Fh. Magnago et A. Abur, A unified approach to robust meter placement against loss of measurements and branch outages, IEEE POW SY, 15(3), 2000, pp. 945-949
This paper presents a systematic procedure by which measurement systems can
be optimally upgraded. The proposed procedure yields a measurement configu
ration that can withstand any single branch outage or loss of single measur
ement, without losing network observability: It is a numerical method based
on the measurement Jacobian and sparse triangular factorization, making it
s implementation easy in existing state estimators, It can be used off-line
in planning and meter placement studies or it can be implemented as part o
f the on-line observability analysis function. Details of the procedure are
presented using numerical examples.