电力系统故障

雷电干扰和电力系统故障引起的地电位升高会对通信设备造成危害。

The rise of the earth potential induced by the lightning interference and power system failure can be harmful to the communications equipment .

基于B样条小波的电力系统故障录波信号的数据压缩技术

B-Spline Wavelet Based Data Compression Technology for Power System Fault Recorder

基于编码PETRI网的电力系统故障诊断模型研究

Power system fault diagnosis modeling techniques based on encoded Petri nets

电力系统故障诊断的计算机仿真表明，高阶BP算法可以明显提高系统精度，降低误差。

The Numerical simulations show that high-order BP can improve system precision , reduce error remarkably .

电力系统故障分析辅助教学CAI课件的开发

Development of CAI software for power system fault analysis

Excel在电力系统故障计算中应用

Application of Excel in electric power fault calculation

通过对电力系统故障暂态过程的仿真，介绍Matlab软件在电力系统仿真方面的应用。

The application of Matlab software to power system simulation was introduced through simulating transient process of power system fault .

将DSP用于电力系统故障录波装置及各种电力系统自动化设备的改造和研制，无疑将给装置的性能带来很多质的突破。

It is undoubtedly many performances of fault recorder will break through for using DSP in the modification and development of it .

基于改进D-S证据决策准则的电力系统故障诊断

Power system fault diagnosis based on improved D-S evidence decision rule

讨论了电力系统故障仿真测试装置中USB通信驱动程序的开发。

The development of USB function driver used in power system faults simulation test device is discussed in this paper .

基于模糊外展推理和Tabu搜索方法的电力系统故障诊断

Tabu search approach to fault diagnosis in power systems using fuzzy abductive inference

利用Petri网技术对电力系统故障进行快速建模，并在计算机辅助故障诊断方面进行研究运算，可及时得出故障范围。

In this paper , the technique of Petri net is used in power system fault modeling and computer-assisted fault diagnosis .

电力系统故障分析的一种新型实用计算机分析算法及在BPA暂态程序中的实现

New practical algorithm and its application in BPA for power system fault analysis

本文介绍的电力系统故障录波与测距装置是由高性能的16位STD工业控制计算机和8031单片机组成的多CPU主从式计算机数据采集及自动处理系统。

The fault recording & locating device introduced in this paper is composed of a high-perfor - mance 16-bit STD industry control computer and some 8031 SCPs .

本文在分析电力系统故障录波装置和嵌入式系统的基础上，引入面向对象建模思想，运用统一建模语言（UML），建立电力系统录波装置的UML模型；

This paper focuses on using UML ( Unified Modeling Language ) to establish the model of fault recorder device and how to realize the UML model on embedded system .

因此，这无论是对OPGW选型校验，还是对电力系统故障分析，都有重要意义。

Therefore , it has an important significance for both OPGW type checking and fault analysis of power system .

提出了一种基于Petri网和概率信息的面向电力系统故障诊断问题的建模和诊断分析方法。

A fault diagnosis method for power systems based on Petri nets and probability information is presented , which includes the modeling of fault diagnosis system and the decision making technique of diagnosis analysis .

近几年学者们已经试图将Petri网和模糊Petri网的理论应用于电力系统故障诊断方面，但提出的方法都有不足。

In recent years , researchers have been trying to introduce the Petri Network and Fuzzy Petri Network into the fault diagnosis of power system , but each proposed method has its own drawbacks .

利用保护和断路器信息的电力系统故障诊断与不可观测的保护的状态识别的模型与Tabu搜索方法

A Tabu Search Based Approach to Fault Section Estimation and State Identification of Unobserved Protective Relays in Power Systems Using Information from Protective Relays and Circuit Breakers

针对诊断信息冲突或不健全的缺陷，提出用改进的D-S（Dempster-Shafer）证据决策方法进行电力系统故障的诊断。

An improved D - S ( Dempster - Shafer ) decision method is presented to solve the defects of diagnosis information conflict or distemper .

应用Petri网技术求解电力系统故障恢复问题具有模型直观、过程清晰等优点，还能够描述恢复过程中的并发与资源竞争问题。

When Petri-net technique , which possesses the advantages of intuitional model and clear process , is applied to solve the fault restoration of power system , the concurrence and resource limitation in the restoration can be described .

对于电力系统故障信号的分析，本文应用Lipschitz指数对奇异点进行识别，并在论文中给出了仿真计算例子。

In this paper , Lipschitz exponent method was applied to identify the singularity in power system fault signal analysis and a simulation example was given in the last chapter .

为此，介绍了利用Petri网进行电力系统故障仿真，包括了模型的建立、故障假设与诊断和对不确定信号的诊断与排除，并给出了仿真算例。

The use of Petri nets in power system fault simulation is described in terms of modeling , hypothesis and diagnosis of faults and diagnosis and removal of uncertain signals . The efficiency of the method is validated by simulation cases .

用实例阐明了Excel在电力系统故障计算时的方法，即建立系统等值序网络和各序网络节点导纳矩阵，用Excel矩阵求逆函数获得阻抗矩阵，求得阻抗方程，再计算出故障电气参数。

Its application in electric power fault calculation is illustrated with examples : establish system equivalent sequential networks and their node admittance matrices ; convert them into impedance matrices using the matrix reverse function of Excel ; solve the impedance equation ;

综述了电力系统故障诊断的各种研究方法，包括专家系统、人工神经网络、优化技术、Petri网络、粗糙集理论、模糊集理论和多代理技术等。

The current proposed methods for fault diagnosis of power systems , including expert system , artificial neural network , optimization method , Petri network , rough set theory , fuzzy set theory and multi-agent technology , are surveyed in this paper .

同时分析了基于GA的无线传感器网络最优化能量任务分配。（4）在电力系统故障检测和定位方面，给出了一种用于电力系统故障检测的无线传感器网络体系结构、安装和配置方案。

At the same time , optimal energy method for task allocation is analyzed by GA. ( d ) An architecture , installation and deployment scheme of wireless sensor network applied in power system is presented for power fault detection and location .

讨论了电力系统故障动态过程微机记录装置中的模拟量输入通道硬件的设计方案，并详细地分析了多CPU并行运行的硬件特点及利用先进的双向RAM技术进行CPU之间的数据交换。

This paper discusses the hardware design of Analog_Collection Subsystem for recording the dynamic process of electric power fault , analyses in detail the hardware characteristic of multi-CPU parallel run and the data exchange between CPUs with the help of the advanced technology of bidirectional RAM .

基于传统dq理论的谐波检测方法只能检测出三相对称系统中的谐波分量，但在电力系统故障检测和保护中，往往需要检测出对应于故障的特征次谐波电流。

Harmonic current detection based on conventional approach using d-q transformation can only detect harmonic components in three-phase balanced system . But in power system fault detection and protection , only characteristic harmonic current corresponding to fault needs can be detected .

算例系统的研究结果证明了FEBE方法的应用提高了电力系统故障诊断的效率和准确率。

The feasibility and efficiency of the FEBE approach developed for fault-section diagnosis has been verified with the result of a sample power system .

在此基础上，给出了电力系统故障时FPC的控制技术。建立了一个包含一台同步发电机和一台FPC的双机无穷大母线系统模型，通过特征值方法对系统的阻尼特性进行了分析。

For this basis , the ride-through control of the FPC during grid faults is proposed . A two-machine and infinite bus power system model including a synchronous generator and an FPC is established . The damping characteristic of the proposed system is analyzed by eigenvalue method .