Fuzzy modelling of power system optimal load flow

Author

Miranda, V. ; Saraiva, J.T.

Author_Institution

Fac. de Eigenharia, Porto Univ., Portugal

fYear

1991

fDate

7-10 May 1991

Firstpage

386

Lastpage

392

Abstract

A fuzzy model for power system operation is presented. Uncertainties in loads and generations are modeled as fuzzy numbers. System behavior under known (while uncertain) injections is dealt with by a DC fuzzy power flow model. System optimal (while uncertain) operation is calculated with linear programming procedures in which the problem nature and structure allow some efficient techniques such as Dantzig-Wolfe decomposition and dual simplex to be used. Among the results, one obtains a fuzzy cost value for system operation and possibility distributions for branch power flows and power generations. Some risk analysis is possible, as system robustness and exposure indices can be derived and hedging policies can be investigated

Keywords

economics; fuzzy logic; linear programming; load flow; power system analysis computing; DC; Dantzig-Wolfe decomposition; dual simplex; exposure; fuzzy cost value; fuzzy model; generations; hedging policies; linear programming; loads; optimal load flow; power system analysis computing; risk analysis; robustness; uncertainty; Fuzzy logic; Fuzzy set theory; Fuzzy systems; Linear programming; Load flow; Power generation; Power generation economics; Power system modeling; Robustness; Uncertainty;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Industry Computer Application Conference, 1991. Conference Proceedings

Conference_Location

Baltimore, MD

Print_ISBN

0-87942-620-9

Type

conf

DOI

10.1109/PICA.1991.160606

Filename

160606