基于EMD-XGBoost模型的交流输电线路可听噪声有效数据预测方法研究  

Study on Predication Method of Audible Noise Valid Data for AC Transmission Lines

作　　者：李振华[1] 程紫熠 陈兴新 姚为方 谢辉春 LI Zhenhua;CHENG Ziyi;CHEN Xingxin;YAO Weifang;XIE Huichun(Electrical Engineering&New Energy,China Three Gorges University,Hubei Yichang 443000,China;State Grid Anhui Electric Power Corporation Research Institute,Hefei 230601,China;China Electric Power Research Institute Co.,Ltd.Wuhan Branch,Wuhan 430074,China)

机构地区：[1]三峡大学电气与新能源学院,湖北宜昌443000 [2]国网安徽省电力有限公司电力科学研究院,合肥230601 [3]中国电力科学研究院有限公司武汉分院,武汉430074

出　　处：《高压电器》2023年第6期180-187,共8页High Voltage Apparatus

基　　金：国家电网公司总部科技项目(8100202055158A-0-0-00)。

摘　　要：背景噪声的存在使得采集输电线路可听噪声时会得到大量的无效数据,影响了可听噪声作为输电线路设计标准时的准确性。为此在夜间收集了可听噪声A声级、可听噪声5000 Hz以上分量及气象因素,并研究了可听噪声A声级与可听噪声5000 Hz以上分量以及气象因素之间的相关性。通过建立EMD算法优化的XGBoost模型,对可听噪声5000 Hz以上分量,气象因素与A声级有效数据之间的相关性进行了验证。结果表明:可听噪声8000 Hz分量、可听噪声16000 Hz分量、可见范围、温度均对A声级可听噪声预测准确率有促进作用。The existence of background noise can,in case of collecting audible noise of transmission lines,obtain a large amount of invalid data,which affects the accuracy of audible noise as a standard of transmission line design.Therefore,the A sound level of audible noise,the component of audible noise above 5000 Hz and meteorological factors are collected at night.The correlation among the A sound level of audible noise,the component of audible noise above 5000 Hz and meteorological factors are studied.The correlation among the the valid data of component of audible noise above 5000 Hz and meteorological factors as well as A sound level is verified by way of XGBoost model which is optimized by the EMD algorithm.The result shows that the component of 8000 Hz and 16000 Hz audible noise,the visible range and the temperature can promote the prediction accuracy of A sound level of audible noise.

关 键 词：交流 A声级 相关性 有效数据 可听噪声 

分 类 号：TM75[电气工程—电力系统及自动化] TP181[自动化与计算机技术—控制理论与控制工程]