Abstract

High level wind power penetration has significantly affected the dynamic behavior of power systems. Due to its uncertainty and intermittency, conventional generators need to compensate wind power variation constantly. Based on trajectory sensitivity and Extended Equal Area Criterion (EEAC) method, this paper proposes a new approach to optimize power dispatch with wind power variation while maintaining the transient stability of the system. With the least power rescheduling, the system can be transient stable even though wind power output changes significantly. The proposed method is validated on the New-England 10-machine 39-bus system by using commercial simulation software TSAT. The results show good performance on the robustness, effectiveness and computational efficiency of the approach.

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