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Fast power system voltage prediction using knowledge-based approach and on-line box data creation

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1 Author(s)
C. S. Chang ; Dept. of Electr. Eng., Hong Kong Polytech., Kowloon, Hong Kong

The author presents an algorithm for fast power system contingency analysis using pattern recognition. The pattern space is clustered into data boxes for each of search and flexibility of programming. The addressable memory structure of the pattern space decouples the voltage prediction problem into subproblems for one busbar and one contingency at a time. To reduce the working memory, the algorithm learns from the short-term load trend and selects only a few data boxes for on-line processing. Further computational savings and improvements in accuracy are achieved by adopting an innovative wafer data box structure that also facilitates subsequent refinement by additions/deletions of patterns acquired from real-time operational experience.<>

Published in:

IEE Proceedings C - Generation, Transmission and Distribution  (Volume:136 ,  Issue: 2 )