| 非线性负荷对电网电压和电流的影响 |
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| 引用本文： | 邢颖,李宝树. 非线性负荷对电网电压和电流的影响[J]. 电气应用, 2007, 26(8): 25-28,52 |
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| 作者姓名： | 邢颖 李宝树 |
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| 作者单位： | 华北电力大学电气与电子工程学院,071003 |
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| 摘 要： | 电力系统非线性负荷的不断增加,对电网造成的影响日益突出.本文结合线性负荷与非线性负荷的特性,比较了非线性负荷投入前后电源侧和负荷侧电压和电流的变化,利用叠加原理从理论上分析了无背景谐波时非线性负荷对电网电压和电流的影响,并通过仿真验证了结论,同时提出了在建立综合负荷模型时应考虑非线性负荷对其的影响.
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| 关 键 词： | 非线性负荷 谐波 电压和电流 负荷模型 |
| 修稿时间： | 2006-12-19 |
The Impact of Nonlinear Load on the Voltage and Current of the Grid |
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| Xing Ying. The Impact of Nonlinear Load on the Voltage and Current of the Grid[J]. Electrotechnical Application, 2007, 26(8): 25-28,52 |
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| Authors: | Xing Ying |
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| Affiliation: | The North of China Electric Power University |
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| Abstract: | The impact of nonlinear load on the grid is gradually outstanding due to the increase of the nonlinear load in power systems. This paper ,combining wi th the characteristics of the linear and nonlinear loads, compares the changes b etween the source and loads when the nonlinear load is thrown into grid fore and after, the nonlinear load impacting on voltage and current of the grids without background harmonics is analyzed theoretically using the superposition principl e. The conclusion is verified by simulation. Meanwhile, the influencing factor c aused by the nonlinear load should be considered when building the synthesizing load modeling is proposed. |
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| Keywords: | nonlinear load harmonic voltage and curre nt load modeling |
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