A hybrid tool to assist the operator in reactive power/voltage control and optimization

Author

Ramos, J. L Martínez ; Exposito, A.G. ; Cerezo, J.C. ; Ruiz, E.M. ; Salinas, F.C.

Author_Institution

Dept. of Electr. Eng., Seville Univ., Spain

Volume

10

Issue

2

fYear

1995

fDate

5/1/1995 12:00:00 AM

Firstpage

760

Lastpage

768

Abstract

This paper presents an integral tool to assist the operator in reactive power dispatching for voltage profile improvement and power loss minimization. Advantage is taken of both numerical (conventional) and heuristic (knowledge-based) methods in order to find a practical number of control variables (smooth and/or discrete) which can be effectively used to solve voltage violations or to reduce power losses. Efficiency is measured according to sensitivity of voltages (or power losses) to control variables, current voltage profile and reserve margins. Implementation details of the system, integrated in a control center, as well as some practical results are also presented and discussed

Keywords

knowledge based systems; load dispatching; losses; optimisation; power system control; reactive power control; voltage control; control variables; current voltage profile; efficiency measurement; generators; heuristic methods; knowledge-based methods; numerical method; optimization; power loss minimization; pumped storage generating units; reactances; reactive power control; reserve margins; shunt capacitors; transformer taps; voltage control; voltage profile improvement; voltage violations; Control systems; Dispatching; Expert systems; Knowledge based systems; Power engineering and energy; Power system planning; Prototypes; Reactive power; Reactive power control; Voltage control;

fLanguage

English

Journal_Title

Power Systems, IEEE Transactions on

Publisher

ieee

ISSN

0885-8950

Type

jour

DOI

10.1109/59.387914

Filename

387914