Voltage stability assessment for saddle node bifurcation and limit induced bifurcation

鞍 结分岔与极限诱导分岔的 电压稳定性评估

The equivalent voltage and current at the branch node is obtained by the equivalent calculation of the healthy branches . Then the two-terminal fault location algorithm can be applied to implement high accurate fault location .

利用故障附加分量 电压值来判断故障支路，在此基础上，将非故障支路化简合并，得到故障时支 接点的等效 电压、电流，再对故障支路应用双端测距算法进行高精度的故障测距。

A New Method for Solving the Branch of Pure Voltage Source on Node Voltage Method

节点电压法中纯 压源支路处理的一种新方法

Set the lowest appropriate operating voltage for node and switching the power supply of other devices dynamically according to the variational load the strategies not only keep high power efficiency of power module with the variation load but also utilize and store the energy harvested effectively .

该设计策略选择了适合 节点运行的最低工作 电压，根据 节点负载变化动态地切换其他器件的供电方式，使电源模块在不同负载下不仅能够保持高能效，而且能高效利用与存储采集的能量。

This paper presents the methods of Node of Voltage and Node tearing in research of marine power system .

在船舶电站仿真研究中，引入节点 电压法的建模方法和 节点撕裂法的并行算法，设计了自动生成模型的数学支持系统。

In static analysis sort the power loss sensitivity indicators of the nodes of the system in order to accurately determine the system voltage weak node and determine the installation location of SVC .

静态方面，通过对系统母线节点网损灵敏度指标进行排序来判断系统的 电压薄弱 节点，以此来确定SVC的安装地点，并且使用连续潮流法进行了验证。

We observe that in the case of ideal voltage sources equation required for the node method breaks down .

我们注意到在存在理想 电源的情况下， 节点分析法的方程就失败了。

This paper presents a new modeling method based on voltage of node for ship electric power system .

提出了一种基于 节点 电压的建模方法。

The structure operation modes and harmonic of TCSC are analyzed . The influence of TCSC on voltage of the node where distance protection relay is located and phase of line current sequence component as well as the effect of TCSC harmonic on distance protection relay are emphatically studied .

分析了TCSC的结构、运行模式及谐波特性，着重研究了 TCSC对保护安装处 电压的影响，对线路电流序分量相位的影响，以及TCSC谐波对距离保护的影响。

The multiple sensors are connected in series and the voltage is measured at each node in the series connection of sensors .

多个传感器串联连接并且测量体感器的串联连接中每一个 节点处的 电压。

As for voltage level division in the actual power network a voltage factor is introduced to classify network nodes to high voltage node and low voltage node which link into the power network in different ways base on its different effect in the power network .

引入电压因子，将网络节点分为高、低压节点，形成高压网络层和 低压网络层，两类 节点依据其在电网中的不同作用，以不同的方式接入电网。

Application of the generalized ridge estimate and the mathematical model is solved by the system harmonic voltage of each node and then determine the system harmonic state .

应用广义岭估计对数学模型求解，得到系统中各个 节点的谐波 电压，进而确定系统的谐波状态。

Eigenvalue sensitivity index for voltage weak - node based on GMR technique

基于GMR技术确定 电压弱 节点的特征根灵敏度指标

Voltage stability evaluation based on node load impedance analyses

基于 节点阻抗解析的 电压稳定性评估

The actual application shows that this system can improve the voltage level for each node of the whole power grid efficiently reduce network loss and produce better benefits .

实际应用表明，该系统可有效提高全网各 节点 的 电压 合格率，减少网损，能产生较好的经济和社会效益。

It used symbol to express circuit element 's parameters and solved the k-trees of the network therefore the symbolic expression of node voltage variables in Node Matrix Equation can be evaluated .

该方法直接将电力网络元件的参数进行符号表达，通过求解网络的k-树，有效地计算出电力网络 节点 电压方程中各变量的符号表达式。

The new calculating method of stationary voltage stability critical node is put forward by analyzing the ability of the load power of simple alternative circuit branch .

通过分析简单交流支路的功率负荷能力，提出了求取静态 电压稳定临界 点的新算法。

Stable exchange of line reactive power and decrease of voltage fluctuation range of hub node ;

线路无功潮流交换平稳，枢纽 点 电压波动幅度减小；

The connection of wind power can change the existing network topology operation mode and the three sequence impedance matrix and then lead to the change of the voltage sag amplitude of each node .

风电场接入电网改变了原有的网络拓扑结构和运行方式，三序阻抗矩阵随之改变，引起各 节点 的 电压跌落幅值发生了变化。

The optimization objectives of this system are as follows : To reduce the line loss in the whole network to be as small as possible and to improve the voltage eligibility at each node to be as high as possible .

该系统的优化目标是全网网损尽量小、各 节点 电压合格率尽量高，控制对象为各 变 电所有载 调 压 变压器分接头调节与 电容 器投切；

The voltage level of the node in the system will be satisfied after reactive power optimization and the harmony operation between wind farm and the power system will be obtained .

利用成熟的无功优化程序对系统进行优化后，可以使系统的各个 节点得到满意的 电压水平，真正实现风电场和其所接入系统之间的协调运行。

The method is according to the measuret current and voltage of each node and by ap - plying an equivalent algorithm to search every branch the fault branch and fault location can be decided .

该方法根据所测各端点的电流和 电压，应用相同的算法对全部分支 逐条搜索，进行故障分支的确定和故障点定位。

In this paper a method consisting of sample investigation and physical mathematical processing is proposed for the load characteristic accumulation for high voltage node in the area where air conditioners are gathering .

在对空调类装置密集地区负荷分析的基础上，提出抽样调查与数学物理相结合的方法，将该类负荷从 低压到高压有层次地集结到高 电压 节点。

And fault sub-circuits are oriented by measuring node voltages of a large-scale circuit stimulated by voltage sources and comparing node voltages with their normal value when the large circuit is logically torn into several sub-circuits .

然后，对大规模电路故障诊断提出了一种新的屏蔽方法，将它逻辑撕裂成若干个子电路后，采用电压激励测电压，结合灵敏度分析，利用 电压比较分析来确定存在 故障的子电路。

A Simple Way of Solving Node Voltage Application of Assumed Node Method

求解节点 电压的简便方法&假想 节点的应用

We can use it to calculate :( 1 ) The harmonic voltage and voltage distortion at every node of power network .

使用该程序可以计算如下内容：（1）交流网络中每个 节点处的谐波电压和 电压畸变；

By using a flexible node algorithm for equality constrains condition in power system and adjusting load for local node we obtain the critical voltage collapse node .

采用电力系统等约束柔性节点算法和局部节点调节负荷的试探法获取了算例的临界 电压崩溃 点，在此基础上，通过算例验证该方法，验证结果表明所提出的方法可行有效。

In this paper the relation between the voltage increment of testing node and the space of fault subnetwork is discussed on the concept of subnetwork transfer impedance and subnetwork space and the method of locating fault subnetwork is presented .

在子网络转移阻抗和子网络空间概念的基础上，分析了测试 点 电压增量与故障子网络空间的关系，提出了将测试点 电压增量投影到子网络空间定位故障子网络的方法。

Load characteristic accumulation for high voltage node in the area where air conditioners are gathering

空调类装置密集地区高 电压 节点负荷特性的集结