查询词典 transient stability

In order to deal with the stochastic characters of fault location, fault type, fault clearing time, and load level etc., this paper proposed a transient stability probability analysis method based on curve fitting.

考虑电力系统发生故障时，故障位置、故障类型、故障切除时间以及负荷水平都具有随机性，提出了一种基于曲线拟合的暂态稳定概率评估方法。

Based on the theory of EEAC, transient stability of power system was estimated by identifying the dynamic saddle point.

在轨迹降阶的基础上，根据EEAC理论，通过识别聚合轨迹的动态鞍点来判断轨迹的稳定性。

The program was written in C, the parameters were set according to the stability and transient response requirement and the experimental results showed that parameters were chosen satisfyingly.

软件用单片机C语言进行编写，各控制环节的取值都考虑到系统稳定性和动态响应的要求，经过反复调试和试验，各控制环节的取值都能满足设计要求。

This paper describes a data-structure analysis algorithm and applies it to separability analysis of input spaces for transient stability assessment.

介绍一种数据结构分析算法，并将其应用于基于神经网络的暂态稳定评估输入空间可分性分析。

Aimed at the problem of choosing the initial value when the Newton method is used to compute the controlling unstable equilibrium point, a practical and rigorous solving scheme was presented: by identifying the controlling load bus of the given fault, and using the Thevenin equivalent circuit to represent the rest of the system at the state of the post disturbance stable equilibrium point, using the steady equivalent circuit to represent the induction motor in composite load, and then using the torque characteristics of induction motor, a point near the CUEP is gained to be the initial value. The second order normal forms was used to approximate the stable manifold of CUEP, and the local approximating boundary of the region of attraction of the post disturbance stable equilibrium point was gained. Then just by simulating the state of the system at the fault clearing time, the transient voltage stability of the system could be determined.

针对采用牛顿法求取故障后系统主导不稳定平衡点(controlling unstable equilibrium point，CUEP)存在的初值选取难题，提出一种实用但不失严谨的解决方案：通过识别给定故障的主导负荷母线，对主导负荷母线以外系统由故障后稳定平衡点处的状态进行戴维南等值，对负荷中感应电动机部分采用其稳态等值电路，再由感应电动机的转矩特性求得CUEP附近的一个点作为近似的CUEP，以此为迭代初值可靠求得CUEP；采用二阶正规型来近似CUEP的稳定流形的方法求得近似的局部吸引域边界；由仿真得到故障清除时刻系统的状态并根据该状态是否位于吸引域内判断系统的暂态电压稳定性。

A Swallowtail Model of critical machine transient stability is deduced by using classical generator model and reduced network.

一、利用新的数学分支方法—灾变理论推导出以经典发电机模型的暂态灾变模型。

Order selection for transient stability simulation using higher order Taylor series expansions is significant for computation efficiency.

泰勒级数法暂态稳定计算中阶数的选取对提高计算效率有重要意义。

Influence of three-phase metallic short circuit occurred position in tie line on power system transient stability .

联络线三相金属性短路地点对电力系统暂态稳定性的影响。

The influencing extent as well as the influence of three-phase metallic short circuit that occurs in different position of tie line on transient stability of one machine infinite bus system and that of two machine system are analyzed.

分析了在不同地点的联络线上发生三相金属性短路时对于单机无穷大系统和两机系统的暂态稳定性的影响程度。

With the development of modern power systerm, the transient stability problem becomes more and more serious.

随着现代电力系统的发展，电力系统的暂态过程越来越引起人们的重视。

The witness also told the jury at the Royal Courts of Justice in London that he saw a paparazzo fighting with a member of the public who was trying to stop him taking pictures in the minutes before the emergency services arrived.

他还告诉在伦敦皇家法庭的陪审团，在急救服务到来之前，他当时看见一个狗仔队正和一群阻止他拍照的人打架。

The entire N／C program on a tape is made up of an accumulation of these successive data blocks.

纸带上的整个数控程序由这些连续数据单元连接而成。