Intelligent controller of electric furnace electrode

A technology of intelligent controller and electric furnace electrode, which is applied in the direction of electric heating devices, electrical components, and energy efficiency improvement, and can solve problems such as limiting electric furnace control technology

Inactive Publication Date: 2010-05-26
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the PLC control design scheme of the whole furnace is generally adopted at home and abroad, which limits the development of electric furnace control technology, and some advanced control methods are difficult to be flexibly used on PLC, especially as the core

Method used

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  • Intelligent controller of electric furnace electrode
  • Intelligent controller of electric furnace electrode
  • Intelligent controller of electric furnace electrode

Examples

Experimental program
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Embodiment Construction

[0088] The electric furnace electrode intelligent controller includes hardware and software. The hardware part includes the box body 1 and the liquid crystal touch screen 2 installed on the box body 1, the single-board computer installed in the box body 1, and multiple digital / analog input and output. channel module.

[0089] The single-board computer adopts the model PC / 104-1621CLDN, and the digital / analog input and output channel module adopts the module 104-A726 with 16 digital inputs, 16 digital outputs and 6 analog output channels, and 32 analog input channels 104 -32ADT is stacked and inserted, and the LCD touch screen 2 adopts TPC-064. The corresponding terminal pins of the CPU chip of the single-board computer are respectively connected to the hard disk, DVD drive, keyboard, mouse, USB interface, touch screen display card and Ethernet card through wires, and all interfaces are fixedly installed outside the casing.

[0090] The multiple digital / analog input and output ...

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PUM

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Abstract

The invention relates to an intelligent controller of an electric furnace electrode. A plurality of digital/analog input and output channel modules are spliced with a single-board computer, and exterior terminals of the modules are connected with an electric furnace electrode unlocking operation switch, an elevating operation switch, a control valve of a locking device, a control valve of an elevating device, an upper and a lower space-limiting switches of a furnace cover, a manual/automatic switching switch, a current and voltage detection end, a current setting potentiometer, a transformer reactor shift and a fault comprehensive signal of an electric furnace control system. The electrode adjusting calculation method consists of an automatic arcing algorithm of equal arcing distance, a window current integrator overcurrent control algorithm, and a near reverse internal model control method based on a LSSVM-NARMA model. The electrode adjusting algorithm also comprises a PID control method, provides modeling data for the reverse internal model control method, is an alternative control method, and has the characteristic of quick and accurate electrode adjustment. The invention can significantly shorten the smelting period, save the electric energy, reduce the energy consumption, and is suitable for organizations of electric furnace smelting, and the like.

Description

technical field [0001] The invention relates to a controller, in particular to an intelligent internal model inverse control method and an integrated control device for electric furnace steelmaking. Background technique [0002] In recent years, electric arc furnace steelmaking has become one of the main steelmaking methods. The electrode lifting adjustment system is an important part of the electric arc furnace, and its working effect directly affects the output, quality and energy consumption of steel. Therefore, it is of great significance for iron and steel production to find a simple and effective method to make the electrode adjustment system have better performance in the smelting process. The electrode regulation system is a time-varying system with multivariable, nonlinear and strong coupling, and the random interference is very serious. PID control is mainly used in practical industrial processes. PID control has a simple structure, is easy to implement and has g...

Claims

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Application Information

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IPC IPC(8): H05B7/152
CPCY02P10/25
Inventor 毛志忠贾明兴李鸿儒袁平李磊
Owner NORTHEASTERN UNIV
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