针对煤矿采煤机电系统存在的集成度低、可靠性不足、效率低下、智能化水平不高等问题,提出一种基于智能控制技术的煤矿采煤机电系统优化设计方案。通过综合应用控制器局域网络(Controller Area Network,CAN)总线技术、冗余设计、参数优...针对煤矿采煤机电系统存在的集成度低、可靠性不足、效率低下、智能化水平不高等问题,提出一种基于智能控制技术的煤矿采煤机电系统优化设计方案。通过综合应用控制器局域网络(Controller Area Network,CAN)总线技术、冗余设计、参数优化匹配及深度强化学习等智能算法(Deep Reinforcement Learning,DRL),对采煤机电液系统进行全面改进和提升。搭建机-电-液联合仿真平台,对比分析不同控制方案的性能表现,验证优化设计的可行性和有效性。结果表明,优化后的采煤机电系统在节能效率、动态质量、自主作业能力等方面均得到显著提升,为实现采煤装备的智能化升级提供了新思路。展开更多
The reliability and maintainability of electrical system of drum shearer at Parvade. 1 Coal Mine in central Iran was analyzed. The maintenance and failure data were collected during 19 months of shearer operation. Acc...The reliability and maintainability of electrical system of drum shearer at Parvade. 1 Coal Mine in central Iran was analyzed. The maintenance and failure data were collected during 19 months of shearer operation. According to trend and serial correlation tests, the data were independent and identically distributed （iid） and therefore the statistical techniques were used for modeling. The data analysis show that the time between failures （TBF） and time to repair （TTR） data obey the lognormal and Weibull 3 parameters distribution respectively. Reliability-based preventive maintenance time intervals for electrical system of the drum shearer were calculated with regard to reliability plot. The reliability-based maintenance intervals for 90%, 80%, 70% and 50% reliability level are respectively 9.91, 17.96, 27.56 and 56.1 h. Also the calculations show that time to repair （TTR） of this system varies in range 0.17-4 h with 1.002 h as mean time to repair （MTTR）. There is a 80% chance that the electrical system of shearer of Parvade. 1 mine repair will be accomplished within 1.45 h.展开更多
文摘针对煤矿采煤机电系统存在的集成度低、可靠性不足、效率低下、智能化水平不高等问题,提出一种基于智能控制技术的煤矿采煤机电系统优化设计方案。通过综合应用控制器局域网络(Controller Area Network,CAN)总线技术、冗余设计、参数优化匹配及深度强化学习等智能算法(Deep Reinforcement Learning,DRL),对采煤机电液系统进行全面改进和提升。搭建机-电-液联合仿真平台,对比分析不同控制方案的性能表现,验证优化设计的可行性和有效性。结果表明,优化后的采煤机电系统在节能效率、动态质量、自主作业能力等方面均得到显著提升,为实现采煤装备的智能化升级提供了新思路。
文摘The reliability and maintainability of electrical system of drum shearer at Parvade. 1 Coal Mine in central Iran was analyzed. The maintenance and failure data were collected during 19 months of shearer operation. According to trend and serial correlation tests, the data were independent and identically distributed （iid） and therefore the statistical techniques were used for modeling. The data analysis show that the time between failures （TBF） and time to repair （TTR） data obey the lognormal and Weibull 3 parameters distribution respectively. Reliability-based preventive maintenance time intervals for electrical system of the drum shearer were calculated with regard to reliability plot. The reliability-based maintenance intervals for 90%, 80%, 70% and 50% reliability level are respectively 9.91, 17.96, 27.56 and 56.1 h. Also the calculations show that time to repair （TTR） of this system varies in range 0.17-4 h with 1.002 h as mean time to repair （MTTR）. There is a 80% chance that the electrical system of shearer of Parvade. 1 mine repair will be accomplished within 1.45 h.
