温湿度对交流电晕无线电干扰的影响

Gaodianya Jishu/High Voltage Engineering(2011)

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Abstract
影响输电线路电磁环境的因素较多,其中环境气候是最关键影响因素之一。相关研究表明,温度和湿度变化对电晕的影响较为显著。为此,采用步入式环境气候小室和相应高压设备,针对温度和湿度对交流电晕产生的无线电干扰开展了试验研究,获得了温度和湿度改变时细导线无线电干扰变化量,并通过线性多元回归方法获得了温度、湿度与交流电晕无线电干扰的关系式。研究结果认为,0.5MHz频率的无线电干扰随温度增加而递增,随湿度增加而降低。回归公式的结果显示,温度每升高1°C,无线电干扰升高0.029dB;相对湿度每升高1%,无线电干扰降低0.06dB。
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Key words
AC corona,Atmospheric temperature,Environment test room,Radio interference,Regression analysis,Relative humidity
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