Forecasting-Aided State Estimation-Part I: Panorama

The art of estimating future values of a random process, based upon previously observed or estimated values, is usually known as a priori estimation, prediction, or forecasting. Power system state estimation process can be enhanced if state/measurement forecasts are incorporated into it. Important r...

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Published inIEEE transactions on power systems Vol. 24; no. 4; pp. 1667 - 1677
Main Authors Brown Do Coutto Filho, M., de Souza, J.C.S.
Format Journal Article
LanguageEnglish
Published New York IEEE 01.11.2009
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
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Abstract The art of estimating future values of a random process, based upon previously observed or estimated values, is usually known as a priori estimation, prediction, or forecasting. Power system state estimation process can be enhanced if state/measurement forecasts are incorporated into it. Important research efforts have been made in this direction bringing a fresh perspective to the state estimation problem. This paper (Part I) presents a comprehensive survey of forecasting-aided state estimators. It gathers up-covering a period of three decades-research results on the main benefits achieved by state estimators with forecasting capability regarding: data redundancy, innovation analysis, observability, filtering, bad data, and network configuration and parameter error processing. Aspects of modeling, forecasting techniques, and computational effort are also addressed. The second of this two-paper series presents the results of the implementation of a forecasting-aided state estimator in the energy management system of the LIGHT Services of Electricity, a company which provides electric energy to Rio de Janeiro, Brazil.
AbstractList The art of estimating future values of a random process, based upon previously observed or estimated values, is usually known as a priori estimation, prediction, or forecasting. Power system state estimation process can be enhanced if state/measurement forecasts are incorporated into it. Important research efforts have been made in this direction bringing a fresh perspective to the state estimation problem. This paper (Part I) presents a comprehensive survey of forecasting-aided state estimators. It gathers up - covering a period of three decades - research results on the main benefits achieved by state estimators with forecasting capability regarding: data redundancy, innovation analysis, observability, filtering, bad data, and network configuration and parameter error processing. Aspects of modeling, forecasting techniques, and computational effort are also addressed. The second of this two-paper series presents the results of the implementation of a forecasting-aided state estimator in the energy management system of the LIGHT Services of Electricity, a company which provides electric energy to Rio de Janeiro, Brazil.
Author de Souza, J.C.S.
Brown Do Coutto Filho, M.
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Snippet The art of estimating future values of a random process, based upon previously observed or estimated values, is usually known as a priori estimation,...
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SubjectTerms Data analysis
Filtering
Observability
Power measurement
Power system measurements
Random processes
Redundancy
State estimation
state forecasting
Technological innovation
Title Forecasting-Aided State Estimation-Part I: Panorama
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