Object-Oriented 3-Phase Distributed Dynamic State Estimator

This paper presents a suite of two distributed dynamic state estimators (QSE and DSE) that are performed at the substation level. The algorithm uses local GPS-synchronized and conventional non-synchronized measurements in the substation of interest for estimating the states of the substation as well as the states at the other ends of the transmission lines at the adjacent substations. The estimation algorithm provides the true dynamic (transient) states of the system. As such it provides the basic infrastructure for highly accurate real time dynamic monitoring and control at speeds that are not presently available. Numerical experiments on the NYPA Gilboa-Blenheim substation are presented in this paper for the purpose of evaluating the performance of the proposed algorithms. It is shown that the proposed algorithm is reliable and feasible for practical implementation.