Unlock instant, AI-driven research and patent intelligence for your innovation.

Intelligent Control Method of Tundish Channel Electromagnetic Induction Heating Power Supply

A technology of electromagnetic induction heating and intelligent control, applied in the direction of manufacturing tools, electrical components, metal processing equipment, etc., can solve the problem that the influencing factors are not well handled, achieve stable secondary cooling water distribution process, avoid premature solidification, increase The effect of the number of continuous pouring furnaces

Active Publication Date: 2021-04-30
HUNAN UNIV
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most electromagnetic induction heating power supplies do not deal with these influencing factors well

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Intelligent Control Method of Tundish Channel Electromagnetic Induction Heating Power Supply
  • Intelligent Control Method of Tundish Channel Electromagnetic Induction Heating Power Supply
  • Intelligent Control Method of Tundish Channel Electromagnetic Induction Heating Power Supply

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] The overall control strategy of the tundish electromagnetic heating high-power cascaded frequency conversion power supply includes three parts: the control of the front-stage three-phase PWM rectifier, the control of the rear-stage full-bridge inverter and the constant temperature control of the molten steel in the tundish. Power control strategy for thermostatic control. The corresponding control targets are the input current of the pre-stage rectifier, the output load current of the post-stage inverter and the temperature of the load molten steel.

[0033] The pre-stage three-phase PWM rectifier of each power unit module mainly controls the input current, realizes accurate tracking of the input current, and solves the problem of voltage fluctuation on the DC side. Taking power unit module 1 as an example, the control block diagram of the pre-stage three-phase PWM rectifier is as follows: figure 2 shown.

[0034] figure 1 The power unit module 1 in , can be obtaine...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an intelligent control method for a tundish channel-type electromagnetic induction heating power supply, which adjusts the degree of superheat according to the actual temperature of the ladle at different stages of casting, thereby realizing constant temperature casting with low superheat It can increase the equiaxed grain rate and improve the quality of the slab, and can increase the number of continuous casting furnaces, stabilize and increase the casting speed, and effectively improve the continuous casting yield and production efficiency; at the same time, constant temperature casting can also avoid premature solidification of molten steel and prevent nodules Accidents such as freezing and returning to the furnace to stop pouring, and stabilizing the secondary cooling water distribution process.

Description

technical field [0001] The invention relates to the field of electromagnetic induction heating control, in particular to an intelligent control method for a tundish channel type electromagnetic induction heating power supply. Background technique [0002] In recent years, with the advancement of power electronics and semiconductor technology, the emergence of high-power and high-efficiency variable frequency power supplies has greatly promoted the development of induction heating technology for steel heat treatment. The practice of continuous casting technology development shows that constant temperature pouring with low superheat plays an important role in improving the quality of slab and stabilizing operation. The tundish induction heating power supply is used as the medium for its electric energy conversion. Its input current affects the power quality of the public grid, and its output current is directly related to the temperature control effect of the tundish. The tund...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B22D41/01H02M5/458
CPCB22D41/01H02M5/4585
Inventor 罗安向新星黎燕陈燕东周小平徐千鸣周乐明伍文华何志兴黄旭程马伏军
Owner HUNAN UNIV