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Title: Qualitative methods to solve qualitative problems in power system state estimation

Abstract

A combinatorial approach to deal with qualitative problems related to power system state estimation is proposed. The discussed techniques share the same theoretical background which also underlies a previously proposed method for observability analysis. The combinatorial framework is presented and further exploited to devise a fast method for identification of single critical measurements. This method is then extended to allow the determination of critical measurement sets. The interest in investigating these questions lies in the fact that, when contaminated by gross errors, critical measurements are undetectable, whereas measurements in critical sets are unidentifiable. The performance of the proposed combinatorial methods is appraised by means of several tests, using the IEEE-14 and 30 bus systems and two realistic systems of Brazilian utilities.

Authors:
;  [1];  [2]
  1. Dept. of Electrical Engineering, Universidade Federal de Santa Catarina, Florianopolic, SC (BR)
  2. Dept. of Computer Science, Universidade de Sao Paulo, Sao Paulo (BR)
Publication Date:
OSTI Identifier:
6386738
Resource Type:
Journal Article
Journal Name:
IEEE Transactions on Power Systems (Institute of Electrical and Electronics Engineers); (USA)
Additional Journal Information:
Journal Volume: 5:3; Journal ID: ISSN 0885-8950
Country of Publication:
United States
Language:
English
Subject:
24 POWER TRANSMISSION AND DISTRIBUTION; POWER SYSTEMS; LOAD ANALYSIS; CALCULATION METHODS; ENERGY SYSTEMS; 240100* - Power Systems- (1990-)

Citation Formats

Costa, A S, Pizza, T S, and Mandel, A. Qualitative methods to solve qualitative problems in power system state estimation. United States: N. p., 1990. Web. doi:10.1109/59.65924.
Costa, A S, Pizza, T S, & Mandel, A. Qualitative methods to solve qualitative problems in power system state estimation. United States. https://doi.org/10.1109/59.65924
Costa, A S, Pizza, T S, and Mandel, A. 1990. "Qualitative methods to solve qualitative problems in power system state estimation". United States. https://doi.org/10.1109/59.65924.
@article{osti_6386738,
title = {Qualitative methods to solve qualitative problems in power system state estimation},
author = {Costa, A S and Pizza, T S and Mandel, A},
abstractNote = {A combinatorial approach to deal with qualitative problems related to power system state estimation is proposed. The discussed techniques share the same theoretical background which also underlies a previously proposed method for observability analysis. The combinatorial framework is presented and further exploited to devise a fast method for identification of single critical measurements. This method is then extended to allow the determination of critical measurement sets. The interest in investigating these questions lies in the fact that, when contaminated by gross errors, critical measurements are undetectable, whereas measurements in critical sets are unidentifiable. The performance of the proposed combinatorial methods is appraised by means of several tests, using the IEEE-14 and 30 bus systems and two realistic systems of Brazilian utilities.},
doi = {10.1109/59.65924},
url = {https://www.osti.gov/biblio/6386738}, journal = {IEEE Transactions on Power Systems (Institute of Electrical and Electronics Engineers); (USA)},
issn = {0885-8950},
number = ,
volume = 5:3,
place = {United States},
year = {Wed Aug 01 00:00:00 EDT 1990},
month = {Wed Aug 01 00:00:00 EDT 1990}
}