...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Electric power systems research >Methods to ascertain the resistance of stranded conductors in the frequency range of 40Hz-150kHz
【24h】

Methods to ascertain the resistance of stranded conductors in the frequency range of 40Hz-150kHz

机译：确定40Hz-150kHz频率范围内绞合导体电阻的方法

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Although a few years have passed since the first electromagnetic compatibility problem occurred in the supraharmonic frequency range (2-150 kHz), a lot of questions are still to be answered before the completion of appropriate electromagnetic compatibility (EMC) standards. An exciting question is how supraharmonic disturbances spread and aggregate on the network. To get a better picture of this, the frequency dependent characteristics of the network elements must be examined. This paper deals with the resistance of three stranded conductors with different cross section areas typically used in the low voltage (LV) and medium voltage (MV) distribution lines. From the methodology point of view, the problem was approached by laboratory measurements, numerical simulations with Filament technique, which was realized in MATLAB. In addition the results are compared with a few other analytical calculation methods (e.g. series expansion of Bessel functions, skin factor method, Hankel method, K. Simonyi's approximation) found in the literature. These were performed, assessed and compared. Besides that, a new method combining two analytical methods is proposed to approximate the internal impedance of conductors. It must be noted that our intention was to cover not only the supraharmonics area, but also the power harmonics range; therefore, investigations start from 40 Hz instead of 2 kHz.
机译：尽管自超谐波频率范围（2-150 kHz）出现第一个电磁兼容性问题以来已经过去了几年，但在完成适当的电磁兼容性（EMC）标准之前，仍有许多问题需要解答。一个令人兴奋的问题是超谐波干扰如何在网络上传播和聚集。为了对此有更好的了解，必须检查网元的频率相关特性。本文介绍了通常在低压（LV）和中压（MV）配电线路中使用的截面积不同的三股导体的电阻。从方法论的角度来看，这个问题是通过实验室测量，用Filament技术进行数值模拟来解决的，这是在MATLAB中实现的。此外，将结果与文献中发现的其他几种分析计算方法（例如贝塞尔函数的级数展开，表皮因子方法，汉克尔方法，K。西蒙尼近似）进行了比较。这些被执行，评估和比较。此外，提出了一种结合两种分析方法的新方法来近似估计导体的内部阻抗。必须指出的是，我们的意图不仅是要覆盖超谐波区域，而且还要覆盖电力谐波范围；因此，研究从40 Hz开始而不是2 kHz。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号