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A Study on the Effect of Generation Shedding to Total Transfer Capability by Means of Transient Stability Constrained Optimal Power Flow

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9 Author(s)
Hakim, L. ; Grad. Sch. of Eng., Hiroshima Univ., Higashi-Hiroshima ; Kubokawa, J. ; Yue Yuan ; Mitani, T.
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In nowadays deregulated market, total transfer capability (TTC) calculation, which is the basis for evaluating available transfer capability (ATC), has been becoming more significant. During the last decade, transient stability constraints have been included in the optimal power flow approach to maximize TTC. However, no previous work on investigating the effect of generation shedding action to TTC has been reported. Therefore, in this paper, we propose a TTC maximization by means of transient stability constrained optimal power flow considering the generation shedding action. Proper selection of the generator to shed is based on its Lagrange multiplier value of transient stability constraint. Our simulation results show how TTC can be increased to anticipate possible generation shedding.

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Power Systems, IEEE Transactions on  (Volume:24 ,  Issue: 1 )