考虑时滞影响的新型电力系统微弱广域信号检测技术  

A Novel Weak Wide Area Signal Detection Technology for Power Systems Considering the Influence of Time Delay

作　　者：杜欣 DU Xin(State Grid Hangzhou Power Supply Company,Hangzhou 310000,China)

机构地区：[1]国网杭州供电公司,浙江杭州310000

出　　处：《通信电源技术》2023年第12期42-44,共3页Telecom Power Technology

摘　　要：针对新型电力系统微弱信号传输过程中存在时滞难以及时高效检测的问题,提出考虑时滞影响的新型电力系统微弱广域信号检测技术。根据考虑时滞影响的新型电力系统数学模型,得到微弱广域信号的状态量与代数量,利用小波变换去除噪声,提取频率特征与幅值特征,基于神经网络建立检测模型。实验结果表明,技术准确率为98.74%、精度率为96.58%、召回率为100%、F1值为93.92%。Aiming at the problem of time delay in the transmission process of weak signals in the new power system,a new weak wide area signal detection technology considering the impact of time delay is proposed.Based on a new power system mathematical model considering the influence of time delay,the state and algebraic quantities of weak wide area signals are obtained.Wavelet transform is used to remove noise,extract frequency and amplitude features,and establish a detection model based on neural networks.The experimental results show that the technical accuracy of this article is 98.74%,the accuracy rate is 96.58%,the recall rate is 100%,and the F1 value is 93.92%.

关 键 词：时滞影响 新型电力系统 微弱广域信号 信号检测技术 

分 类 号：TM77[电气工程—电力系统及自动化]