Permeability characteristics of high-order harmonics of traction network for three-phase power system

被引：0
作者：
School of Electrical Engineering, Southwest Jiaotong University, Chengdu [1 ]
610031, China
机构：
[1] School of Electrical Engineering, Southwest Jiaotong University, Chengdu
来源：
Xinan Jiaotong Daxue Xuebao | / 5卷 / 961-969期
关键词：
Filtering; Harmonic model; High-order harmonics; Three-phase system; Transformer;
D O I：
10.3969/j.issn.0258-2724.2015.05.028
中图分类号：
学科分类号：
摘要：
In order to study the influences of the high order harmonics of traction network on three-phase power system, the harmonic model of impedance-matching balanced transformer was established to analyze the permeability characteristics of high-order harmonics for public grid high-voltage three-phase system, and the harmonic model of the inverse Scott transformer was established to analyze the permeability characteristics of high-order harmonics for the low-voltage three-phase system of traction substation. The traction substation with severe harmonic distortion was measured, and the harmonic measured data were analyzed and compared with those resulted from harmonic models of impedance-matching balanced transformer and inverse Scott transformer. A filtering scheme based on Y-type wave-trap high-pass filter was proposed which is applied to the low-voltage three-phase system of traction substation, and a set of filtering devices was developed. The results show that the high-order harmonics less penetrate into the high-voltage three-phase system, but significantly into the low voltage three-phase system of traction substation. After filtering, the harmonic distortion rate of a-phase voltage at traction substation is reduced from 12.25% to 1.94%, and the harmonic distortion rates of b-phase and c-phase are also significantly reduced. This indicates that the developed device can filter the high-order harmonics and effectively improve the power supply quality of the low-voltage three-phase system. ©, 2015, Science Press. All right reserved.
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页码：961 / 969
页数：8
相关论文
共 14 条
  • [1] Cui H., Feng X., Song W., Modeling of high-order harmonic load for high speed train, Electric Power Automation Equipment, 33, 7, pp. 92-99, (2013)
  • [2] Guo L., Li Q., Liu W., Et al., Simulation analysis of dynamic characteristic of harmonics for high-speed locomotive running at rated power, Journal of Southwest Jiaotong University, 44, 6, pp. 835-840, (2009)
  • [3] Li Q., On the calculation and effect of harmonics, Journal of the China Railway Society, 13, 10, pp. 59-69, (1991)
  • [4] Lee H.M., Lee C., Jang G., Et al., Harmonic analysis of the Korean high-speed railway using the eight-port representation model, IEEE Transactions on Power Delivery, 21, 2, pp. 979-986, (2006)
  • [5] He Z., Hu H., Fang L., Et al., Research on the harmonic in high-speed railway traction power supply system and its transmission characteristic, Proceedings of the CSEE, 31, 16, pp. 55-62, (2011)
  • [6] Zhang Y., Liu Z., Modeling and characteristic analysis of harmonic in high-speed railway traction network based on PSCAD/EMTDC platform, Power System Technology, 5, pp. 70-75, (2011)
  • [7] Han X., Wang B., Gao S., Et al., Harmonic resonance of at power supply system of high speed railway based on train-network coupling, Journal of Southwest Jiaotong University, 49, 4, pp. 582-589, (2014)
  • [8] Xu Z., Li B., Zhou T., Et al., Harmonic resonance assessment of traction system with moving load based on modal analysis, Power System Protection and Control, 38, 19, pp. 76-80, (2010)
  • [9] Xiao L., Liu F., Huang M., The mathematical model and test verification of the study on the operating characteristic of impedance matching balance transformer, Transactions of China Electrotechnical Society, 8, 4, pp. 11-15, (1993)
  • [10] Wu D., Xu Z., A research on harmonic model of three phase multi-legged transformer, Power System Technology, 27, 4, pp. 15-21, (2003)
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