基于改进残差的显著误差检测方法  

Gross Error Detection Based on Modified Error

作　　者：沈凯[1] 吴胜昔[1] 彭竹[1] 顾幸生[1] 

机构地区：[1]华东理工大学化工过程先进控制和优化技术教育部重点实验室,上海200237

出　　处：《华东理工大学学报（自然科学版）》2014年第6期730-734,共5页Journal of East China University of Science and Technology

基　　金：国家自然科学基金(61174040);上海市科委基础研究项目(12JC1403400);上海市重点学科建设项目(B504)

摘　　要：运用投影矩阵法提出了一种表征测量误差程度的不可检测误差系数(UI)。UI值越高,说明测量误差与实际误差之间的差值越大,具有较高UI值的测量值容易出现显著误差漏报的现象。本文采用UI值对所有测量值误差进行修正,并将改进后的误差应用到显著误差检测中,以提高显著误差检测的准确度。仿真结果表明,基于改进残差的显著误差的检测方法能够提高显著误差的检测精度。In this paper, an undetectability index （UI） for measurement error was proposed by using the projection matrix. If the UI value of the measurement error is higher, there may be larger difference between the measurement error and actual error, which means the omission of gross error may easily happen for the measurement with higher UI value. Hence, this paper utilized the UI value to modify all the measurements errors,which would further be adopted in the detection of gross error so as to improve the accuracy of the gross error gross error detection can attain detection. The simulation results on power system show that the modified higher accuracy of the gross error detection

关 键 词：投影矩阵 误差系数 显著误差 电力系统 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]