Title :
The impact of modeling short circuit branches in state estimation
Author_Institution :
DSEE, FEE, Campinas, Brazil
fDate :
2/1/1993 12:00:00 AM
Abstract :
The authors discuss the modeling of zero impedance branches (short circuits) in power system state estimation. The concept of state variable in power system state estimation is generalized, and an extended version of the numerical observability method is proposed to cope with complex situations involving multiple short circuit branches, as they occur in some station arrangements. The impact of short circuit exact representation on bad data identification is also discussed
Keywords :
observability; power systems; short-circuit currents; state estimation; bad data identification; modeling; numerical observability method; power system; short circuit branches; state estimation; zero impedance branches; Algorithm design and analysis; Circuits; Covariance matrix; Data analysis; Equations; Impedance measurement; Observability; Power system analysis computing; Power system modeling; State estimation;
Journal_Title :
Power Systems, IEEE Transactions on
