A new frequency-dependent-model for cables

被引：4
|
作者：
Valdez, C. Rodriguez [1 ]
Tallam, R. M. [2 ]
Kerkman, R. J. [2 ]
机构：
[1] Purdue Univ, Dept Elect Engn, W Lafayette, IN 47907 USA
[2] Rockwell Automat, Stand Drives Div, Mequon, WI 53097 USA
来源：
2008 IEEE INTERNATIONAL CONFERENCE ON ELECTRO/INFORMATION TECHNOLOGY | 2008年
关键词：
electric cables; skin effect; VFD; Genetic Algorithms (GA);
D O I：
10.1109/EIT.2008.4554285
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
This paper deals with the inclusion of frequency effects (skin effect) in an enhanced transport delay model for electric cables of arbitrary length connected to a PWM-IGBT-Variable Frequency Drive (VFD), to better predict overvoltage peaks in the line during transient. The problem and the importance of predicting peak overvoltages to determine the appropriate insulation to be used by cables is addressed. Frequency-domain characterization of cables is considered. A function in the Laplace-s-domain is fitted to such characterized behavior by using genetic algorithms. From the step response of the cable, and using Genetic Algorithms (GA), an impulse function (propagation function) is derived. Such a function is used to predict frequency-dependent voltage and current in longer cables. Simulation and experimental results are provided.
引用
收藏
页码：151 / +
页数：3
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