Developing and Testing of Improved Control System of Electric Arc Furnace Electrical Regimes

2015 ◽  
Vol 792 ◽  
pp. 488-494 ◽  
Author(s):  
Alexander Nikolaev ◽  
Gennady Kornilov ◽  
Evgeniy Povelitsa
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Automatic Control System ◽  
Hydraulic Drive ◽  
Electric Circuit ◽  
Electric Arc ◽  
Nonlinear Controller ◽  
Arc Furnaces ◽  
Electrode Positioning ◽  
Main Components

The article deals with the description of an improved automatic control system for steel-making furnaces (electric arc furnaces and ladle furnaces) electrode positioning and the results of its production testing. The control performance of electrode positioning of the developed automatic control system was studied using a mathematical model, which included the main components of the system: the hydraulic drive of electrode positioning with a servo valve, electric circuit of the furnace described by Cassie nonlinear differential equation, impedance nonlinear controller. It was proved that a more accurate positioning makes it possible to significantly reduce electric power consumption per tap-to-tap cycle.

Research and Development of Automatic Control System for Electric Arc Furnace Electrode Positioning

2015 ◽  
Vol 785 ◽  
pp. 707-713 ◽  
Author(s):  
Alexander Nikolaev ◽  
Evgeniy Povelitsa ◽  
Gennady Kornilov ◽  
Anton Anufriev
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Automatic Control System ◽  
Electric Arc ◽  
Positioning Control ◽  
Arc Furnaces ◽  
Nonlinear Controllers ◽  
Steel Making ◽  
Electrode Positioning ◽  
Conventional Structure

The article is concerned with the advanced automatic control system of electrode positioning at electric arc steel making furnaces and ladle furnaces. Analysis of structure of modern electrode positioning control systems’ nonlinear controllers for electric arc furnaces and ladle furnaces is considered. Disadvantages of these systems were analyzed. A control system with a conventional structure from well-established foreign suppliers was compared with the advanced automatic control system of electrode positioning.

Research on Application of Hall Integrated Sensors

2012 ◽  
Vol 226-228 ◽  
pp. 1971-1974
Author(s):  
Qing Tian Li
Keyword(s):  
Magnetic Field ◽  
Control System ◽  
Automatic Control ◽  
Automatic Control System ◽  
Electric Motor ◽  
High Reliability ◽  
Electric Circuit ◽  
Integrated Sensor ◽  
Electrical Machinery ◽  
Research On Application

This essay study that in magnetic field and current intensity, measurement, work of electric motor regulating speed applied by Hall integrated sensor shows that in electrical machinery electric circuit control and automatic control system, using Hall integrated sensor has stable properties, high reliability, good temperature stable properties, anti-pollution, without touch dot, etc advantages, comparing with traditional automatic control electric circuit has obvious advantages. It attaches importance to many people in practical use.

scholarly journals DEVELOPMENT OF AUTOMATIC CONTROL SYSTEM AIMED AT DISTRIBUTION OF ENERGY RESOURCES IN ARC FURNACES

2017 ◽  
pp. 32-37
Author(s):  
Gennadi Kornilov ◽  
◽  
Aleksandr Nikolaev ◽  
Pavel Shulepov ◽  
Olga Petukhova ◽  
...  
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Automatic Control System ◽  
Energy Resources ◽  
Arc Furnaces

scholarly journals Modeling of automatic control system for air supply to a bio-reactor using fuzzy control

2021 ◽  
Vol 2131 (2) ◽  
pp. 022009
Author(s):  
V F Lubentsov ◽  
E A Shakhrai ◽  
E V Lubentsova
Keyword(s):  
Fuzzy Logic ◽  
Control System ◽  
Steady State ◽  
Fuzzy Control ◽  
Automatic Control ◽  
Automatic Control System ◽  
Fuzzy Controller ◽  
Nonlinear Controller ◽  
Steady State Mode ◽  
Air Supply

Abstract The stages of modeling the automatic control system (ACS) for air supply to aeration with the use of fuzzy control are considered. The investigated control algorithm is based on the combination of a nonlinear controller with approximating control (CAC), whose parameters are corrected using fuzzy logic. The algorithm for correcting the CAC parameters for transient and steady state modes is based on the application of two simple rulebases (RB) with three and five linguistic terms, respectively. As a result, the required speed in the transient mode and accuracy in the steady state mode are provided. It is proved that switching the RB according to the logic of the multi-mode system is less demanding on the number of rules, structure and setting parameters of the membership function than using the extended RB. The differences between the proposed ACS with different BP for the main operating modes of the system are shown. These include: improvement of quality indicators due to the implementation of different BP in different modes; more rigorous justification of the mechanism for ensuring insensitivity to the switching moments of BP when changing modes due to the CAC of the direct circuit of the ACS. Effective implementation of the stages of ACS modeling and fuzzy controller design is possible using the Fuzzy Logic Toolbox system of the Simulink MATLAB modeling environment.

Investigation of the stability of periodic motions in a nonlinear automatic control system based on the fast fourier transform

2003 ◽  
Vol 3 ◽  
pp. 297-307
Author(s):  
V.V. Denisov
Keyword(s):  
Fourier Transform ◽  
Control System ◽  
Automatic Control ◽  
Fast Fourier Transform ◽  
Automatic Control System ◽  
Resonance Phenomenon ◽  
Periodic Motions ◽  
Multiply Connected ◽  
Non Linear ◽  
The Stability

An approach to the study of the stability of non-linear multiply connected systems of automatic control by means of a fast Fourier transform and the resonance phenomenon is considered.

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