1) impedance track analysis
阻抗轨迹分析
1.
The impedance track analysis software is programmed by Visual C++6.
电网故障阻抗轨迹动态分析(简称阻抗轨迹分析)是基于故障时刻智能电子设备(IED)及故障录波器记录下的COMTRADE文件,对录波文件智能解析,采用全周差分傅氏算法及阻抗向量计算法,逐点计算ZA、ZB、ZC、ZAB、ZBC、ZAC6种阻抗值,依据各阻抗值及设置的门槛值在PC机上动态绘制阻抗轨迹。
2) impedance locus
阻抗轨迹
1.
By taking impedance locus as an example,an algorithm of generating 3-D vector data and other graphs of 3-D analysis modules for fault analysis in power system are given.
以阻抗轨迹为例给出了三维矢量数据的生成算法及其他多种电力故障分析算法的三维分析模块图例。
3) trajectory analysis
轨迹分析
1.
The possible origins and immigrant pathways of the white-backed planthopper (WPH) Sogatella furcifera (Horvth) in the middle reaches of the Yangtze River were investigated with trajectory analysis.
根据 1977~ 1979年 3a的 7月份飞机航捕白背飞虱Sogatellafurcifera (Horv th)资料 ,应用轨迹分析模型 ,得出了长江中游稻区夏季迁入白背飞虱的中尺度虫源地及迁入路径如下 :1。
2.
The possible sources and immigrant pathways of the brown planthopper (BPH),Nilaparvata lugens(St*[l), in the middle reaches of the Yangtze River were investigated by the means of trajectory analysis.
根据 1977~ 1979年 3年的 7月份飞机航捕褐飞虱Nilaparvatalugens的资料 ,应用轨迹分析模型 ,得出了长江中游稻区夏季迁入褐飞虱的中尺度虫源地及迁入路径。
3.
The meteorological data on the mid-and small-size population source regions (such as Nanning and Shaoguan) which were determined or found out by trajectory analysis were used to predict the peek date of immigration and the adult number about one or two months ahaed of the practical occurrence in seven representative counties in Huaihe and Changjiang rice areas.
利用江淮稻区稻纵卷叶螟轨迹分析所确定的中、小尺度范围虫源地(南宁、韶关等)气象资料,对该稻区7个代表地点迁入代的迁入高峰日、高峰日蛾量和世代累计蛾量作了中期异地预测,组建了逐步回归模型,依此可以提前1~2月作出预报,各代表地点的预测准确率均超过了70%。
4) trajectory analysis method
轨迹分析法
1.
This paper proposes an algorithm for the sensitivity of stable index to assesse the generator active power output based on trajectory analysis method and trajectory sensitivity.
轨迹分析法是电力系统暂态稳定分析的有效方法,能定量给出反映稳定程度的稳定指标和不稳定指标。
5) root locus analysis
根轨迹分析
6) impedance analysis
阻抗分析
1.
Impedance Analysis of Dye-Sensitized Solar Cells;
染料敏化太阳能电池阻抗分析
2.
Based on impedance analysis of equipment of wire-drawing experiment with ultrasonic vibration, vibration measurement and performance evaluation are realized with piezoelectric accelerometer, charge amplifier and dynamic signal analyzer.
在阻抗分析的基础上,应用压电加速度计、电荷放大器和动态信号分析仪对超声振动拉丝实验装置进行了振动测试和性能分析。
3.
Using the impedance analysis method, simplifying the model, the thesis established a two-dimensional finite element model with axial symmetry seems stable exchange electromagnetic field.
利用阻抗分析方法,经模型简化,建立了二维轴对称似稳交流电磁场参数化有限元模型,在此基础上进行了大量的仿真计算,得到了如下主要结论。
补充资料:星接阻抗和三角接阻抗的变换
星接阻抗和三角接阻抗的变换
transformation between starc-onnected and delta-connected impedances
x ing]一e乙日kongl介e sonJ一00}Iez日伙ongde匕一。一〕huon星接阻抗和三角接阻抗的变换(t ransfor-mation betweenstar一eonneeted and delta-eonneeted imPedanees)接成星形的三个阻抗和接成三角形的三个阻抗互相替代的等效变换。它们之间的关系可用一组变换公式表示。按这组公式,用星接阻抗替换三角接阻抗或者反过来,不会影响稳态下电路其他部分的正弦电压和电流,常用于对称三相电路的分析和计算。 图1为三个阻抗21、Z:、23接成星形(又称丫形)。图2为三个阻抗Z小22。、Zal接成三角形(又称△形)。它们之间的变换公式如下:人23土图1星接阻抗图2三角接阻抗(1)将星形连接变换成三角形连接212一Z:+22+2 122及3一22+za十警(1)、|冬|矛231一23+21+2321(2)将三角形连接变换成星形连接z、-二一典乒兴-) 艺‘2士乙“3十乙31…_2 oqZI,}Z。一下万~一二-二二-汁 乙‘2士乙23十乙3‘1_Z。IZoq}艺q一二二一~二,二二--,-二二-~J 乙12十乙23十艺32夕(2) 当三个星接阻抗相等,即21一Z:一23一z丫、三个三角接阻抗相等即212一223一231一Z△时,变换公式是 Z二一32丫,Z丫一Z△/3
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参考词条