用增测法解决状态估计中的病态问题

Using the QR-Metering Reinforcement Method to Solve the Ill-Conditioning Problems in Power System State Estimation

为了解决电力系统 WLS 法状态估计中的病态问题,本文对 L—M 增测方法进行分析和讨论,并根据数值相关性理论,提出了一种新的方法——QR-增测法,这种方法对于解决电力系统状态估计中的病态问题有较好的效果。

In order to solve the problems of ill-conditioning in power system state estimation,this thesis presents detailed analysis and diseassion of the L-M metering reinforcement method,and a new method,which is called QR-met- ering reinforcement method,is proposed based on the numerical correlativity theory.This new method has better,effect on the solution of,the ill-conditi- oning problems in power system state estimation.