A Method of Online Topology Adjustment Decision Support for Short-Circuit Current Limitation

Abstract:

With the growing scale of power systems in China, short-circuit current levels of power systems have been significantly increasing. Appropriate grid topology adjustment is an effective method for short-circuit current limitation. The specific measures include transmission line outage, transformer outage, etc. In this paper, a practical optimization algorithm of grid topology adjustment is put forward. A weighted comprehensive sensitivity index is adopted to speed up the procedure of adjustment strategy searching. The detailed calculation method of this index for different measure types is presented. And a security & economy assessment is implemented to ensure the feasibility of potential adjustment strategies. Moreover, the framework of an online topology adjustment decision support software based on this optimization algorithm is proposed. The effectiveness of the presented method is demonstrated by the test on a large-scale power system.

• Periodical: Advanced Materials Research (Volumes 805-806)
• Pages: 756-762
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.805-806.756
• Online since: September 2013
• Authors: Bi Qiang Tang*, Li Wen Wang, Yi Jun Yu, Fei Shi, Shu Hai Feng
• Keywords: Online Decision Support, Power System, Short-Circuit Current Limitation, Topology Adjustment

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