搜索结果: 1-6 共查到“动力与电气工程 Detection”相关记录6条 . 查询时间(0.078 秒)
DETECTION OF SHIP TARGETS IN POLARIMETRIC SAR DATA USING 2D-PCA DATA FUSION
Polarimetric data fusion 2D-PCA
2015/5/7
Data fusion has lately received a lot of attention as an effective technique for several target detection and classification applications in different remote sensing areas. In this work, a novel dat...
POLYNOMIAL CURVE FITTING INDICES FOR DYNAMIC EVENT DETECTION IN WIDE-AREA MEASUREMENT SYSTEMS
Power system measurements Power system monitoring Fault detection Response-based control Decision trees
2015/1/20
In a wide-area power system, detecting dynamic events is critical to maintaining system stability. Large events, such as the loss of a generator or fault on a transmission line, can compromise the sta...
Fault detection and identification for voltage sag state estimation in power systems
Fault location power system quality voltage sag (dip) estimation state estimation residual analysis
2010/10/12
This paper presents a novel approach for fault detection and identification in order to estimate voltage sag during a fault. One of the best approaches for voltage sag estimation is instantaneous volt...
配电网故障区间判断的改进型矩阵算法(Improved Matrix Algorithm for Fault Section Detection in Distribution System)
配电网络 馈线自动化 故障定位 故障小区 故障判断矩阵
2010/8/17
在馈线终端单元(FTU)装置中设置三种工作模式,在此基础上提出一种分区判断故障的改进型矩阵算法。首先采用分区的思想以常开型联络开关为界将配电网络分成许多小区,根据故障信息粗略判断出发生故障的小区。针对发生故障的小区形成网络描述矩阵,根据不同工作模式下的故障信息对网络描述矩阵进行修正形成故障判断矩阵,根据故障判断矩阵中的元素特征就可判断故障发生区间。仿真结果表明此算法判断正确,没有产生漏判现象。
高压直流阀冷系统漏水检测功能的改进(Improvement of Leakage Detection in Valve Cooling System for HVDC Transmission Systems)
高压直流输电 阀冷系统 漏水检测
2010/8/17
分析了南方电网中3回高压直流输电系统中的阀冷系统漏水检测与保护功能,发现均存在一定设计漏洞,装置有可能因此出现误动和拒动,建议在天广直流系统以及高肇直流系统的阀冷控制系统中增加判据,使之功能更完善。
The Power of Statistical Tests for Trend Detection
Trend detection Power of a test t-test Mann-Kendall test
2009/10/12
The existence of a trend in a hydrological time series is detected by statistical tests. The power of a test is the probability that it will reject a null hypothesis when it is false. In this study, t...