| 四芯建筑低压配电电缆的谐波阻抗研究 |
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| 引用本文： | 高子余,张展,艾永乐.四芯建筑低压配电电缆的谐波阻抗研究[J].煤矿机电,2011(1). |
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| 作者姓名： | 高子余 张展 艾永乐 |
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| 作者单位： | 1. 河南煤业化工集团公司,鹤壁煤业集团公司,河南,鹤壁,458000
2. 河南理工大学电气学院,河南,焦作,454000 |
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| 摘 要： | 电缆的阻抗在供电系统以及谐波评估中是一重要参数,通常认为在已确定电缆型号的情况下,其电阻值不变,谐波电抗的大小是基频电抗的谐波倍数,即电感值不变。通过实验的方法对横截面为95、300 mm2的四芯铠装电力电缆谐波阻抗进行测试,得到谐波次数从基波到49次的谐波阻抗。实验结果表明,电缆电感具有频率依赖性,它随着谐波次数的增加而下降。最后应用实测数据和曲线拟合技术得到电缆电阻和电感的计算公式。
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| 关 键 词： | 电力电缆 谐波阻抗 曲线拟合 |
Study on Harmonics Impendence of Four Cores Architecture Low Voltage Power Distribution Cable |
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| GAO Zi-yu,ZHANG Zhan,AI Yong-le.Study on Harmonics Impendence of Four Cores Architecture Low Voltage Power Distribution Cable[J].Colliery Mechanical & Electrical Technology,2011(1). |
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| Authors: | GAO Zi-yu ZHANG Zhan AI Yong-le |
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| Affiliation: | GAO Zi-yu1,ZHANG Zhan2,AI Yong-le2(1.Henan Coal Chemical Company,Hebi Coal Co.,Ltd.,Hebi 458000,China,2.Henan Polytechnic University,College of Electronic and Engineering,Jiaozuo 454000,China) |
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| Abstract: | The cable impedance is one kind of important parameter in the power supply system and harmonic estimation.Usually that have been identified in the case of cable model,the resistance constant,the size of harmonic reactance is the fundamental frequency reactance of the harmonic multiples of the same inductance value.By experiment,the 95、300 mm2 cross-section of four cores electric power cable harmonic impendence was tested,obtained harmonic impedance of harmonic times from fundamental harmonic frequency to 49 times.The experiment result showed that the cable has a frequency-dependent inductance,it is declining with the increase of harmonic times.Finally apply measured data and curve fitting technique has got the formula of cable resistance and inductance. |
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| Keywords: | electric power cable harmonic impedance fitted curve |
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