Risk-based coordination of generation rescheduling and load shedding for transient stability enhancement

Z. Wang, X. Song, H. Xin, D. Gan, Kitpo Wong

    Research output: Contribution to journalArticlepeer-review

    38 Citations (Scopus)


    This paper presents a risk-based method for coordinating generation rescheduling and load shedding to enhance overall transient stability of power systems. Firstly, a generation rescheduling model that can consider the risk-based dynamic security constraint is proposed, in which some acceptable risk level should be respected and can be adjusted by a risk coordination parameter. For the purpose of considering the potential corrective control costs at the stage of preventive control design, a bi-level coordination optimization model is developed, in which on the upper level the total coordination cost is minimized by the risk coordination parameter adjustment; and on the lower level the generation rescheduling and the load shedding are performed successively to enhance the risk-based dynamic security and the transient stability performance, respectively. Finally, a hybrid method that can combine the Golden Section Search and the Successive Linear Programming is developed to solve the bi-level optimization model. The effectiveness of the proposed method is demonstrated by using the New England test system and a real power system. © 2013 IEEE.
    Original languageEnglish
    Pages (from-to)4674-4682
    JournalIEEE Transactions on Power Systems
    Issue number4
    Publication statusPublished - 2013


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