摘要：The construction of the TGP has proceeded smoothly since its commencement of construction in 1994 and the construction quality is good in general. The construction proceeds in accordance with the master project schedule in preliminary design approved by the central government and the investment can be controlled within the total budget of the preliminary design. The Changjiang Water Resources Commission, taking charge of the general design jobs of the TGP, has consistently paid attention to the project quality in the first place and carried out large amount of investigation, design and scientific research work. This paper makes an overall summarization and presentation on important technical issues in the design, such as dam, powerhouse structure, permanent ship locks, ship lift, project safety monitoring, main river closure and the 2nd stage cofferdam, mechanical and electric design etc., and put forwards a lot of suggestions about optimizing design schemes and measures for smoothing away construction difficulties in accordance with construction progress.

摘要：It is proposed in this paper the control system of a MEMS strong-link for PC authentication system,which is composed of MEMS strong-link, interface card and dedicated software. The strong-link is comprised of amulti-try counter-meshing gears （CMG） discrimination device based on micro electromeehanical system （MEMS）technology. The control system is consist of micro-motor driving system, electrical control system and dedicatedsoftware program. The PCI-7248 DIO extending card and L6234 bmshless DC motor driven IC are applied for thecontrol of MEMS strong-link. The authentication system on PC startup is controlled by the program in BIOS chip,which gets the control during the POST of PC. The discrimination device has the function of automatic resettingwith correct code, which can be tried 3 times. The success rate in 1000 times is 100%.

摘要：在飞行器舵机优化控制问题的研究中,针对电动舵机快时变、非线性的特点设计了改进自抗扰控制器,并根据现代控制理论给出了控制器参数的选取准则。为了进一步提高系统的性能,采用多学科优化软件iSIGHT中集成的多目标遗传算法NSGA-Ⅱ对改进自抗扰控制器进行参数整定,以某型电动舵机系统为被控对象,将优化前后的控制器进行仿真对比。结果表明阶跃响应时,超调量为0.098%,ITAE为0.113,上升时间为0.00098s;正弦信号响应时,稳态误差为4.8。结论表明采用优化后的控制器,舵机系统动态和静态性能得到了改进,证明设计的控制器具有较高的控制精度和较好的鲁捧性。