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安家岭综放工作面工艺观测及系统可靠性分析
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作者 汪子勇 李春睿 《煤矿安全》 CAS 北大核心 2012年第10期210-213,共4页
对安家岭煤矿B901综放工作面进行了为期近1个月的工艺观测,并应用可靠性理论对回采工艺系统可靠性进行了分析。从具体内容上提出了综放工艺所需观测的环节,而且系统地提出了如何分析综放工作面回采系统的可靠性,实现了工作面的人机工时... 对安家岭煤矿B901综放工作面进行了为期近1个月的工艺观测,并应用可靠性理论对回采工艺系统可靠性进行了分析。从具体内容上提出了综放工艺所需观测的环节,而且系统地提出了如何分析综放工作面回采系统的可靠性,实现了工作面的人机工时利用率的提高及工作面设备故障的减少。 展开更多
关键词 工艺观测 系统可靠性 工时利用率 系统可靠度
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海涂冲刷观测工艺实践
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作者 叶峰 《水利水电技术》 CSCD 北大核心 2005年第7期78-80,共3页
海涂冲刷观测在使用声纳测深、测量仪器测量不甚合理的情况下,设计了一套适用于海涂冲刷观测、制作结构简单、使用成本低、具有自沉功能的冲刷观测装置工艺。
关键词 海涂冲刷 冲刷观测装置 观测工艺 观测装置 工艺实践 冲刷 海涂 仪器测量 成本低
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Improved Disturbance Observer (DOB) Based Advanced Feedback Control for Optimal Operation of a Mineral Grinding Process 被引量:4
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作者 周平 向波 柴天佑 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2012年第6期1206-1212,共7页
Advanced feedback control for optimal operation of mineral grinding process is usually based on the model predictive control (MPC) dynamic optimization. Since the MPC does not handle disturbances directly by controlle... Advanced feedback control for optimal operation of mineral grinding process is usually based on the model predictive control (MPC) dynamic optimization. Since the MPC does not handle disturbances directly by controller design, it cannot achieve satisfactory effects in controlling complex grinding processes in the presence of strong disturbances and large uncertainties. In this paper, an improved disturbance observer (DOB) based MPC advanced feedback control is proposed to control the multivariable grinding operation. The improved DOB is based on the optimal achievable H 2 performance and can deal with disturbance observation for the nonminimum-phase delay systems. In this DOB-MPC advanced feedback control, the higher-level optimizer computes the optimal operation points by maximize the profit function and passes them to the MPC level. The MPC acts as a presetting controller and is employed to generate proper pre-setpoint for the lower-level basic feedback control system. The DOB acts as a compensator and improves the operation performance by dynamically compensating the setpoints for the basic control system according to the observed various disturbances and plant uncertainties. Several simulations are performed to demonstrate the proposed control method for grinding process operation. 展开更多
关键词 disturbance observer model predictive control advanced feedback control grinding process steady-state optimization disturbance rejection
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