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Real-time implementation of optimal reactive power flow

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5 Author(s)
Sharif, S.S. ; Dept. of Electr. & Comput. Eng., New Brunswick Univ., Fredericton, NB, Canada ; Taylor, J.H. ; Hill, Eugene F. ; Scott, B.
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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 of real-time implementation on 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 NB power network has shown two major benefits: (1) an improvement in the voltage profile and voltage stability, and (2) a saving in active power loss. The improvement in the 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 savings for the year 1997 predicted in the study was in excess of $900000, however, only 10 to 30% 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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Power Engineering Review, IEEE  (Volume:20 ,  Issue: 8 )