控制

The equipment can compensates reactive and eliminate harmonic incurrent of distribution network, the main topology of equipment includes an inverter circuit and a DC capacitance.

因为配网侧电压相对较低，电路中可以采用开关速度高的IGBT作为开关元件，控制方式可采用直接电流控制，本文介绍的单周控制有源电力滤波器本质就是属于直接电流控制方法的范围。

Considering the technical requirements,the stability andthe steady performance,the quantitative requirement for sampling frequency is present indiscrete control system.Considering that there is a step delay in discrete control in grid on inverter with a Lfilter,the quantitative relationship between critical FCCR and sampling frequency isanalyzed,and the steady performance is analyzed.Considering the technical requirements,the stability and the steady performance,the quantitative requirement for samplingfrequency is present in discrete control system with a step delay.

在L型并电加热管网中，考虑到离散化控制存在滞后一拍的问题时，本文分析并获得了离散PI控制系统稳定范围时闭环根临界频率fnmax和采样频率fs之间的定量关系；针对存在滞后一拍可能引起系统稳态特性下降的问题，分析了PI控制滞后一拍对频域特性造成的影响，综合考虑并网指标、稳定性要求和离散化对稳态特性影响三个主要因素，推导了存在滞后一拍的离散化PI控制对最低采样频率的量化要求。

Power plant's control exist inharmonic phenomenon, heat engineering control and electrical control don't join together. This paper analysis the electrical control mode, bring forward the new mode of engineering control and electrical control join together.

发电厂控制系统存在严重的不协调现象，热工控制的DCS系统已经相当成熟，但是电气系统的控制却与热工控制分离，电气保护装置独立配置，形成大量的小型信息孤岛，就地面板操作、显示。

Confirmatory factor analysis was deployed to study the 3~5 years old preschool children's structure of self control, and the results show that it consists of four dimensions: continence, persistence, consciousness and self imposed delay of gratification, the relations among them are isolative and correlative. According to the results, we designed two observing field experiments, and compared the results from experiments and questionnaire, it can be found that these two results with higher conherence, and it shows that the questionnaire has good reliability and validity.

本研究通过编制&幼儿自我控制能力发展教师评定问卷&，运用验证性因素分析的方法得出了3～5 岁幼儿自我控制能力的结构，通过具体的实验验证了问卷的效度，并进一步分析了儿童自我控制的年龄差异和性别差异，简单探讨了幼儿自我控制各个维度之间的关系。

Analysis the operating principle of highest power factor convertor for monocyclic control, and the design process and parameters of each part of circuit are given, and then research the convertor using OrCAD.

分析单周期控制的高功率因数变流器的工作原理，给出基于单周期控制的航空高功率因数变流器主电路和控制电路各组成部分的设计及参数，并应用OrCAD对基于单周期控制的高功率因数变流器进行仿真研究。

With the accumulation of field data study and the application of cell transmission model in urban network traffic control successfully and the development of network reliability study, the acquaintance degree of oversaturation enforces gradually.

随着实际控制平台上拥挤状态控制研究的积累、元胞传输模型在城市路网交通控制问题中的突破性应用和路网可靠性问题研究的深入，使得对过饱和控制问题的认识程度逐步加深。

To avoid large amounts of computations of the traditional generalized predictive control algorithms, a fast algorithm of GPC is presented by off-line appr oximate computation of the future control sequences.

针对传统广义预测控制算法的计算量大这一缺陷，通过对未来的控制序列的离线近似计算，而只精确求解当前时刻要实施的控制量，提出了一种广义预测控制的快速算法。

The invention discloses a software security ensuring method based on program internal behavior monitoring which comprises,(1) the language code analyzer analyzing the program control stream, adding description control stream transformation code, adding assisting protection function for the program, then compiling into performable program,(2) transferring the treated program to a program charging device, determining whether the current program has a protection function,(3) submitting operation system the protection information of the progress and setting the program progress protection sign to TURE,(4) the operation system kernel determining the progress protection sign, go to step 7 if the result is FALSE,(5) the operation system kernel examining the progress control stream conversion consistency,(6) continuing the progress,(7) finishing.

本发明公开了一种基于程序内部行为监控的软件安全保障的方法，其步骤是：1。语言代码分析器分析程序的控制流，并添加描述控制流转换代码，添加程序的协助保护功能，然后编译成可执行程序；2。处理过的程序递交给程序加载器，判断当前程序是否具有保护功能，如果有则加载适当的运行环境，否则转到4；3。向操作系统递交该进程的保护信息并设置该程序进程的保护标志为真；4。操作系统内核一旦获得控制权利，则判断进程的保护标志，如果为假转到7；5。操作系统内核检查该进程控制流转换的一致性，如果不一致，发出安全警告，并杀死进程，转到7；6。继续运行进程；7。结束。本发明的显著优点是提高了安全保障方法的精确性和通用性。

Based on some principal rules of brittle rocks polyaxial tests and previous researches, three controlling failure types for brittle rock are obtained. The first type represents the brittle failure controlled by extension microcrack under the condition of lower hydrostatic pressure; the second represents the ductile failure controlled by friction sliding action under the condition of higher hydrostatic pressure when microcrack is close; and the third represents brittle-ductile failure type controlled by multiple factors mentioned above under the condition of high hydrostatic pressure when some microcracks are open and others are close.

通过分析脆性岩石多轴试验中的强度和破坏规律，在已有研究成果基础上，将其强度和破坏控制类型主要归结为3种：类型1，低静水压力时裂缝张开扩展，主要表现为张性微裂缝控制型脆性破坏；类型2，静水压力很高时，裂缝闭合，主要表现为摩擦滑移控制型延性破坏；类型3，处于两者之间时，微裂缝一部分张开，一部分闭合，主要表现为两者复合控制型脆延破坏。

In aim at the complicity and high-dimensional state-space for the controlled system, it simplifies the calculation of geometric polytope by optimize with ellipsoidal approximate techniques, and the robust control effectiveness near to the optimal.

本论文所提示的基于几何理论的约束非线性控制算法是建立在最大输出允许集合的基础上，运用状态空间的有界子集表达鲁棒时优离散时间控制问题的价值函数，通过逆序计算该价值函数的水平集合，求得其所需的控制量，针对被控系统的复杂性及高维状态空间问题，运用椭球近似技术予以优化，使得几何多面体的计算得以简化，且鲁棒控制效果接近最优。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。