A two-stage stabilizing loop-shaping design of an H~∞ controller for a class of complex plant

采用H∞ 回路成形方法 ,结合两步镇定过程 ,给出了一类挠性结构的H∞ 控制器的设计及仿真结果 .在挠性空间结构控制器设计中经常采用的加内环方法实际上是一种两步镇定过程An attitude controller is designed for a flexible structure using H ∞loop shaping approach together with two stage stabilizing procedure and simulation results are presented. The inner loop design method usually used in flexible structures control is in fact a two stage stabilizing procedure

Robust Control Technigue of Flexible Satellite Attitude Movement

具有挠性振动和液体晃动的新一代挠性卫星姿态运动是一个不确定系统 ,运用 H∞ 优化与 μ综合技术研究具有抑制振动和晃动能力以及强鲁棒性的卫星姿态控制系统设计问题 ,并对所提出的几种鲁棒控制系统设计方案进行计算机仿真和全物理仿真实验研究 .Attitude movement of new style flexible satellite is uncertain systems. The control system design problem with the suppession of the flexible structure vibration and the liquid sloshing as well as the strong robustness was studied by using H ∞ optimal method and μ synthesis technigue. The computer simulation and physical simulation experiment were also studied for some robust control schemes.中国空间技术研究院“九五”预研重点课题 (无编号

APPLICATION of μ APPROACH IN THE ROBUST CONTROLLER DESIGN FOR FLEXIBLE SPACECRAFT

本文通过对带有挠性附件的一类航天器的鲁棒控制器之设计说明μ方法在不确定挠性航天器姿态控制中的应用。该方法不仅能有效地处理外部干扰以及未建模动态，而且还能直接讨论模型参数的变化，具有较大的应用潜力。但μ最优控制器倾向于激发系统未建模动态，在实际应用中必须特别注意In this paper, a robust controller For a spacecraFt with Flexible appendage is presented with the aim to exponent the application of μ -synthesis approach in the control of uncertain Flexible spacecraFt.The approach can not only deal with external disturbance and unmodelled dynamics eFFiciently, but can also deal with parameter variations directly.But the μ -optimal controller tends to excite the unmodelled dynamics.Attention must be paid to this phenomenon.中国空间技术研究

A Method For Design of a Low order Controller

阐述一种设计低阶稳定化控制器的方法，此控制器的阶数不超过对象输出的个数，并给出例子阐明这个结论.A new method For design of low order stabilized controller is proposed.The order of stabilized controller is not more than the number of plant outputs, and a numerical example is provided to illustrate the result

A Survey of the Development of H_∞ Theory For Linear Finite-Demensional Systems

本文对有限维线性时变或时不变系统的H∞最优控制理论的发展作了初步概述，特别对采用频域方法与时域方法结合的文献做了比较与说明，并对它们研究的内容、方法和结果进行了简明阐述与分析。This paper gives an outline of the development of H∞ -optimal control theory For linear Finite- demensional systems, especially makes a comparision among the reFerences which adopt a method that combines Frequency-domain methods and time-domain methods, and we make a concise analysis of their contents, methods and results

Robust Controller Design of New Style Satellite′s Attitude Movement

研究H∞/μ综合方法在新型卫星姿态运动的鲁棒控制器设计中的应用.讨论新型卫星姿态运动中卫星姿态控制以及挠性体振动抑制和液体晃动抑制等问题，同时阐述一个确定低阶控制器阶数的判据.The robust controller design of liquid satellite′s attitude movement was studied by using H ∞/μ method.Attitude control, as well as the suppression of the flexible structure′s vibration and the liquid sloshing, was discussed.A test for deciding the order of reduced order controller was formulated.中国空间技术研究院预研资

Reduced-order Robust Controller Design of Flexible Satellite Attitude

研究多挠性充液卫星姿态运动的低阶鲁棒控制器设计问题．综合应用模态截断、Ｈ∞回路成形和Ｈ∞氏平衡截断方法设计低阶鲁棒控制器．模态截断获得适当阶数的卫星姿态运动模型；Ｈ∞回路成形方法设计鲁棒控制器；Ｈ∞平衡截断技术实现控制器降阶．满阶对象和低阶控制器组成闭环进行计算机仿真．This paper studies the reduced-order robust controller design of flexible satellite attitude. Mode truncation, H∞loop-shaping and H∞balanced truncation are being used during the controller designing. The model of satellite attitude movement is simplified by mode truncation, an robust controller is designed by H∞loop-shaping, and then, the robust controller is reduced by H∞balanced truncation. The closed-loop system, consisted by the reduced-order robust controller and the full-order plant, is simulated by computer.中国空间技术研究院预研课题;; 教育部重点211工程项

The Application of Programmable Controller to a Stone-Cutted Machine

将可编程序控制器（PC）成功地应用于圆盘切石机上.实现了全自动切割过程；对PC外围电路具有故障诊断功能；可指示维修期限.给出了PC内部“COunTEr”和“TIMEr”预设值的外部调整方法，以及I/O信号扩展的一种解决办法.The authors successFully apply a Programmable controller to a circular stone-cutted machine,realizing automation of the process of cutting stone.The authors develope two systems: one can diagnose Faults of the external circuit of the PC, the other can display maintenance dateline of the PC.In the end, we provide a particular method For the external adjustment of the preset value of the Counter and Timer of the PC, and a method of I/O expansion

Computer three-dimensional Visual Real-time Simulation of Flexible Satellite H_∞ Control

研究挠性卫星Ｈ∞鲁棒控制算法的计算机三维可视化实时仿真技术，实现了挠性卫星飞行姿态的计算机三维动画仿真，直观地揭示了控制算法的效果，同时为控制系统的图形仿真开辟一条新途径．The computer three dimension simulative technology of flexible satellite which is controlled by H∞, robustious control algorithm was studied. The computer three dimension animation simulation of fly attitude of flexible satellite was came true. The effect of control method is revealed intuitively. A new approach of graph simulation about control system was inaugurated.中国空间技术研究院预研课题和教育部重点211工程项