查询词典 contingency

This thesis is focused on the study of contingency screening method of power system. The main work fulfilled is as follows. 1 Various performance indexes which represent severity degree of contingencies are proposed and analyzed. These indexes are gotten system state before and after contingency clearing obtained by the means of time domain simulation. They can be computed conveniently and immediately and can meet the need of online transient stability analysis.

论文针对电力系统的暂态稳定事故扫描的方法展开研究，主要完成的工作如下： 1提出并分析了能够表征事故严重程度的各种性能指标，这些指标利用时域仿真工具获得事故清除前后的系统状态计算得到，计算方便快捷，可用于事故的快速筛选和排序。

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。

Delivery of all or any part of this order is subject to, and Seller shall not be liable for, and default or delay due to any cause or contingency beyond the Sellers control, including but not limited to non-delivery or delay of raw materials, strikes, lockouts, fires, accidents, delays in transportation, or regulations of the United States or any state, or any government subdivision of either and any order for merchandise not delivered because of any such cause or contingency may, in whole or in part, at Sellers option, without notice or liability, be cancelled.

交付的全部或任何部分的这条命令，不得以任何方式和卖方概不负责，并违约或延迟，由于任何原因或应急超出卖家控制，包括但不限于未交付或迟延交付的原材料，罢工，关厂，火灾，事故，交通延误，或规章的美国或任何国家，任何政府或细分的任何命令，要么和未交付的商品，因为任何这样的原因或应急，可全部或部分，在卖家选项，无须事先通知或赔偿责任，被取消。

On the contrary it helps to emphasize this truth, for the same relation of dependence upon a self-existing cause which is implied in the contingency of any single being is implied a fortiori in the existence of an infinite series of such beings, supposing such a series to be possible.

与此相反，它有助於强调了这个真理，为同一关系，依靠自我存在的原因，是隐含在应急任何一个单一的就是隐含更不用说在存在一种无穷级数等人，假设这样一个系列可能的。

Because of fault in operation and the precision of instrument,the defect error and accidental error are involved in the procession of data collection,the defect error that are brought by mistakes of people and influence of outside is large,the contingency error that are inevitably and randomicity is little.

在采集数据过程中，由于某些操作或仪器原因，往往使数据中包含人为错误，或外界干扰产生的量值较大的"过失误差"以及不可避免的带随机性质且量值较小的"偶然误差"。

Aiming at the characteristic of this problem, this paper proposes an optimization strategy called ＂the active restriction relaxation approach＂ which can classify the contingency set into two subsets.

针对该优化问题的特点，提出了一种＂积极约束松弛法＂的优化策略，它能将预想事故集分解成使控制总成本最小的2个子集，并分别由预防控制和紧急控制保证其中事故的安全性。

A mathematics model of comprehensive security control is formed by taking the total cost of control actions as the objective function and taking inequalities of hyperplanes as transient stability restrictions, and a optimization strategy called "the active restriction relaxation approach" is proposed which can classifies the contingency sets into two subsets.

以综合控制总成本为目标函数，以超平面形式的不等式为暂态稳定约束，该方法把安全性综合控制问题归结成了一个最优化问题。

Your DJ should be able to ad lib his way through any contingency.

您的DJ应该能够解放自己的广告通过任何方式应急。

The main idea behind these methods is to take advantage of the known state variables and the theorem of addition for linear system without building up a new Jacobian matrix again. But the equivalent computation of algebraic equation must be performed to get state variables corrections. Accordingly, the speed required to model the contingencies is not fast enough to meet the demand of fast contingency analysis under emergency condition, which is proved by several well-known blackouts caused by flow transferring.

但是，这些算法中的大多数是在实时潮流计算的基础上，利用其中间结果和线性系统的叠加原理，直接求解出事故后的状态变量，都需要通过网络方程求解整个网络状态变量的增量，计算量较大，难于满足紧急状态下快速安全性评估的实时性要求，国内外一系列因静态潮流问题引起的大停电事故就是例证。

The process of painting with the theme of anticipatory contingency, the collision resulted in a vibrant and vivid results.

题材的预设性与绘画过程的偶然性，相互碰撞导致一种鲜活生动的效果。

The statistical analysis of this large set of mutations has led us to propose a diagnostic strategy that should help with the molecular work-up of optic neuropathies.

这一大系列基因突变的统计学分析引导我们提出一个诊断策略，可以帮助我们对视神经病变进行分子学的诊断检查。

The results show that the pipe grouting changes the mechanical parameters of surrounding rocks to achieve the security of engineering objectives by reinforcing surrounding rocks and bolcking the water.

研究表明：小导管注浆一方面改变了围岩的力学参数，另一方面利用浆液的固结特性可以实现堵水和加固围岩的工程目标，使隧道在开挖过程中的安全得到保障。