Short taphole length is one of the most troublesome problems of Baosteel's Corex - 3000 after its startup.Owing to the melter gasifier process,the char bed floated up and down as the level of hot metal and slag in...Short taphole length is one of the most troublesome problems of Baosteel's Corex - 3000 after its startup.Owing to the melter gasifier process,the char bed floated up and down as the level of hot metal and slag in hearth changing.These cause a lot of problems such as the heavy erosion of taphole areas and hard cast house work.The high second tapping flow is a noticeable characteristic of Corex process.The reasons of short taphole is analysed,and countermeasures are put into practice,some improvements are carried out in module 2 Corex -3000.展开更多
介绍了基于分数阶数的变阶数最小均方算法(Fractional tap-length least mean square,FTLMS),分析算法中迭代参数对FTLMS算法收敛性能的影响。利用系统输出误差随滤波器阶数及滤波器抽头权系数迭代过程逐渐减小的特点,提出了一种新的变...介绍了基于分数阶数的变阶数最小均方算法(Fractional tap-length least mean square,FTLMS),分析算法中迭代参数对FTLMS算法收敛性能的影响。利用系统输出误差随滤波器阶数及滤波器抽头权系数迭代过程逐渐减小的特点,提出了一种新的变迭代参数的变阶数LMS算法(Variable parameter FTLMS,VP-FTLMS)。在高噪声和低噪声环境下对本文提出的算法分别进行仿真验证,并与不同的滤波器阶数迭代参数设置下的FTLMS算法相比较。仿真结果表明,与FTLMS算法相比,本文提出的VP-FTLMS算法具有更快的阶数收敛速度及更小的稳态振荡,同时获得了较小的稳态额外均方误差(Excess mean square error,EMSE)。展开更多
文摘Short taphole length is one of the most troublesome problems of Baosteel's Corex - 3000 after its startup.Owing to the melter gasifier process,the char bed floated up and down as the level of hot metal and slag in hearth changing.These cause a lot of problems such as the heavy erosion of taphole areas and hard cast house work.The high second tapping flow is a noticeable characteristic of Corex process.The reasons of short taphole is analysed,and countermeasures are put into practice,some improvements are carried out in module 2 Corex -3000.
文摘介绍了基于分数阶数的变阶数最小均方算法(Fractional tap-length least mean square,FTLMS),分析算法中迭代参数对FTLMS算法收敛性能的影响。利用系统输出误差随滤波器阶数及滤波器抽头权系数迭代过程逐渐减小的特点,提出了一种新的变迭代参数的变阶数LMS算法(Variable parameter FTLMS,VP-FTLMS)。在高噪声和低噪声环境下对本文提出的算法分别进行仿真验证,并与不同的滤波器阶数迭代参数设置下的FTLMS算法相比较。仿真结果表明,与FTLMS算法相比,本文提出的VP-FTLMS算法具有更快的阶数收敛速度及更小的稳态振荡,同时获得了较小的稳态额外均方误差(Excess mean square error,EMSE)。
