查询词典 grid current

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。

This paper presents the present development of rape combine home and abroad and the running principle of typical threshing and separating system. And comparative experimental investigations are done between different threshing and separating systems, such as rasp-bar-plate-tooth drum with grid concave, axial-flow -short-rasp-bar drum with grid concave and spike-tooth drum with grid concave.

本文详细介绍了国内、外油菜联合收割机研究现状及典型的物料脱粒分离系统的工作原理，对油菜联合收割机不同的脱粒分离部件组合的脱粒分离系统——纹杆—板齿-栅格凹板、短纹杆—栅格凹板、钉齿—栅格凹板脱粒分离系统进行了对比试验与研究。

With the development of grid computing technologies, Open Grid Services Architecture is becoming the defacto standard of grid architecture.

随着网格计算技术的发展，开放网格服务体系结构成为网格体系结构的事实上的标准。

In this paper, a novel Crowbar control strategy is proposed to limit the over current in the rotor and the over voltage of the DC bus as well as the transient oscillation of the electromagnetic torque. Moreover, a capacitive current is injected into the grid to assist the recovery of the grid voltage.

文章提出了一种Crowbar控制策略，能有效抑制转子过电流、直流母线过电压以及电磁转矩的振荡，并可向电网注入无功电流以帮助电网电压的恢复。

According to the development plan of North China Grid and the short circuit current increasing cycle and period of Beijing-Tianjin-Tangshan Grid,rational control scheme of short circuit current and countermeasures are put forward.

根据华北电网的发展规化，针对京津唐电网短路电流增长的周期性和阶段性，提出了合理限制短路电流水平的思路和对策。

According to the definition and the distribution of VSR's voltage space vector, the introduction of a rule-based SVPWM current control strategy, with non-fixed switching frequency and dual hysteresis loops, that obviously improves the performance of current control. Based on two kinds of control strategies of VSR under unbalanced grid condition, the introduction of a new VSR control strategy featuring undamped-oscillation that simplifies the controller structure and effectively improves VSR's performance under unbalanced grid condition. A systematic description of the state switching in trilogic PWM signal generation of threephase CSR by using the conversion between bilogic and trilogic switching functions.

作者在如下工作的基础上对PWM整流器的一些关键问题提出了自己的研究思路、观点和方法：根据PWM整流器网侧矢量关系，直观地描述了其四象限运行的基本原理及特征；定量分析了VSR、CSR的PWM换相过程及波形特征；引入等效变压器模型并详细分析了VSR、CSR基于d—q模型的动、静态特性；提出了满足四象限有功、无功运行指标时的VSR交流侧电感设计方法；并提出了依据控制系统跟随性和抗扰性性能指标设计VSR、CSR直流侧储能元件的参数计算方法；在研究了VSR电流控制策略基础上，提出了影响VSR电流控制的几个要素，并进行了定量分析；根据VSR空间电压矢量的定义及分布，提出了基于规则控制的不定频滞环空间矢量PWM电流控制策略，并由此提出了具有双滞环特性的不定频滞环优化SVPWM电流控制策略，有效地改进了滞环PWM电流控制性能。

You can get the best service in the first-class cabin, but you pay for it.

在头等舱可以得到最好的服务，但那是你付钱买来的。

It will make the characters of ethnical and local culture eliminated. On the other hand, this tendency stimulates the arousal of the selfconsciousness of ethnical and local culture. The selfconsciousness comes from the recognition, that is the global culture be a combination of kinds of local culture, not a one kind of culture.

民族和地区&的概念从来就是与&全球的概念相伴的，人类文化的全球化趋势同时也促进了民族性和地区性文化意志的勃兴和加强，它们构成了多种文化并存的全球文化体系中的有机组成部分。