基于历史数据语义相似度的智能变电站虚端子自动连接  

Automatic matching method of a virtual terminal in intelligent substation based on semantic similarity of historical data

作　　者：范卫东 冯晓伟 董金星 胡炎[2] 王文琪 高翔 FAN Weidong;FENG Xiaowei;DONG Jinxing;HU Yan;WANG Wenqi;GAO Xiang(State Grid Inner Mongolia Eastern Power Co.,Ltd.,Hohhot 010020,China;School of Electronic Information and Electrical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;Shanghai Yihao Automation Co.,Ltd.,Shanghai 201204,China)

机构地区：[1]国网内蒙东部电力有限公司,内蒙古呼和浩特010020 [2]上海交通大学电子信息与电气工程学院,上海200240 [3]上海毅昊自动化有限公司,上海201204

出　　处：《电力系统保护与控制》2020年第17期179-186,共8页Power System Protection and Control

基　　金：国家电网公司科技项目资助(SGHAJYOOSJJS1700022)。

摘　　要：人工连接智能变电站二次设备虚端子花费时间长,而且完成质量受到人为因素的影响。基于虚端子功能描述信息,通过历史虚连接数据计算虚连接语义相似度,建立二次设备间虚端子自动匹配的数学模型,使用匹配正确概率完成匹配结果的筛选。根据典型二次间隔对智能变电站二次设备进行划分,将智能变电站全站虚端子连接问题简化为二次间隔内的二次设备间的虚端子匹配问题。最后利用前旗220 kV智能变电站算例验证了所提出方法的有效性。It takes a long time to artificially connect the virtual terminal of a secondary substation of an intelligent substation,and the quality of the completion is affected by human factors.Based on the virtual terminal function description information,this paper puts forward a method that calculates the semantic similarity of virtual connections through historical virtual connection data,establishes a mathematical model for automatic matching of virtual terminals between secondary devices,and uses the probability to complete the screening of matching results.The secondary sub-equipment of the intelligent substation is divided according to the typical secondary interval,and the virtual terminal connection problem of the intelligent substation is simplified to the virtual terminal matching problem of the secondary devices in the secondary interval.Finally,the effectiveness of the proposed method is verified with the example of the 220 kV intelligent substation of Qianqi.

关 键 词：虚端子自动匹配 虚连接语义相似度 匹配正确概率 典型二次间隔 

分 类 号：TM63[电气工程—电力系统及自动化] TP391.1[自动化与计算机技术—计算机应用技术]