Title :
Modeling transformer taps in block-based state estimation
Author :
Castrejón, Francisco González ; Expósito, Antonio Gómez
Author_Institution :
Dept. of Electr. Eng., Seville Univ., Spain
Abstract :
This paper deals with the problem of incorporating transformer tap estimation into modern block-based state estimators. Advantage is taken of the symmetry between voltages and taps in power flow and injection equations, in order to simplify the computation of Jacobian elements. Performance of the proposed technique is illustrated in small examples and real-life computation times are provided
Keywords :
Jacobian matrices; control system analysis; energy management systems; load flow control; power system control; power system planning; power system state estimation; power transformers; Jacobian elements computation; block-based state estimation; injection equations; power flow equations; power system control; power system planning; transformer taps modelling; voltage-tap symmetry; Arithmetic; Equations; Fluid flow measurement; Jacobian matrices; Load flow; Power system control; Power system modeling; Power system planning; Power system simulation; State estimation;
Conference_Titel :
Power Tech Proceedings, 2001 IEEE Porto
Conference_Location :
Porto
Print_ISBN :
0-7803-7139-9
DOI :
10.1109/PTC.2001.964936
