变电站主变压器低压侧故障自动化监测方法  

Automatic monitoring method for low-voltage side fault of main transformer in substation

作　　者：邓庆红 时谊 陶永健[2] 吴小忠 DENG Qing-hong;SHI Yi;TAO Yong-jian;WU Xiao-zhong(State Grid Hunan Electric Power Co.Ltd.Construction Company(Consulting Company),Changsha410007,China;Xj Group Corporation Co.Ltd,Xuchang 461000,China;State Grid Hunan ElectricPower Company Limited,Changsha 410007,China)

机构地区：[1]国网湖南省电力有限公司建设分公司(咨询公司),湖南长沙410007 [2]许继集团有限公司,河南许昌461000 [3]国网湖南省电力有限公司,湖南长沙410007

出　　处：《电子设计工程》2019年第9期64-68,共5页Electronic Design Engineering

摘　　要：传统变电站低压故障监测技术存在明显的检测通道配置混乱现象。为解决上述问题,提出新型的变电站主变压器低压侧故障自动化监测方法。通过自动化处理手段获取完善的低压监测数据,并借助准确的数据精度分析结果,选择单一的修正模型,完成变电站主变压器低压侧的故障数据修正。在此基础上,通过设计故障数据采集单元、确定主变压器实测单元编号、深化监测地址编码的方式,达到完善自动化监测流程的搭目的,实现变电站主变压器低压侧故障自动化监测方法的搭建。对比实验结果显示,在基本变压频率为2.5 Hz、5 Hz、7.5 Hz、10 Hz的情况下,通道分配参数的最大值始终不超过0.65,检测通道配置混乱现象得到有效抑制。The traditional substation low-voltage fault monitoring technology has obvious confusion in the detection channel configuration. To solve the above problems,a new automatic monitoring method for low-voltage side faults of main transformer in substation is put forward. Through the automatic processing method to obtain perfect low-voltage monitoring data,and with the help of accurate data accuracy analysis results,select a single correction model to complete the substation main transformer low-voltage side of the fault data correction. On this basis,by designing the fault data acquisition unit,confirming the number of the main transformer measurement unit and deepening the way of monitoring address coding,the goal of perfecting the automatic monitoring process is achieved,and the method of automatic fault monitoring on the low-voltage side of the main transformer in substation is established. The experimental results show that the maximum value of channel assignment parameter is not more than 0.65 under the condition of 2.5 Hz,5 Hz,7.5 Hz and 10 Hz,and the confusion of channel configuration is effectively suppressed.

关 键 词：变电故障 自动化监测 数据获取 精度分析 修正模型 地址编码 

分 类 号：TN957[电子电信—信号与信息处理]