| 考虑铁磁元件励磁特性的电网暂态计算 |
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| 引用本文： | 张瑛 张小青. 考虑铁磁元件励磁特性的电网暂态计算[J]. 电力学报, 2005, 20(3): 235-236,239 |
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| 作者姓名： | 张瑛 张小青 |
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| 作者单位： | 北京交通大学电气工程学院,北京100044 |
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| 摘 要： | 介绍含铁磁元件电力网络的合闸暂态过电压的模拟计算方法,其中铁磁元件的非线性特性励磁曲线采用逐点线性化方式加以处理。首先给出了变压器的等值电路模型,再以该模型为基础,运用国际上流行的电磁暂态计算软件ATP分别对计及与不计变压器励磁支路的系统网络进行了合闸暂态模拟,对比模拟结果表明:非线性励磁曲线的考虑能在一定程度上对合闸过电压产生影响。
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| 关 键 词： | 铁磁元件 励磁曲线 过电压 |
| 文章编号： | 1005-6548（2005）03-0235-02 |
| 收稿时间： | 2005-01-17 |
| 修稿时间： | 2005-01-172005-03-07 |
Transient Calculation of the Power Networks Containing Ferromagnetic Elements |
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| ZHANG Ying, ZHANG Xiao-qing. Transient Calculation of the Power Networks Containing Ferromagnetic Elements[J]. Journal of Electric Power, 2005, 20(3): 235-236,239 |
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| Authors: | ZHANG Ying ZHANG Xiao-qing |
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| Affiliation: | School of Electrical Engineering Beijing Jiaotong University,Beijing 100044,China |
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| Abstract: | A simulation method is proposed in this paper for transient calculation of the power networks containing ferromagnetic elements. In the method, the nonlinear magnetizing curve of power transformer is represented by the procedure of point by point piecewise. The energized transients are simulated with ATP, form which the transient overvoltages are obtained. The influence of magnetizing curve on the overvoltages is investigated by comparison of the simulated results including the magnetizing curves with those excluding the magnetizing curves. |
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| Keywords: | ferromagnetic element magnetizing curve over-voltage |
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