查询词典 grid

In this paper a new contingency screening and ranking method is formed by combiningiterative filtering screening technology with continuation power flow analysis. Researchingpreventive control policy in reactive power compensation and load control when themargin of stability is serious, and reciprocal math model is given;through the exempleof IEEE39 typical system , the availability of the discussed methods in this dissertationwas approved. Aimed at the real grid, the contingency screening analysis and preventivecontrol policy based on Beijing power grid is discussed;the static voltage stabilityanalysis software based on figure draw of Beijing grid is realized, and the software hasthe junction to BPA .

论文提出了将迭代过滤筛选技术和连续潮流法相结合的事故筛选分析方法；从无功补偿控制和负荷控制两方面研究了系统裕度紧张时的预防控制策略，给出了相应的数学模型；采用IEEE39节点的标准系统算例，验证了本文提出的静态电压稳定事故筛选分析方法的可行性；针对实际电网讨论了基于北京电网的事故筛选分析和预防控制策略；通过与BPA接口实现了基于北京电网图形平台的静态电压稳定分析软件。

Aiming at a global load balance among grid resources,an agent-based grid resource scheduling model is proposed in this paper,which not only effectively increases the collaborative cooperation but also eases the efficient management of multiple grid resources by the employment of agent technology.

提出一种基于Agent的、旨在实现负载平衡的网格资源调度模型，着重描述该模型中各个模块的功能以及调度流程，并利用Agent的智能交互，进行协同合作以管理复杂的网格资源。

In additon,$30 billion will go to smart power grid, advanced battery technology and energy efficiency measures including the Smart Grid Investment Program to modernize the electricity grid to make it more efficient and reliable, U.S.

当然也有为提供5亿美元使得在 DOD 技能上去的进步的条款，包括部队建筑和大约4.5亿美元建造国家办公建筑这样更多的能源效益，目的是为了长期实现为缴税者节省金钱。

Square-wave passive standby UPS based on MCU is presented. There are some functions of the system: realizing the uninterruptible power supply according to following the track of grid and changing grid and inverter in phase when grid is abnormal; advanced battery management; communication and supervision with PC. The principle of the system is analyzed.

研究了一种单片机控制的单相方波输出后备式UPS，该系统实现了在市电不同状态下，系统逆变输出与市电的同相切换，实现了对设备的不间断供电；实现了对蓄电池的智能管理；可以与 PC机进行通讯，便于用户监控等功能。

The results show that the discharge capacity of expanded grid of copper battery is improved obviously at low discharge rates; the EIS research describes that expanded grid of copper electrode has better electrochemistry activity. The scanning electron microscopy images reveal that the sponge Pb crystals of expanded grid of copper negative electrode are smaller at charge state, and the PbSO4 crystals are smaller at discharge state.

结果表明：在低倍率放电情况下，拉网铜板栅VRLA电池可以明显提高电池负极的放电容量；通过EIS研究发现，拉网铜板栅负极具有更好的电化学反应活性；SEM检测结果表明，充电状态下，拉网铜板栅电极中海绵铅结晶颗粒小；放电状态下，拉网铜板栅负极的PbSO4结晶颗粒较小。

In Grid service, a new approach of the grid resource selecting Lased on Gene Expression Programming was proposed for aiming at Grid resource domain split technique.

在网格服务中，为有效地在域内合理选取恰当的资源分配给&服务消费者&，提出了基于基因表达式编程的网格资源自学习选取算法。

The numerical calculation of grounding grid in large-scale substation under different conditions are carried out, including the breaking of grounding grid occurred in its edge part, in its mid-position as well as in different places simultaneously, thus the variation law of connective resistance of grounding grid under different conditions is obtained.

通过模拟计算，研究了变电站接地网导通电阻的变化规律，对不同情况下的接地网进行了模拟计算，包括边缘部分断开、中间部位断开以及多处部位断开，得出了不同情况下导通电阻的变化规律，结合变电站导通电阻的测试，将测试数据与计算数据进行比较，可判断接地网存在问题的位置。

Power engineer may also work on systems that do not connect to the grid, called off-grid power systems, which in some cases are preferable to on-grid systems.

电力工程师可能也是工作的制度，不接驳电网，叫离网发电系统，在某些情况下是最好的网格系统。

The main way of the method of beam grid is to simulate the top structure with a equivalent beam grid, and concentrates the scattered bending rigid and tension rigid in slab or box beam into the close equivalent beam grid, and the longitudinal rigid of the real structure is concentrated in longitudinal beam rigid, and the lateral rigid is concentrated in lateral beam rigid.

梁格法的主要思路是将上部结构用一个等效梁格来模拟，将分散在板式或箱梁每一区段内的弯曲刚度和抗扭刚度集中于最邻近的等效梁格内，实际结构的纵向刚度集中于纵向梁格构件内，而横向刚度则集中于横向梁格构件内。

The key technologies of Grid Method including grid divided in basin, impact radius of rainfall and number of reference rainfall stations have been discussed with example. The parameters of Grid Method have been selected through trial and error. Using simple random sampling to simulate the failure to collect rainfall, the relation between surface rainfall calculation error and station density, station distribution, uneven spatial distribution of rainfall has been sought.

论文探讨了流域网格剖分、降雨影响半径、搜索半径范围和参证站数量等关键技术，研究了网格法参数的优选，并采用简单随机抽样模拟降雨缺测情况，给出了面雨量计算误差与流域站网密度、均匀度、降雨分布不均匀性指标的关系。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。