Bad Data Suppression in Power System State Estimation with a Variable Quadratic-Constant Criterion
- 1 July 1985
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Power Apparatus and Systems
- Vol. PAS-104 (4) , 857-863
- https://doi.org/10.1109/tpas.1985.319086
Abstract
This paper reports numerical results on tests of a new bad data suppression strategy for power system state estimation. A transformation-decoupled state estimator [1] is used in conjunction with a variable quadratic-constant criterion whose break even point is designed to track the upper bound of normalized residues of good measurements. Numerical simulations with a 6-bus test system and the IEEE 30-bus system show that the new bad data suppression strategy, is very effective for different systems under many uncertainties in the sizes and numbers of bad data with a moderate measurement redundancy.Keywords
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