Title :
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
fDate :
5/1/1995 12:00:00 AM
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;
Journal_Title :
Power Systems, IEEE Transactions on
