Title :
Improving transformer tap changer processing in distribution state estimators
Author :
Ruiz-García, O.M. ; Gómez-Expósito, A. ; de la Villa, Agustin ; Romero, E. ; Trebolle, D.
Abstract :
Union Fenosa Distribucion, a Spanish distribution utility, is developing a state estimator tool intended for off-line applications. Its main goal is to produce realistic base cases at the sub-transmission and distribution levels, allowing systematic network studies to be undertaken. From this experience, a detailed research work has been carried out regarding the best way of dealing with automatic tap changer settings, no matter if tap measurements are available or not. This paper reports preliminarily on the heuristic procedures developed for this purpose, showing by means of a case study the improved results provided by the state estimator.
Keywords :
distribution networks; on load tap changers; power system state estimation; Spanish distribution utility; Union Fenosa Distribucion; automatic transformer tap changer processing; distribution state estimators; distribution systems; heuristic procedures; inequality constraints; off-line applications; sub-transmission levels; systematic network; Companies; Information resources; Information retrieval; Iterative algorithms; Load flow; Load flow analysis; Redundancy; Software tools; State estimation; Voltage; distribution systems; inequality con-straints; state estimation; tap changers;
Conference_Titel :
Electrotechnical Conference, 2008. MELECON 2008. The 14th IEEE Mediterranean
Conference_Location :
Ajaccio
Print_ISBN :
978-1-4244-1632-5
Electronic_ISBN :
978-1-4244-1633-2
DOI :
10.1109/MELCON.2008.4618526
