基于改进等效电流量测变换的状态估计算法  

A State Estimation Method Based on Improved Equivalent Current Measurement Transformation

作　　者：孟德军[1,2] 樊汝森 杨小立 王勇[1] 

机构地区：[1]上海电力学院,上海200090 [2]国网浙江省电力公司检修分公司,浙江杭州311232 [3]国网上海市电力公司青浦供电公司,上海200122

出　　处：《上海电力学院学报》2017年第6期535-539,共5页Journal of Shanghai University of Electric Power

基　　金：上海市科学技术委员会地方能力建设项目(15110500700);上海科学技术委员会中小企业创新基金(1601H1E2600);上海市浦江人才计划资助(16PJ1433100);上海自然科学基金(16ZR1436300)

摘　　要：介绍了基于等效电流量测变换的状态估计算法,并在此基础上提出了一种改进算法.应用抗差估计的理论构造了一组权函数,在每次迭代的过程中对权重不断修改,从而达到提高估计精度的目的.Matlab仿真实验结果表明,估计精度得到了提高.A state estimation method based on equivalent current measurement transformation is introduced. On this basis an improved method is proposed. A set of weight function is constructed by using robust estimation theory. In each iterative process the weight is continuously changing to improve estimation accuracy. Results of M atlab simulation experiment showthat the estimation accuracy is improved.

关 键 词：状态估计 等效电流量测变换 抗差估计 

分 类 号：TM744[电气工程—电力系统及自动化]