Journal ArticleDOI
Power System Static-State Estimation, Part II: Approximate Model
Fred C. Schweppe,Douglas B. Rom +1 more
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TLDR
An approximate mathematical model related to the dc load-flow model yields noniterative-state estimation equations, simplified prediction of effects of network and generation-load pattern changes on network flow, and simplified detection and identification of modeling errors.Abstract:
The static state of an electric power system is defined as the vector of the voltage magnitudes and angles at all network buses. The static-state estimator is a data-processing algorithm for converting redundant meter readings and other available information into an estimate of the static-state vector. Discussions center on an approximate mathematical model (related to the dc load-flow model). This model yields noniterative-state estimation equations, simplified prediction of effects of network and generation-load pattern changes on network flow, and simplified detection and identification of modeling errors. Results of some initial computer studies on the real power-voltage angle portion of the approximate model are discussed.read more
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Journal ArticleDOI
Power System Static-State Estimation, Part I: Exact Model
Fred C. Schweppe,J. Wildes +1 more
TL;DR: Discussions center on the general nature of the problem, mathematical modeling, an interative technique for calculating the state estimate, and concepts underlying the detection and identification of modeling errors.
Journal ArticleDOI
Bad data analysis for power system state estimation
TL;DR: In this article, the state estimation problem in electric power systems consists of four basic operations: hypothesize structure; estimate; detect; identify, which is addressed with respect to the bad data and structural error problem.
Journal ArticleDOI
Power System Dynamic State Estimation: Motivations, Definitions, Methodologies, and Future Work
Junbo Zhao,Antonio Gomez-Exposito,Marcos Netto,Lamine Mili,Ali Abur,Vladimir Terzija,Innocent Kamwa,Bikash C. Pal,Abhinav Kumar Singh,Junjian Qi,Zhenyu Huang,A. P. Sakis Meliopoulos +11 more
TL;DR: A unified framework is proposed to clarify the important concepts related to DSE, forecasting-aided state estimation, trackingstate estimation, and static state estimation and provide future research needs and directions for the power engineering community.
Journal ArticleDOI
Power System Observability: A Practical Algorithm Using Network Topology
TL;DR: In this paper, a power system is observable if the measurements made on it allow determination of bus voltage magnitude and angle at every bus of the network, and the theoretical basis for an algorithm for determining observability is presented.
Journal ArticleDOI
A Dynamic Estimator for Tracking the State of a Power System
Atif S. Debs,Robert E. Larson +1 more
TL;DR: In this paper, the problem of real-time estimation of the state of a power system is treated from the point of view of the theory of least-squares estimation (Kalman-Bucy filtering).