To ensure the measurement precision of the electric power fault recorder, this paper proposes a channel calibration approach based on the linear least square method.
为了保证电力故障录波器的测量精度,提出了一种基于线性最小二乘原理的录波器通道校正方法。
With more application of electric and electronic devices on ship, more and more nonlinear loads take higher demand for reliability and fault prevention of power station control.
随着电力电子设备在船舶中的大量应用,非线性负载的增多,对船舶电站控制的可靠性及故障预防提出了更高的要求。
The electric voltage echo coefficient provides dependable theories to the power cable fault location.
电压反射系数为电力电缆故障测距提供了可靠的理论依据。
Upon the research on the whole electric power system, the robustness of fault diagnosis algorism is bad and it is hard to build practical math models for some objects.
在对整个电力系统进行故障诊断研究时,故障诊断算法的鲁棒性差且有些诊断对象不易于建立实际系统数学模型。
The statistics of electric power company show that more than 80% letting off customer is leaded by distribution network fault.
电力部门的统计资料表明,约80%以上的用户停电是由于配电网的故障造成的。
Then the decision tree of electric power grid diagnosis is built by using weighted mean roughness as separating attributes standard to realize electric power grid fault diagnosis.
然后采用加权平均粗糙度的概念,作为选择分离属性的标准,构造电网故障决策树,从而实现对电网的故障诊断。
Acknowledge and in time effective protection of power semiconductors from fault current is of utmost importance for the reliable operation of AC equipment on electric locomotive.
电力半导体器件故障电流(特别是短路电流)的确认与及时有效保护,对电力机车交流装置的可靠工作至关重要。
This article proposed shunt current electric larceny fault detection model for electric energy meter 'current coil of the high voltage power metering system.
提出了高压电力计量系统电能表电流线圈分流窃电故障检测模型。
Transmission line fault location is an important problem in electric power systems.
输电线路故障定位一直是电力系统急需解决的难题。
Through example analysis, the basic concept, modeling method, calculating steps of fault tree analysis were introduced, as well as its application to study of electric power system reliability.
通过实例分析,介绍了故障树分析的基本概念、建模方式、计算步骤及其在电力系统可靠性研究中的应用。
Based on analyzing the fault performance of electric power system equipment, an online evaluation function model is established.
在分析电力系统设备故障特性的基础上,建立其在线评估功能模型。
This method has already applied to a fault diagnosing KB of electric power communication networks, and has gained good effects.
该方法已在电力通信网智能故障诊断知识库中获得应用,取得了良好的效果。
This paper presents a new fault location algorithm for multi-branch electric power lines.
以多分支输电线为研究对象,提出了一种新的故障定位算法。
To fix fault device of information system in the shortest time limitation is very important to electric enterprises as they have great amount of such devices used in power supply information system.
实现在最短时间内对信息系统故障设备的快速修复,对设备数量庞大的供电企业信息系统非常重要。
Research on intelligent measurement of small electric resistance belong to the field of condition monitoring and fault diagnosis on electric power equipment.
微小电阻智能测试研究属于电力设备状态监测及故障诊断技术研究领域。
This paper is mainly to discuss the recording and publishing of fault data of electric power network.
本论文主要讨论了电力系统故障数据的记录和发布问题。
In order to reduce the power cut off which caused by electric shock accident and earth-fault power cut off, it must install residual current operated protective device.
低压供用电系统中为了减少发生人身电击事故和接地故障切断电源时引起的停电,必须加装剩余电流动作保护装置。
Generator fault diagnosis system plays an important guarantee role on the safe production of electric power, and at the same time it also has great social benefits and economic benefits.
发电机故障诊断系统,对电力安全生产起着重要保障作用,同时还具有重大的社会效益和经济效益。
In electric power plants and substations, a detection of DC system ground fault was usually completed in hand manner, which is very much trouble and danger.
在发电厂和变电所内,直流系统接地故障的检测,过去一直采用手动方式来完成。
This paper presents a systematic transformation for power supply networks on electric railways. Its applications to fault analysis for traction substations are presented.
本文介绍网络的系统变换法及其在牵引变电所故障解析中的应用。
The sensor failure of electric power-steering (EPS) system damages vehicle reliability and safety seriously. The research of fault-tolerance control technology of EPS has important application value.
电动助力转向(eps)系统的传感器故障将严重危害汽车的可靠性与安全性,研究EPS系统的容错控制技术具有重要的应用价值。
The fault diagnostic system for electric power system is an important approach to ensure the safety and stable operation of electric power system.
电网故障诊断是保证电力系统安全稳定运行的重要手段。
As wavelet module maxima occur at peaks of signal, the pretreatment removes power frequency periodic components from electric signal and thus avoids misjudgments of fault.
通过预处理滤除工频周期分量,消除了小波变换在信号峰值处的模极大值,从而避免了对故障的误判。
When the fault occurs in the electric power net, they need to make out accurate judge fleetly and present corresponding measure so as to renew the system's normal run in time.
当电网发生故障时,要求他们迅速做出正确的判断,并给出相应的处理措施,及时恢复系统的正常运行。
A synthetic fault dia gnosis method based on RS theory for electric power transformer fault character and fault location is proposed.
提出了一种基于粗糙集的理论对变压器故障性质和故障部位的综合诊断方法。
A synthetic fault dia gnosis method based on RS theory for electric power transformer fault character and fault location is proposed.
提出了一种基于粗糙集的理论对变压器故障性质和故障部位的综合诊断方法。
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