| 湿度、温度对工频电场强度的影响 |
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| 引用本文： | 俞集辉,郑亚利,徐禄文,杜松旺,邓前锋.湿度、温度对工频电场强度的影响[J].重庆大学学报(自然科学版),2009,32(2):137-140. |
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| 作者姓名： | 俞集辉 郑亚利 徐禄文 杜松旺 邓前锋 |
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| 作者单位： | 俞集辉,郑亚利,YU di-hui,ZHENG Ya-li(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,400030);徐禄文,XU Lu-wen(重庆电力科学,实验研究院,重庆,400015);杜松旺,DU Song-wang(四川省电力公司遂宁公司,四川,遂宁,629000);邓前锋,DENG Qian-feng(重庆市电力公司璧山供电局,重庆,璧山,402760)
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| 摘 要： | 利用西南地区某500 kV变电站内母线下方,不同湿度、温度条件下某点处工频电场强度的测量数据,基于误差反向传播(back propagation,BP)神经网络的基本原理,运用MatLab软件中的网络工具箱建立湿度、温度对工频电场强度影响的人工神经网络模型.选择合适的训练函数及改进的BP算法训练此模型,得到模型的误差最大值仅为0.047 5.最后设置不同的湿度、温度向量,用训练好的网络得到的预测结果表明:在温度不变的条件下工频电场随湿度的增大而增加;在湿度不变的条件下,温度对工频电场的影响规律还需进一步研究.
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| 关 键 词： | 神经网络 湿度 温度 工频电场强度 |
Effect of humidity and temperature on power electric field intensity |
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| YU Ji-hui,ZHENG Ya-li,XU Lu-wen,DU Song-wang,DENG Qian-feng.Effect of humidity and temperature on power electric field intensity[J].Journal of Chongqing University(Natural Science Edition),2009,32(2):137-140. |
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| Authors: | YU Ji-hui ZHENG Ya-li XU Lu-wen DU Song-wang DENG Qian-feng |
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| Institution: | 1.State Key Laboratory of Power Transmission Equipment and System Security and New Technology;Chongqing University;Chongqing 400030;P.R.China;2.Chongqing Electric Power Testing and Research;Chongqing 400015;3.Sichuan Electric Power Corporation;Suining Branch;Suining 629000;4.Chongqing Electric Power Core Bishan Power Supply Bureau;Chongqing 402760;P.R.China |
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| Abstract: | We measure power electric-field intensity at a substation in southwestern P.R. China at various humidity levels and temperatures.Measurement data and a back propagation neural network are used to construct a model of electrical field intensity responses to fluctuations in humidity and ambient temperatures.The maximum error is 0.047 5.The results show that the power electric-field intensity increases as humidity rises when the temperature is constant;when humidity is a constant,temperature changes do not aff... |
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| Keywords: | neural network humidity temperature power electric-field intensity |
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