Impact of transformer correlations in state estimation using the unscented transformation

Colaboradores:: Prof Gustavo Valverde Mora, PhD.
Autores:: Eduardo Caro and Gustavo Valverde
Revista:: IEEE Transactions on Power Systems
Editor:: IEEE
URL:: https://ieeexplore.ieee.org/abstract/document/6594917/

Resumen:

This paper addresses the power system state estimation problem considering the correlations among instrument transformer signals. The correlations among processed measurements are estimated using the Unscented Transformation given the correlation and basic statistical information of internal measurements. In addition, the paper analyzes the impact of these correlations on the estimated states using the IEEE 118-bus test system under various operating conditions and measurement configurations.