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Real-time implementation of optimal reactive power flow

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2 Author(s)
Sharif, S.S. ; Dept. of Electr. & Comput. Eng., New Brunswick Univ., Fredericton, NB, Canada ; Taylor, J.H.

The application of optimal reactive power flow (ORPF) to the New Brunswick (NB) power system is presented. The potential benefits and the real-time implementation problems of ORPF are discussed. Some important issues on real-time implementation of ORPF such as frequency of running, the number of activated control variables, and the order of adjustment of different controls are discussed. The application of ORPF on the NE Power network has shown two major benefits: 1) an improvement in the voltage profile and voltage stability, and 2) a savings in active power loss. The improvement in voltage profile can cause fewer violations and a more stable system from the voltage point of view, A reduction in active power loss gained from ORPF can save a significant amount of money. The total ideal saving for the year 1995 predicted in the study was in excess of $900,000, however, only ten to thirty percent of this amount is realistically obtainable due to operational and other constraints. These savings can be gained simultaneously with the improvement of the voltage profiles

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American Control Conference, 1999. Proceedings of the 1999  (Volume:6 )

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