故障元件

对电解槽控制线路故障元件存在范围的确定，提出了K故障下诊断的新方法。

A method for determining the existent minimum range of fault elements in control circuit for aluminium reduction cell was presented .

再利用D-S联合规则结合模糊逻辑理论，得到融合后的信度函数分配，从而确定故障元件。

The fusion belief function assignment is gotten by using D-S rule and fuzzy logic theory , and fault component is found .

城市110kV电网故障元件的快速识别

Identification of faulty components in 110 kV urban power networks

定位单个故障元件之后，将待测电路的输出电压信号经希尔伯特-黄变换处理得到Hilbert边际谱能量，代入参数估计方程并求解，即可得到故障参数值。

After location the fault component , substitute the Hilbert marginal spectrum energy of the output signal into the parameter estimation equation and solving , the fault parameter can be obtained .

根据电子电路故障元件诊断的不确定性问题，给出了多传感器D-S信息融合实现电路故障诊断的方法。

According to uncertain problem of circuit fault diagnosis , a method of using Dempster-Shafer ( D-S ) evidential theory and multi-sensor information fusion theory to realize circuit fault diagnosis is presented .

详细阐述了电子设备（36E）整机测试与诊断，电子部件的性能检测和电子设备故障元件的搜寻与定位；

The measurement and diagnosis of whole 36E and electronic equipment are discussed detailed secondly ;

从D-S融合诊断结果可以看出，只要选取的待诊断元件是合适的，关键信号测试准确，就可准确地搜寻出故障元件。说明实际电子设备故障诊断的信息融合方法是实用而有效的。

It is shown that fault component is found accurately by D-S fusion result when testing component is appropriate and key signal is accurate , and it shown that fusion fault diagnosis of real electronic equipment is practical and effective .

针对电路故障元件诊断的不确定性问题，给出了光电雷达电子部件故障定位的多传感器Dempster-Shafer（DS）信息融合方法。

In order to reduce uncertain problem of circuit fault diagnosis , an information fusion method , which is for photovoltaic radar electronic equipment fault diagnosis based on Dempster_Shafer ( DS ) evidential theory and fuzzy logical theory , is presented .

MG575采煤机主油泵是牵引部液压系统的中心元件和主要故障元件。

A main pump of hydraulic system in the drawing part of MG575 coal winning machine is the central and the main failure element .

SDBP根据各差动区的动作状态可以精确定位故障元件，并根据主保护动作信息和断路器位置信息完成整个变电站的后备保护功能。

SDBP can accurately locate the fault component according whether the differential zones lie in restraining state or operating state , and implement backup trip according the act information of main protection and breaker .

此方法首先运用蒙特卡诺容差分析方法，建立线性模拟容差电路模型，然后通过求解L1范数优化诊断方程，以诊断故障元件，并在优化求解过程中作了线性化处理。

First , the model of the linear analog circuit with tolerance is established by Monte-Carlo analysis . Then , L1-norm optimum diagnosis equation is solved to diagnose the faulty elements . And in the process of solving the equation the nonlinear optimization problem is linearized .

模拟电路的故障元件定位法

A Location Approach for Fault Element of Analog Circuit

模拟线性电路中故障元件存在范围的确定

A Method of Determining the Existent Range of Fault Elements in Analog Linear Circuits

在区域选择的基础上，故障元件识别算法是使用故障电压比较系数来识别故障元件。

Based on the regional selection , fault identification algorithm calculate the side voltage fault component .

对于故障元件的判断，本文将判断过程分为了两个步骤。

To the judgment of the fault device , we shall divide the process into two steps .

首先是如何利用保护、断路器或其它电气量信息快速定位故障元件，首次引入自定义混沌优化算法；

Firstly , self-customized chaotic optimization arithmetic is put forward to seek fault section by protection or breaker information .

提出了一种基于希尔伯特一黄变换的模拟电路故障元件参数估计方法，实现了单个故障元件的参数估计。

An analog circuit fault parameter estimation method is proposed based on Hilbert-Huang Transform to achieve single fault parameter estimation .

该方法核心是找到故障元件与削减负荷节点和系统的映射关系。

The core of this method is to find the mapping relations between fault component and load-shedding buses or the system .

第二步运用矩阵表达的保护、元件和开关三者之间的关系，通过正反向推理判断故障元件和拒动元件。

The second step is deciding the fault device and the switch of refusal action by the forward and backward reasoning .

可疑故障元件库和故障元件连接图的应用使得该模型能够快速适应电力系统运行方式的变化。

In application of possible fault components set and fault components connection diagram , the model can quickly adapt to variations of power system operating modes .

主要为印刷电路板脱离主机、切断电源的情况下，探查电路板上的故障元件而设计。

It was mainly designed for finding out failed parts on PCB ( printed circuit board ) when PCB is off from host machine and powered ─ off .

提出了基于贝叶斯网络的输电系统故障元件的快速故障诊断新方法，建立了具有容错能力的面向输电系统元件的贝叶斯网络故障诊断模型。

A novel and fast transmission system fault diagnosis method based on Bayesian networks is proposed . The method is based on component oriented Bayesian network models , which have stronger fault-tolerance ability .

论文对广域方向纵联保护算法的可靠性进行了研究，分析了有方向信息缺失或错误的情况下，算法正确识别故障元件的能力。

In order to summarize the reliability of the protection algorithm based on longitudinal comparison principle , the paper analysis the capacity of identify the fault component in the case of lose or false of direction information .

首先，在不考虑参数容差影响下，用各个测试节点上的电压增量所构成的方向向量建立了矩阵；以该矩阵为系数，构建一个线性矩阵方程；通过求解方程来定位故障元件。

Firstly , when the tolerance influence is not considered , a linear equation which coefficient matrix is composed by direction vector of voltage increment is built to identify fault in element . From the solution of the equation , the faulty element is located .

根据仿真结果确定液压系统的可靠度及其它可靠性指标，判断主要故障元件，并对该元件进行故障树模糊分析，根据分析结果，提出一些改进措施，以提高其可靠性，从而提高系统的可靠性。

According to the result of emulation , getting reliability level and other reliability index of hydraulic system in order to find out the main fault element . Running fault-tree fuzzy analysis on the element and then giving some improving ways to increase its analysis reliability .

本文讨论了并联电容器内部元件的连接方式，以降低通过故障元件的电流，防止电容器箱壳爆裂，以及如何选择外接熔断器来配合电容器组的继电保护。

This paper discusses the shunt capacitor with sufficient parallel rolls that can be sectionalized to reduce the current through a failed roll , so as to prevent capacitor tank rupture , and with an external fuse that must be selcted in concordance with the capacitor bank relay protection .

超高压输电线路的发展性故障判别元件

An Evolved Fault Criterion for UHV Transmission Line Protective Relaying

同杆并架输电线路跨线故障识别元件

Cross Country Fault Identifier for Power System Transmission Line on a Same Pole

所提出的快速测量方法不需要另外增加快速动作的故障检测元件捕捉故障起始的时刻。

The method of fast measuring recommended does not require an additional fast operating fault detector to catch the fault starting time .

提出了基于小波变换模极大值的电流行波故障启动元件、故障选线元件和故障选相元件。

On this basis , a ' fault start element ' , a ' fault line select element'and ' fault phase select element'are proposed .