谐波干扰对互感器负荷箱校准结果的影响与分析
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摘要
介绍在日常校准工作中,实验室的测量环境都可能会对校准结果造成影响,而在众多因素中谐波干扰带来的影响常常被忽视,所获得的关注度极低。为了验证这一环节产生的负面效果,本文考虑到互感器负荷箱校准的必要性,针对性的进行了谐波干扰试验,分析其产生的原因并提出了一种解决方案。通过试验数据比对和matlab谐波分析来验证其可行性,从而提高了负荷箱校准结果的真实性,减小外界环境因素所造成的引入误差和误判概率。
In the daily calibration work, the laboratory measurement environment may affect the calibration result, and the impact of harmonic interference is often overlooked in many factors, so that the concern received very low. In order to verify the negative effect of this link, consider the transformer load box calibration of the necessity of targeted harmonic interference test, analysis of the causes and put forward a solution. Through the test data comparison and MATLAB harmonic analysis to verify its feasibility, thereby enhancing the authenticity of the load box calibration results, reduce the external environment caused by the introduction of errors and misjudgment probability.
In the daily calibration work, the laboratory measurement environment may affect the calibration result, and the impact of harmonic interference is often overlooked in many factors, so that the concern received very low. In order to verify the negative effect of this link, consider the transformer load box calibration of the necessity of targeted harmonic interference test, analysis of the causes and put forward a solution. Through the test data comparison and MATLAB harmonic analysis to verify its feasibility, thereby enhancing the authenticity of the load box calibration results, reduce the external environment caused by the introduction of errors and misjudgment probability.
引文
[1]国家质量监督检验检疫总局.JJG1021-2007电力互感器检定规程[S].
[2]国家质量监督检验检疫总局.JJG1264-2010互感器负荷箱校准规范[S].
[3]赵修民.在互感器检定中负载误差所造成的检定误差[J].互感器通讯,1993(4):1-5.
[4]王欢,王晓琪,陈晓明,等.二次负荷参数对CVT综合电气特性的影响[J].电测与仪表,2010,47(5):39-42.
[5]吴丽静.二次压降和二次负荷对电能计量准确度的影响[J].电测与仪表,2007,44(3):38-39.
[6]赵玉富,侯慧娟,李静,等.电压互感器误差分析及应注意事项[J].河南电力,2008(2):32-34.
[7]叶晴炜.电流互感器在500kV变电站的应用[J].云南电力技术,2015,43(S2):49-51.
[8]梁志国,耿书雅.基于傅里叶变换的正弦信号源波形失真评价方法[J].计量学报,2004,25(04):357-361.
[9]何兆磊,欧阳润曦,朱梦梦,翟少磊,林聪,朱全聪.电子式电流互感器温度特性测试研究[J].云南电力技术,2017,45(02):11-14+19.
[2]国家质量监督检验检疫总局.JJG1264-2010互感器负荷箱校准规范[S].
[3]赵修民.在互感器检定中负载误差所造成的检定误差[J].互感器通讯,1993(4):1-5.
[4]王欢,王晓琪,陈晓明,等.二次负荷参数对CVT综合电气特性的影响[J].电测与仪表,2010,47(5):39-42.
[5]吴丽静.二次压降和二次负荷对电能计量准确度的影响[J].电测与仪表,2007,44(3):38-39.
[6]赵玉富,侯慧娟,李静,等.电压互感器误差分析及应注意事项[J].河南电力,2008(2):32-34.
[7]叶晴炜.电流互感器在500kV变电站的应用[J].云南电力技术,2015,43(S2):49-51.
[8]梁志国,耿书雅.基于傅里叶变换的正弦信号源波形失真评价方法[J].计量学报,2004,25(04):357-361.
[9]何兆磊,欧阳润曦,朱梦梦,翟少磊,林聪,朱全聪.电子式电流互感器温度特性测试研究[J].云南电力技术,2017,45(02):11-14+19.