| 基于改进正弦插值的闪变测量方法 |
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| 引用本文： | 周林,张有玉,刘强,郭珂,代璐,曾意.基于改进正弦插值的闪变测量方法[J].电力系统自动化,2010,34(18):62-66. |
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| 作者姓名： | 周林 张有玉 刘强 郭珂 代璐 曾意 |
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| 作者单位： | 重庆大学输配电装备及系统安全与新技术国家重点实验室,重庆市,400044 |
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| 基金项目： | 输配电装备及系统安全与新技术国家重点实验室自主研究项目 |
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| 摘 要： | 荧光灯和发光二极管(LED)灯目前已大规模使用,但是按国际电工委员会(IEC)标准制造的闪变仪存在无法检测出由间谐波引起的闪变的缺陷.为了弥补这一缺陷,考虑到正弦信号采样波形的显示用正弦内插的方法更能接近原始信号,文中详细分析了基于正弦插值的闪变测量方法.针对正弦插值可能会引起闪变错误评估的问题,分析了正弦插值的误差来源,提出了将正弦插值前减去常数项的基于改进正弦插值的闪变测量方法.改进后的测量方法不仅能测量由低频段间谐波引起的闪变,也能检测出由高频段间谐波引起的闪变,对进一步研究闪变测量方法起到了促进作用.
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| 关 键 词： | 闪变仪 间谐波 正弦插值 闪变测量 国际电工委员会(IEC) |
| 收稿时间： | 2010/4/15 0:00:00 |
| 修稿时间： | 8/27/2010 8:15:03 PM |
A Flicker Measuring Method Based on Improved Sine Interpolation |
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| ZHOU Lin,ZHANG Youyu,LIU Qiang,GUO Ke,DAI Lu,ZENG Yi.A Flicker Measuring Method Based on Improved Sine Interpolation[J].Automation of Electric Power Systems,2010,34(18):62-66. |
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| Authors: | ZHOU Lin ZHANG Youyu LIU Qiang GUO Ke DAI Lu ZENG Yi |
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| Affiliation: | ZHOU Lin,ZHANG Youyu,LIU Qiang,GUO Ke,DAI Lu,ZENG Yi(State Key Laboratory of Power Transmission Equipment & System Security , New Technology,Chongqing University,Chongqing 400044,China) |
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| Abstract: | With the reduction of the number of incandescent lamps together with the large-scale usage of fluorescent and light emitting diode(LED)lights at the same time,the deficiency of International Electrotechnical Commission(IEC)flickermeter that can not measure interharmonic-caused voltage flickers has become increasingly apparent.It is known that the display of measured sinusoidal waveforms is closer to the original signal if sine interpolation method is used.Clearly,the sine interpolation method is able to ove... |
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| Keywords: | flickermeter interhamonic sine interpolation flicker measuring IEC |
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