Jianhui Li, En Lu, Ning Wang, Chong Wang, Yunhe Hou, and Haoming Liu
FCB units, generator rejection, post-separation control
This paper analyzes the influences of fast cut back (FCB) generating units on post-separation control actions in formed islands. Controlled separation, which divides an interconnected system into several islands, is considered as the last resort to prevent cascading failures caused by large disturbances. After system splitting, some controls, e.g., load shedding and generator rejection, should be implemented to maintain the stability of islands. Based on the characteristics of FCB units, which are different from the conventional thermal units, influences of FCB units on post-separation control actions are analyzed. A test system is used to demonstrate the advantages of FCB units on post-separation control actions in formed islands.
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