Unlimited point algorithm for OPF problems

Author

Tognola, Giorgio ; Bacher, Rainer

Author_Institution

Swiss Federal Inst. of Technol., Zurich, Switzerland

Volume

14

Issue

3

fYear

1999

fDate

8/1/1999 12:00:00 AM

Firstpage

1046

Lastpage

1054

Abstract

A nonlinear optimal power flow (OFF) algorithm is presented which allows to solve the Karush-Kuhn-Tucker (KKT) optimality conditions using a pure Newton-Raphson solution procedure. The method is similar to interior point algorithms. However, due to a simple transformation, the variable space becomes unlimited (unlimited point) and variables do not need to be forced to stay within the feasible region during all OPF iterations as is the case for interior point algorithms. As a consequence, only a pure Newton-Raphson iterative process to algebraically transformed KKT conditions is applied. The algorithm has been successfully applied to various networks up to size 700 buses with the active power loss objective function

Keywords

Newton-Raphson method; control system analysis; control system synthesis; load flow control; nonlinear control systems; optimal control; power system control; Karush-Kuhn-Tucker optimality conditions; Newton-Raphson solution procedure; active power loss objective function; control design; feasible region; iterative process; nonlinear optimal power flow; unlimited point algorithm; variable space; Constraint theory; Equations; Iterative algorithms; Lagrangian functions; Load flow; Power engineering and energy; Power systems; Quadratic programming; Systems engineering and theory; Time factors;

fLanguage

English

Journal_Title

Power Systems, IEEE Transactions on

Publisher

ieee

ISSN

0885-8950

Type

jour

DOI

10.1109/59.780919

Filename

780919