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Voltage / Reactive Power Control Optimization with Economy and Security using Tabu Search

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3 Author(s)
Nakachi, Y. ; Nagoya Inst. of Technol., Nagoya ; Kato, Atsushi ; Ukai, H.

Following the deregulation of electric power market, the several power transactions and the distributed generation are on the rise increase year by year in Japan. If this trend continues, there is a likelihood that the power flow will be more complex coupled with a greater degree of uncertainty. Therefore it may be difficult for voltage/reactive power control (VQC) to maintain the adequate voltages for the secure operation of the power system. In addition, there is an increasing need to optimize the power system operation in view of the competitive power market. Hence, in this paper, the optimization problem is formulated to solve the VQC strategy satisfying the trade-off problem concerning security and economy using Tabu Search (TS). TS, a meta-heuristic approach, is suitable for the optimization problem of VQC. In particular, the efficient method to search the neighborhood solution on Tabu search algorithm is proposed. It is confirmed by performing several numerical simulations using IEEE 14 bus system that the proposed scheme is able to ensure the security and to find the useful sub-optimal solution efficiently.

Published in:

Intelligent Control, 2007. ISIC 2007. IEEE 22nd International Symposium on

Date of Conference:

1-3 Oct. 2007