文献类型：期刊文献

中文题名：变电站IED通讯性能分析及评估模型建立

英文题名：Substation IED Communication Performance Analysis and Evaluation Model Building

作者：顾鹏尧[1];梁俊[2]

机构：[1]绍兴文理学院上虞分院;[2]上海可鲁电气技术有限公司

年份：2013

期号：6

起止页码：27

中文期刊名：自动化技术与应用

外文期刊名：Techniques of Automation and Applications

收录：CSTPCD

语种：中文

中文关键词：变电站;IED;通信性能;评估指标;评估模型

外文关键词：substation; IED; communication performance; evaluation factor; evaluation model

中文摘要：随着测控技术的电子化和信息化的发展,电力系统通信网络的性能直接关系着变电站的自动化水平。IED是变电站综合自动化系统的关键二次设备,也是支持变电站向数字化进程迈进的一个重要因素,这就需要对影响IED通讯性能的指标进行提取与分析,评价其通讯状态。本文分析了影响IED通讯的三大性能指标,流量、延时和误码率,并分析了影响指标的原因。最后针对性能指标分析建立了三种评估模型,即基于BP神经网络模型的综合评估法、基于多元线性回归模型的评估法和基于ARMA模型的评估法,并使用这三种评估模型对IED的通讯性能分别进行了评估,同时使用线性最小均方误差预测方法对网络流量进行了预测,对超越阈值的异常流量产生报警。这三种模型均能有效评估IED的健康通讯状态。

外文摘要：Along with the development of measurement and control technology of electronic and information technology, the performance of power system communication networks directly related to the level of substation automation. IED is the key secondary equipment in substation and also an important factor in support of the substation to the digital process forward. So it is necessary to extract and analyze indicators that affect IED communication, and evaluate communication status. First, this paper analyzes the 3 major factors： traffic, time delay and bit error rate, and how these factors impact network performance; Second, 3 evaluation models are proposed separately. The network performance and normal behavior of traffic are stabilized and the coefficients of the model are estimated. And then the traffic by the way of ＇minimal linear square error＇ is predicted, and the probability of the predicted value exceeding the threshold is calculated. These models can evaluate IED health communication status effectively.