基于IEC 61850的地铁直流馈线保护信息建模研究  

Research on Protection Information Modeling of Metro DC Feeder Based on IEC 61850

作　　者：苗斌[1] 童晓阳[2] MIAO Bin;TONG Xiaoyang(School of Electrical Engineering,Xi’an Railway Vocational&Technical Institute,Xi’an 710026,China;School of Electrical Engineering,Southwest Jiaotong University,Chengdu 610031,China)

机构地区：[1]西安铁路职业技术学院,电气工程学院,陕西西安710026 [2]西南交通大学,电气工程学院,四川成都610031

出　　处：《微型电脑应用》2024年第11期14-18,共5页Microcomputer Applications

基　　金：陕西省教育厅专项科研计划项目(20JK0860)。

摘　　要：依据IEC 61850标准建立地铁直流馈线保护功能模型,包括实例化定时限过电流保护PTOC、低电压保护PTUV和接触网热过负荷保护PTTR逻辑节点,构建电流上升率和电流增量保护PDDL(DDL保护)及框架泄漏保护PFLC逻辑节点类。采用虚端子构建保护智能电子设备(IED)与其他设备之间的信息交互模型(虚拟输入/输出信息模型)。利用标准中Inputs刻画保护IED内逻辑节点信息交互模型。3个相邻地铁变电所IED信息交互案例表明,双边联跳保护动作信息流可通过地铁直流馈线保护信息模型清晰展现,验证了方案的合理性和可能性。A protection function model of metro DC feeder is established according to IEC 61850,including the logical nodes of definite time over-current protection PTOC,low voltage protection PTUV and cable thermal overload protection PTTR,and creation of the logical node classes of current-rising-rate and current increment protection PDDL(DDL protection)and framework leakage protection PFLC.It uses virtual terminal to construct information interaction model(virtual input/output information model)between protection intelligent electronic device(IED)and other devices.The Inputs in the standard are used to describe the information interaction model of the logical nodes in the protection IED.The cases of IED information interaction between three adjacent metro substations show that the action information flow of the two mutual transfer tripping protection can be clearly displayed through the metro DC feeder protection information model,which verifies the rationality and possibility of the scheme.

关 键 词：IEC 61850标准 地铁直流馈线保护 虚端子 信息交互模型 

分 类 号：TN915[电子电信—通信与信息系统]