电力系统自动化2012，Vol.36Issue(23)：71-77,7.
变压器分接头位置的改进递推贝叶斯估计
An Improved Recursive Bayesian Approach for Estimating Transformer Tap Position
摘要
Abstract
An improved recursive Bayesian estimation approach with high efficiency and accuracy is proposed for the estimation of transformer tap positions.Transformers with suspect tap positions are identified firstly,then state estimation residuals for each tap position of the suspicious transformer are calculated.The posterior probability of all tap positions can be obtained with recursive Bayesian estimation approach.Furthermore,the computational efficiency are improved from the following aspects:a linear correction method and a prediction-correction method are proposed to estimate the residuals effectively;a heuristic method is given to reduce the set including the right tap position during the recursive process;and a stopping criterion for the recursive process is presented to avoid unnecessary estimation time.Simulations are carried on the IEEE 39-bus system to illustrate that the approach is reliable and with high efficiency,and thus has the good prospect of online applications.关键词
电力系统分析/状态估计/变压器分接头/位置估计/递推贝叶斯估计Key words
power system analysis/state estimation/transformer tap/position estimation/recursive Bay esianestimation分类
信息技术与安全科学引用本文复制引用
陈艳波,刘锋,何光宇,黄良毅,顾志东..变压器分接头位置的改进递推贝叶斯估计[J].电力系统自动化,2012,36(23):71-77,7.基金项目
国家自然科学基金资助项目 （）
国家高技术研究发展计划（863计划）资助项目 （）
