽  
pp. 187-192
Author(s):  
Da Zhi Zhang ◽  
Ming Kang ◽  
Wei Zhao
Keyword(s):  
Stainless Steel ◽  
Control System ◽  
Automatic Control ◽  
Automatic Control System ◽  
High Speed ◽  
System Structure ◽  
Design System ◽  
Strip Line ◽  
Hot Strip ◽  
Design Ideas

Wide stainless steel hot strip line integrated with mechanical electric hydraulic equipments is a complicated large system. Automatic control system is very important for improving mill efficiency and products quality. The new equipments and technology are introduced. The characteristics of hot strip line and its requests for automation, the ideas of control system design, system structure and configuration are explained in detail. Multilevel system, 1000M high speed fabric Ethernet between levels, 640M high speed global data memory network between controllers, high speed Profibus_DP network between controller and equipments, hot machine backup strategy of L2,Tri-cyclic fabric Ethernet redundancy of L1 and other innovative design ideas,and L2 main mathematic models, L1 key control models are all applied in the system. The design ideas of this paper and integrated automatic control system has been applied on several stainless steel hot strip lines.

scholarly journals IMPROVEMENT OF AUTOMATIC CONTROL SYSTEM FOR HIGH -SPEED CURRENT COLLECTORS

2017 ◽  
Vol 5 (3) ◽  
pp. 108-113
Author(s):  
O. A. Sidorov ◽  
◽  
V. N. Goryunov ◽  
A. S. Golubkov ◽  
◽  
...  
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Automatic Control System ◽  
High Speed ◽  
Current Collectors

THE WAYS TO IMPROVE THE SUBSIDIARY ELECTRIC DRIVE OF HIGH-SPEED ELECTRIC STOCK

2018 ◽  
pp. 121-131
Author(s):  
Elena Makarova ◽  
Stanislav Telichenko ◽  
Ildar Shakirov ◽  
Alexander Trifanov ◽  
Alexander Ivanov ◽  
...  
Keyword(s):  
Fuzzy Logic ◽  
Control System ◽  
Automatic Control ◽  
Automatic Control System ◽  
Computer Model ◽  
Electric Drive ◽  
High Speed ◽  
Practical Importance ◽  
Automatic Control Systems ◽  
Research Findings

Objective: To improve the subsidiary electric drive of high-speed electric stock by applying asynchronous drive frequency regulator. Methods: Fuzzy logic concepts were applied for an automatic control system regulator. Results: A computer model of the regulator was developed and the results of modeling were presented in the form of optimization process of load moment stepped variation by the control system with standard and fuzzy logic controllers. Practical importance: On the basis of the introduced computer model, transient analysis is possible in automatic control system of the subsidiary electric drive of the high-speed electric stock. The research findings may be used in the design of new and retrofit of the existing automatic control systems of the subsidiary electric drive with improved characteristics of control performance.

Automatic control system for regulating the temperature of the draw rolls in high-speed spinning-stretching of Capron yarn

1973 ◽  
Vol 5 (2) ◽  
pp. 201-203
Author(s):  
E. I. Fandeev ◽  
V. P. Ivanchenko ◽  
N. I. Sukharev ◽  
E. G. Podushkin ◽  
E. A. Ro
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Automatic Control System ◽  
High Speed

scholarly journals SETPOINT OPTIMIZATION FOR THE CONTROL SYSTEM OF THE MOTOR GRADER IN HEAVYLOAD MODE

2018 ◽  
Vol 15 (4) ◽  
pp. 502-513
Author(s):  
V. A. Meshcheryakov ◽  
V. V. Weber
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Production Rate ◽  
Automatic Control System ◽  
System Structure ◽  
Lookup Table ◽  
Workflow Model ◽  
Slip Ratio ◽  
Tuning Method ◽  
Digging Force

Introduction. The authors suggest the optimal tuning method foran automatic control system of the heavy motor grader blade. The demonstrated system regulates the value of digging force. Moreover, the setpoint optimization criterion is the maximum of production rate.Materials and methods. The optimal setpoint is generating to the signal estimations, specifically to the measured digging force and the wheels slip ratio during the previous stroke of the motor grader.There searchincludes:development of the blade control system functional diagram including the setpoint former;meaningful estimation of the slip ratio signal for control purposes;development of the setpoint forming algorithm for a microprocessor control unit;program realization of the motor grader workflow model and simulation;development of the algorithm to compose the lookup table containing optimal setpoint values and based on simulation results;dependence of optimal setpoint on the incoming signal estimations.Results. The lookup table of optimal setpoint values is obtained, the estimations of digging force and wheels slip ratio are presented. In addition, the authors suggest the control system structure with the optimal setpoint former and also develop the former operation algorithm.Discussion and conclusion. The optimal setpoint values are theoretically validated for the motor grader control system. The tuning method for an automatic control system of the heavy motor grader blade has the following characteristics as:the optimal control criterion as the production rate;process dynamics and stochastics;the excessive slippage time ratio.

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