中间包电磁加热电源控制方法及系统
By employing a linear self-rejecting current inner loop and temperature outer loop feedforward control method, the dynamic performance and anti-disturbance properties of the tundish electromagnetic heating power supply under external disturbances were solved, enabling rapid and precise control of molten steel temperature and improving steel quality and energy efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HUNAN UNIV
- Filing Date
- 2022-11-10
- Publication Date
- 2026-07-17
AI Technical Summary
Existing electromagnetic heating power supplies for tundishes have poor dynamic performance and immunity to external disturbances, making it difficult to achieve rapid and accurate control of molten steel temperature and affecting steel quality.
A linear active disturbance rejection current inner loop controller and a temperature outer loop feedforward control method based on a linear differential tracker are adopted. The linear active disturbance rejection current inner loop controller compensates the control quantity in real time, and the linear differential tracker feeds back the temperature change to improve the dynamic performance and disturbance rejection of the system.
It enables rapid and precise control of molten steel temperature under complex working conditions by using an electromagnetic heating power supply for tundishes, thereby reducing energy consumption and improving steel quality.
Smart Images
Figure CN115604877B_ABST