| Title |
An Operation Method of Many UPFC's for Maintaining the Optimal Voltage Profile |
| Authors |
김태현(Kim, Tae-Hyun) ; 문승일(Moon, Seung-Il) ; 박종근(Park, Jong-Keun) |
| Keywords |
FACTS ; UPFC ; Decoupled UPFC Model ; Optimal Voltage Profile |
| Abstract |
A method to compute the reactive powers of the added buses by the decoupled UPFC model for the optimal voltage profile is presented, by which the voltage magnitudes of PQ buses can get closer to the reference value(usually one p.u.). The performance index for assessing how much the voltage magnitude is closer to the reference value is defined as the squared sum of the present voltage minus the reference voltage multiplied by the weighting number associated with the relative importance of the buses. Numerical example in a 10-unit 39-bus power system with 2 UPFC's shows that the performance index can be very much reduced by operating many UPFC's with the reactive powers for the optimal voltage profile proposed in this paper. |