相关实验视频
Updated: Jan 12, 2026

09:17
Surrogate Model Development for Digital Experiments in Welding
Published on: March 28, 2025
1.8K
以数据驱动的建模和预测控制高质量的特殊钢电渣再炼过程的时间延迟
Xiaoqing Jiang1, Yizhe Wang2, Shuang Kong1
1College of Information Science and Engineering, Northeastern University, Shenyang 110819, China.
ACS omega
|November 3, 2025
概括
这项研究引入了用于电渣再化 (ESR) 过程的新控制算法. 先进的模型预测控制有效地管理时间延迟和不确定性,以改善融速度和电流控制.
科学领域:
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
- 控制系统工程 控制系统工程
背景情况:
- 电渣再化 (ESR) 是生产高质量的金属合金的关键过程.
- 控制ESR流程,特别是管理时间延迟和不确定性,是一项挑战.
- 现有的控制方法经常与ESR的动态复杂性作斗争.
研究的目的:
- 为电渣再化 (ESR) 过程开发先进的控制算法.
- 为了有效地管理ESR系统固有的非线性多源时间延迟.
- 通过解决工艺的不确定性来改善重新化电流和化速度的控制.
主要方法:
- 在位置控制下使用第三阶函数建模ESR过程.
- 用递归最小平方算法估计模型参数.
- 使用一维搜索策略确定时间延迟.
- 设计基于状态增强的模型预测控制 (MPC) 算法,以处理时间延迟.
- 使用滚动优化机制来补偿相位滞后和反纠正不确定性.
主要成果:
- 为ESR系统创建了一个新的无时间延迟的增强状态空间模型.
- 拟议的MPC算法证明了对相位延迟的有效补偿和抑制热惯性等不确定性的有效补偿.
- 实验验证证了与现有方法相比,开发的控制算法的可行性和优越性.
结论:
- 开发的模型预测控制算法为控制具有时间延迟的电渣再化过程提供了强大的解决方案.
- 该方法有效地解决了工艺的不确定性和动态复杂性,从而加强了对再融电流和融速度的控制.
- 这项研究在ESR技术的自动化和优化方面取得了重大进展.
相关概念视频
Steel Manufacturing
1.4K
Steel manufacturing is a multi-stage process that begins by smelting iron ore into cast iron in a blast furnace. This initial stage involves layering iron ore with coke, a type of fuel, and crushed limestone within the furnace. The coke is ignited with a high volume of air, leading to the creation of carbon monoxide, which acts to reduce the iron ore to pure iron.
During this smelting process, limestone plays a crucial role by forming slag. Slag captures impurities within the molten iron, such...
During this smelting process, limestone plays a crucial role by forming slag. Slag captures impurities within the molten iron, such...
1.4K
Mechanical Characteristics of Steel
1.0K
The mechanical characteristics of steel are assessed through various tests that evaluate its strength, toughness, and flexibility. These tests include tension, torsion, impact, bending, and hardness assessments, each providing crucial information about steel's suitability for specific applications.
The tension test is fundamental for determining tensile strength. In this test, a steel specimen is stretched using a gripping device until it breaks. The data collected during this test are used...
The tension test is fundamental for determining tensile strength. In this test, a steel specimen is stretched using a gripping device until it breaks. The data collected during this test are used...
1.0K
Time-Domain Interpretation of PD Control
358
Proportional-Derivative (PD) control is a widely used control method in various engineering systems to enhance stability and performance. In a system with only proportional control, common issues include high maximum overshoot and oscillation, observed in both the error signal and its rate of change. This behavior can be divided into three distinct phases: initial overshoot, subsequent undershoot, and gradual stabilization.
Consider the example of control of motor torque. Initially, a positive...
Consider the example of control of motor torque. Initially, a positive...
358
PD Controller: Design
604
In automotive engineering, car suspension systems often employ Proportional Derivative (PD) controllers to enhance performance. PD controllers are utilized to adjust the damping force in response to road conditions. A controller, acting as an amplifier with a constant gain, demonstrates proportional control, with output directly mirroring input.
Designing a continuous-data controller requires selecting and linking components like adders and integrators, which are fundamental in Proportional,...
Designing a continuous-data controller requires selecting and linking components like adders and integrators, which are fundamental in Proportional,...
604
PID Controller
639
Proportional-Integral-Derivative (PID) controllers are widely used in various control systems to enhance stability and performance. In a thermostat, it adjusts heating or cooling based on the temperature difference between the actual and desired levels. They are often used in automotive speed systems, effectively managing sudden speed changes while maintaining a constant speed under varying conditions. On the other hand, PI controllers, commonly employed in voltage regulation, enhance stability...
639

