Estimation of Steady-State Power System Model Parameters

The problem of estimating the network and other parameters of a power system using on-line telemetry data is considered. It is demonstrated that parameter inaccuracies can cause important limitations on on-line state estimation. This can be corrected by processing collected on-line data in an off-line mode to estimate inaccurate parameters. A recursive filtering-type algorithm is derived for this purpose. Simulation results indicate the feasibility of parameter estimation and the effectiveness of the derived algorithm.