【摘 要】
：
高炉炼铁过程通过增煤减焦实现节能减排目标,针对人工操作模式存在主观性、粗糙性和滞后性难以实现增煤减焦的问题,采用上下协同优化控制方法,一方面通过上部提前匹配减焦方式维持高温区热平衡,另一方面通过富氧鼓风保证下部喷入煤粉的高消化率,使煤粉在风口回旋区充分燃烧.进而从控制角度解析描述增煤减焦过程,将铁水温度的稳定控制问题转换为风口回旋区温度的稳定控制问题,提出增煤减焦协同优化控制策略及风口回旋区温度对焦炭和煤粉不同滞后时间的稳定控制策略.首先,建立煤粉燃烧系统的T-S模糊模型,将辨识得到的喷煤最大时延区间进行
【机 构】
：
内蒙古科技大学信息工程学院,内蒙古 包头 014010;内蒙古包钢钢联股份有限公司炼铁厂,内蒙古 包头 014010
论文部分内容阅读
高炉炼铁过程通过增煤减焦实现节能减排目标,针对人工操作模式存在主观性、粗糙性和滞后性难以实现增煤减焦的问题,采用上下协同优化控制方法,一方面通过上部提前匹配减焦方式维持高温区热平衡,另一方面通过富氧鼓风保证下部喷入煤粉的高消化率,使煤粉在风口回旋区充分燃烧.进而从控制角度解析描述增煤减焦过程,将铁水温度的稳定控制问题转换为风口回旋区温度的稳定控制问题,提出增煤减焦协同优化控制策略及风口回旋区温度对焦炭和煤粉不同滞后时间的稳定控制策略.首先,建立煤粉燃烧系统的T-S模糊模型,将辨识得到的喷煤最大时延区间进行划分,在不同时延子区间建立T-S模糊子模型;然后,采用并行分布补偿(paral-lel distributed compensation,PDC)原理设计状态反馈控制器,并基于Lyapunov稳定性理论与线性矩阵不等式(linear matrix inequality,LMI)方法求解出系统稳定的充分条件.仿真实验验证了模型及状态反馈稳定控制器的有效性.
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