Estimation of electrical traction load harmonic impact on distribution networks.

被引：1
|
作者：
Prudenzi, A [1 ]
机构：
[1] Univ Aquila, Elect Engn Dept, I-67040 Laquila, Italy
来源：
2003 IEEE POWER ENGINEERING SOCIETY GENERAL MEETING, VOLS 1-4, CONFERENCE PROCEEDINGS | 2003年
关键词：
harmonic distortion; time-varying harmonics; metro-transit system;
D O I：
10.1109/PES.2003.1270490
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
The paper deals with the time varying aspect of harmonics by facing the problem of harmonic impact estimation of DC electrified trains in operation in subway systems. To this aim, the paper illustrates the results of a detailed harmonic survey performed on such a system operating in an Italian city. The system provides railway lines supplied at 1,500 V DC through several AC/DC converters. The power supply of the system is provided at medium voltage (20 kV) from five different connections to the public distribution network. Fourteen AC/DC converter electrical substations (ESS) provide the total demand of the system of about 20 MW. In the paper, the problem of identifying the typical daily patterns of harmonic distortion due to the time-variant non-linear traction load has been assessed. The results thus obtained are finally illustrated and discussed in due detail.
引用
收藏
页码：1166 / 1171
页数：6
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