基于粒子滤波的采煤机截割负载特性分析  

Characteristic analysis of shearer cutting load based on particle filter

作　　者：徐志鹏[1] 王忠宾[1] 

机构地区：[1]中国矿业大学机电工程学院,江苏徐州221116

出　　处：《煤炭学报》2011年第4期696-700,共5页Journal of China Coal Society

基　　金：国家高技术研究发展计划(863)重点资助项目(2008AA062202);教育部霍英东基金优选资助项目(114003);教育部博士点新教师基金资助项目(20070290538)

摘　　要：针对以往采煤机截割负载测量方法所存在的通用性不强,易受振动和冲击干扰等问题,建立了截割负载与截割电机电流间的理论模型,提出了基于粒子滤波的采煤机截割负载分析方法。在西安煤矿机械有限公司电气分厂的电机负载模拟试验台上针对MG900/2210-WD型电牵引采煤机进行了模拟加载试验,并运用粒子滤波方法对试验结果进行了处理和分析。分析结果表明:截割电机电流信号是一个滞后于截割负载23 ms的时延信号,两者的互相关系数为0.71;电流信号主要集中在10 Hz以内的低频带,不易受到电网波动以及煤块冲击的干扰,对于MG900/2210-WD型采煤机而言有用频率为1.63 Hz;粒子滤波能够有效的滤除电流信号中的高频干扰,且当粒子数达到170之后滤波效果趋于稳定。According to the former shearer cutting load method has less generality and noise immunity for vibration,structured the theoretical model of cutting load and current,and proposed a new analysis method based on particle filter.The simulation experiment was done in the electric branch factory of Xi＇an Coal Mining Machinery Co.,Ltd.,with the shearer of MG900/2210-WD,and analyzed and treated the experimental data.The final results show that the cutting current is a 23 ms delay signal of cutting load,and cross-correlation of them is 0.71;the frequency of cutting current is within 10 Hz,which is immune to the interference of electric network fluctuation and coal impact,for shearer of MG900/2210-WD the useful frequency is 1.63 Hz;particle filter can remove high-frequency noise effectively,and the filter effect becomes steady when the particle number is greater than 170.

关 键 词：粒子滤波 采煤机 截割负载特性 

分 类 号：TD421.64[矿业工程—矿山机电]