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- At present, transient fault signal of HV/EHV transmission line is analyzed by wavelet transform. 目前国内主要是采用小波变换的方法分析高压输电线路故障后的暂态信号。
- Frequency Domain Character of Power System Transient Fault Signal 电力系统暂态信号频谱特征的仿真研究
- The Study of Fault Location Algorithm Using Transient Fault Signal for EHV Transmission Lines 利用输电线路故障暂态信号进行故障定位的算法研究
- transient fault signal 故障暂态信号
- Lipschitz exponent and its application in simulation of power system transient fault signals analysis 李氏指数及其在电力系统暂态信号分析中的仿真应用
- By digital simulation and detection of gearbox fault signal the detection effect of the novel bilinear time-frequency transform is validated for the transient components in complex signal. 通过数字模拟实验与齿轮箱故障信号检测，验证了新的双线性时间－频率分布对复杂信号中瞬时分量的探测效果。
- The application of ISP technique in locomotive transient fault recorder using W78E516 MCU and ispLSI PLD is introduced. 介绍了机车瞬间故障记录系统中 ,利用W78E516单片机和Lattice公司ispLSI可编程逻辑器件如何实现在系统可编程功能 (ISP)。
- Combined with analysis of fault signals, the paper applies EMD, Singular Value analysis, SVM and Shannon entropy to the extraction and analysis of transient signals. 结合对故障信号的分析,将EMD、奇异值分析、SVM、信息熵等应用到选相过程中暂态信号的提取和分析上。
- In this paper,a new method of motor fault signal frequency pursuitting based on marginal spectrum of Hilbert-Huang transform(HHT) was presented. 提出了将HHT变换(Hilbert-HuangTransform,简称HHT)中边际谱应用于电机故障信号频率跟踪研究的新方法。
- On the basis of the introduction of commutation failure principle,analysis of commutation failure in Three Gorges-Guangdong HVDC system Echeng station is made according to the transient fault record. 在简要介绍换相失败基本原理的基础上,根据现场的暂态故障录波图,对三广直流鹅城换流站发生换相失败的原因进行了详细分析。
- The amounts of fault signal records are increasing rapidly with the elevation of fault monitoring level, which leads to troubles for data transmission and storage, therefore the research of data compression is paid more and more attention. 摘要随着对电力系统故障过程监控水平要求的逐步提高，急剧增大的故障录波器数据量给数据传输和储存带来了很大的困难，因此数据压缩也越来越受到人们的关注。
- In chapter 1, Firstly, fault feature extraction methods and their characteristics in FDD are introduced briefly, research progress, existing problems and application prospects on the fault signal processing with wavelet are stated in detail. 第一章概述了故障检测与诊断技术中故障特征提取方法的研究进展、存在问题及应用前景。
- The results of simulation by MATLAB show that this method is valid to distinguish the transient faults and permanent faults on transmission line with shunt reactors. 利用MATLAB软件进行了大量仿真实验,验证了其在带并联电抗器的超高压长输电线路的瞬时性故障与永久性故障的识别中具有良好的可行性。
- The proposed scheme directly reconstructs the fault signal rather than obtaining it by generating and evaluating the residual signals. 该方法能够直接重构故障信息而不是通过产生和评价残差信号得到故障信息，从而避免了产生和评价残差信号的复杂性。
- transient fault voltage detection 瞬时电压检测
- Weak periodical fault signals can be extracted successfully from the background of QT. 本文以类随机电报为背景,成功地提取了弱周期性故障信号;
- Because neural networks have a very strong ability in pattern recognition, an NN classifier is used in the multi-parameter recognition of fault signals. 充分利用了神经网络极强的模式分类能力，用神经网分类器对故障信号进行多参量识别。
- A red light is usually a signal of danger. 红灯通常是危险的信号。
- First the power spectrum of fault signals is decomposed by wavelet analysis, which predigests choosing method of fault eigenvectors. 首先对故障信号功率谱进行小波分解,简化了故障特征向量的提取。
- At this point your logic is at fault. 在这一点上你的推理是错误的。
