| 两种非全相断线对偶性的研究 |
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| 引用本文： | 刘云鹏,孟庆臣.两种非全相断线对偶性的研究[J].电力系统保护与控制,2008,36(23):14-17,64. |
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| 作者姓名： | 刘云鹏 孟庆臣 |
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| 作者单位： | 1.兰州交通大学自动化与电气工程学院，甘肃 兰州 730070;2. 河南永城市供电有限责任公司, 河南 永城 476600 |
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| 摘 要： | 单相断线和两相断线是三相电网中最常见的两种故障，占纵向不对称故障的绝大多数。因此，分析纵向不对称故障是必要的，一方面要计算非全相运行时的负序分量和零序分量，另一方面要分析非全相运行的电气特点。通过对两种断线故障的分析，应用相分量法和对称分量法，绘制出其等效的复合序网图，计算出各相的相电流和相电压。这两种故障虽然断开形式不同，但二者的物理本质、内在规律，存在明显的相似性。将通过逐项对比分析，着重阐明二者的对偶性。
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| 关 键 词： | 非全相 单相断线 两相断线 对偶性 |
Study on dual characteristic of two kinds open phase running |
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| LIU Yun-peng,MENG Qing-chen.Study on dual characteristic of two kinds open phase running[J].Power System Protection and Control,2008,36(23):14-17,64. |
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| Authors: | LIU Yun-peng MENG Qing-chen |
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| Affiliation: | LIU Yun-peng1,MENG Qing-chen2 (1.School of Automation & Electrical Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China,2.Yongcheng Power Supply Co.,Ltd,Yongcheng 476600,China) |
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| Abstract: | Single phase broken line and two-phase broken line are two faults easy too see in power system,which account more in all broken line fault.So it is necessary to analyze unbalanced faults,on one hand it needs to calculate negative sequence component and zero sequence component on open phase running,and on the other it need to analyze the characteristic of electrical open phase running.By the analysis of two kinds of open phase running,this paper uses phase-coordinate and symmetrical component to draw out the... |
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| Keywords: | open phase single phase broken line two-phase broken line dual characteristic |
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