基于站域信息识别的二次交流采样回路智能预警技术研究与应用  

Research and Application of Intelligent Warning Technology for Secondary AC Sampling Circuit Based on Station Domain Information Recognition

作　　者：董鹏 郑少明 刘丹 宿洪智 郭明宇 DONG Peng;ZHENG Shaoming;LIU Dan;SU Hongzhi;GUO Mingyu(North China Branch of State Grid Corporation of China,Beijing 100053,China;Wuhan Zhongyuan Huadian Science and Technology Co.,Ltd.,Wuhan 430223,China)

机构地区：[1]国家电网有限公司华北分部,北京100053 [2]武汉中元华电科技股份有限公司,武汉430223

出　　处：《自动化与仪器仪表》2025年第2期176-179,共4页Automation & Instrumentation

基　　金：国网华北分部华北电网故障录波主站系统功能完善化项目(SGNC0000DKXX2200134)。

摘　　要：随着电力系统的不断发展,二次交流采样回路在电力系统中的地位日益重要,然而,由于各种因素的影响,采样回路可能会出现故障,给电力系统的稳定运行带来严重威胁。提出了一种基于站域信息识别的二次交流采样回路智能预警技术。首先通过实时采集站域内的继电保护装置和故障录波器的录波数据,利用通用型的电网录波语义模糊识别和匹配技术,智能识别采样回路对应的通道;其次采用时间自适应补偿与匹配方法,解决装置未对时情况下的海量数据的统一电网扰动判别;最后,分析通道的直流、基波、高次谐波分量以及不同序分量等信息,识别异常特征,实现二次回路运行状态进行智能分析和预警。通过现场实际应用证明,该技术可有效地识别出采样回路的异常情况,提前暴露二次设备隐患,提升电力系统的安全稳定运行。With the continuous development of the power system,the position of the secondary AC sampling circuit in the power system is becoming increasingly important.However,due to various factors,the sampling circuit may malfunction,posing a serious threat to the stable operation of the power system.This article proposes an intelligent early warning technology for secondary AC sam-pling circuits based on station domain information recognition.Firstly,by collecting real-time recorded data from relay protection de-vices and fault recorders within the station area,and utilizing universal grid recorded semantic fuzzy recognition and matching technol-ogy,the corresponding channels of the sampling circuit are intelligently identified;Secondly,a time adaptive compensation and matc-hing method is adopted to solve the unified power grid disturbance discrimination of massive data when the device is not synchronized;Finally,analyze the DC,fundamental,high-order harmonic components,and different sequence components of the channel,identify abnormal characteristics,and achieve intelligent analysis and warning of the operating status of the secondary circuit.Through on-site practical application,it has been proven that this technology can effectively identify abnormal situations in the sampling circuit,ex-pose hidden dangers in secondary equipment in advance,and improve the safe and stable operation of the power system.

关 键 词：站域信息 模糊识别 异常信息识别 录波主站 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]