基于物联网的电力系统继电保护回路运行状态在线监测方法  

An Online Monitoring Method for the Operation Status of Power System Relay Protection Circuits Based on the IoT

作　　者：宋少杰 马敏芝 SONG Shaojie;MA Minzhi(Baoji Electric Power Supply Company,State Grid Shaanxi Electric Power Co.,Ltd.,Baoji 721004,China)

机构地区：[1]国网陕西省电力有限公司宝鸡供电公司,陕西宝鸡721004

出　　处：《河南科技》2024年第21期13-16,共4页Henan Science and Technology

摘　　要：【目的】在数据处理过程中,常规在线监测方法只能通过滤波操作对继电保护回路运行数据进行处理,并没有对数据进行精准化处理,使得在线监测数据精准度低。为了解决这一问题,提出基于物联网的电力系统继电保护回路运行状态在线监测方法。【方法】首先,在使用常规方法对数据进行滤波操作处理的基础上,将数据输入到物联网的传输层和应用层中,改变特征图大小;其次,通过构建电力系统继电保护回路运行状态特征模型对数据处理结果进行特征提取,从而实现电力系统继电保护回路的在线监测。【结果】实验结果表明,与基于深度学习模型、基于PLC技术的电力系统继电保护回路运行状态在线监测方法相比,基于物联网的电力系统继电保护回路运行状态在线监测方法的监测数据精准度较高,其对四类运行标签的监测精准度分别为98.7%、92.2%、75.0%和100%,应用效果较好。【结论】由此证明,应用所提方法可对电力系统继电保护回路运行状态进行良好监测,能有效保障电力系统稳定运行。[Purposes]Conventional online monitoring methods only process the operation data of the relay protection circuit through filtering operations during the data processing process,without further precision processing of the data,resulting in low accuracy of online monitoring data.In response to the above issues,a method for online monitoring of the operation status of power system relay protection circuits based on the Internet of Things(IoT)is proposed.[Methods]Firstly,on the basis of using filtering operations to process data in conventional methods,the data is input into the transmission and application layers of the IoT for feature map changes.Then,the data processing results are extracted by constructing a feature model for the operation status of power system relay protection circuits,thereby achieving online monitoring of power system relay protection circuits.[Findings]The experimental results show that compared with the online monitoring method of power system relay protection circuit operation status based on deep learning model and PLC technology,the online monitoring method of power system relay protection circuit operation status based on IoT has higher monitoring data accuracy,whose monitoring accuracy of the four types of operation labels is 98.7%,92.2%,75.0%and 100%respectively,and the application effect is great.[Conclusions]It can be proved that the proposed method can well monitor the operation status of the relay protection circuit of the power system,which can effectively guarantee the stable operation of the power system.

关 键 词：物联网 电力系统 继电保护 在线监测 运行状态 

分 类 号：TM77[电气工程—电力系统及自动化]