| 电网背景谐波电压测量与研究 |
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| 引用本文： | 贺建闽,黄治清,李群湛.电网背景谐波电压测量与研究[J].铁道学报,2005,27(6):28-33. |
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| 作者姓名： | 贺建闽 黄治清 李群湛 |
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| 作者单位： | 西南交通大学,电气工程学院,四川,成都,610031 |
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| 基金项目： | 铁道部科学技术研究开发计划项目（2002J034） |
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| 摘 要： | 背景谐波电压是谐波研究中的一个重要特征参数,其一方面来自上级电网谐波电压的渗透,另一方面来自本级电网其他谐波源的影响。背景谐波电压不仅与电网中谐波源强弱、网压变化有关,而且与电网容量、结构有关。由于其直接决定电网承受畸变负荷的能力,所以有必要对各种电网的背景谐波状况作全面了解和测量。本文提出一种根据用户谐波特征进行背景谐波电压测量的方法,并对一些小电网背景谐波电压放大现象进行初步分析。
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| 关 键 词： | 背景谐波电压 电气化铁道 牵引变电所 |
| 文章编号： | 1001-8360（2005）06-0028-06 |
| 收稿时间： | 2004-06-23 |
| 修稿时间： | 2004-12-14 |
Measurement and Study of Background Harmonic Voltages in Power Systems |
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| HE Jian-min,HUANG Zhi-qing,LI Qun-zhan.Measurement and Study of Background Harmonic Voltages in Power Systems[J].Journal of the China railway Society,2005,27(6):28-33. |
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| Authors: | HE Jian-min HUANG Zhi-qing LI Qun-zhan |
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| Institution: | School of Electrical Engineering,Southwest Jiaotong University, Chengdu 610031, China |
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| Abstract: | As an important characteristic parameter in harmonic research,the background harmonic voltage results from high-voltage system harmonic penetration and other harmonic sources in the same level supply system.The background harmonic voltage is related with not only the power of harmonic sources and variation of power line voltages but also the power system structure and capability.The capability of power systems to bear disturbance loads is determined by the background harmonic voltage directly,so it is necessary to measure and study background harmonics in different power systems comprehensively.In this paper,a method to measure background harmonic voltages is proposed on the basis of users harmonic current characteristics,and magnification of background harmonic voltages in small power supply networks is analyzed preliminarily. |
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| Keywords: | background harmonic voltage electrified railway traction substation |
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