变电设备在线监测系统中IEC 61850的一致性测试

Conformance Testing of IEC 61850 in Substation On-line Monitoring System

一致性测试是保证变电设备在线监测智能电子设备(IED)之间互操作性的基础,对智能变电站中在线监测IED的研发及IEC 61850的推广应用具有重要意义。通过分析一致性测试的基本原理,提出在线监测装置、综合监测单元和站端监测单元的一致性测试方案,以降低变电设备在线监测系统集成中互操作失败的风险。开发了一致性测试仿真系统,给出IEC 61850对象模型、抽象通信服务接口、制造报文规范协议栈以及协议分析器的实现方法。采用综合监测单元仿真工具、站端监测单元仿真工具以及Modbus子站模拟软件模拟电容型设备在线监测的通信过程,并给出一致性测试流程与协议数据单元的分析结果,验证了实现方法的正确性和可行性。

The conformance testing is the foundation to ensure interoperability between on-line monitoring intelligent electronic devices（IED）for transformation equipment,and has great significance for the development of on-line monitoring IED and popularization of IEC 61850in smart substation.By analyzing the basic principle of conformance testing,the conformance testing schemes for on-line monitoring device,comprehensive monitoring unit and substation side monitoring unit are proposed,in order to reduce risks of interoperability failure in on-line monitoring system integration process of substation equipment.The conformance simulation testing system is developed,and the implementation methods of IEC 61850object model,abstract communication service interface,manufacturing message specification protocol stack and protocol analyzer have been given.By applying self-developed simulation software tool to comprehensive monitoring unit,substation side monitoring unit and Modbus slave station,the on-line monitoring communication process of capacitive equipment is simulated.Besides, the work flow of conformance testing and analysis results of protocol data unit are given,thus the validity and feasibility of the proposed method are verified.