基于RTDS的微机保护实时闭环数字仿真系统  

A real-time closed-loop digital simulation system for computer protections based on RTDS

作　　者：周巍[1] 张沛超[1] 杨星星 

机构地区：[1]上海交通大学电子信息与电气工程学院,上海200240 [2]苏州电力公司,江苏苏州215005

出　　处：《电力系统保护与控制》2010年第16期127-131,共5页Power System Protection and Control

摘　　要：传统仿真方式下建立的保护模型通常是离线、开环的,无法满足对微机保护实时交互测试与研究的要求。分析了微机保护实时闭环数字仿真系统的意义,说明其可以作为研究平台、事故分析平台、试验测试平台以及教学培训平台。提出了微机保护仿真系统的两种典型应用方式并分析了其优缺点。根据IEC 61850标准中对保护功能的划分方法,开发了丰富的保护实时仿真组件;根据IEC 61131-3标准,以功能方框图方式构成保护系统;将上述'软保护'系统嵌入到一次系统仿真模型中,从而构成微机保护实时闭环数字仿真系统。在RTDS上的实际运行结果表明,'软保护'系统可在各种故障情况下实时、闭环、正确动作。Traditional simulation models for computer protections are generally off-line and open-loop,so they fail to meet the need of real time testing as well as research for relay protection.This paper mainly analyzes the significance of the research for real-time closed-loop digital simulation system,indicating that this system can serve as a platform for research,fault analysis,experiment testing as well as education.It illustrates two typical application scenarios of the simulation system and discusses their strengths as well as limitations.According to the classification of protection functions by IEC61850 standard,the paper develops abundant real-time simulation components for protection.Finally,a functional-block diagram protection system based on IEC 61131-3 is developed and embedded in the RTDS,which forms a real-time closed-loop digital simulation system for computer protections.The ＂soft protection system＂ has been fully tested,which demonstrates its real time,closed-loop and correct operation based on RTDS.

关 键 词：微机保护 RTDS 仿真系统 IEC61850 闭环测试 

分 类 号：TM77[电气工程—电力系统及自动化] TM743