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A stochastic approach to small disturbance stability analysis

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3 Author(s)
C. O. Nwankpa ; Drexel Univ., Philadelphia, PA, USA ; S. M. Shahidehpour ; Z. Schuss

A systematic approach to the construction of stochastic models of electric power systems for small disturbance stability analysis is presented. In this study, the cumulative effects of small-magnitude random fluctuations of electrical loads are considered as sources of eventual loss of stability, and a security measure is derived to determine the small-disturbance stability limits of the stochastic system. The electric power system models were tested on a 30-bus power system and compared according to the relative effects of load fluctuations on the proposed security measure

Published in:

IEEE Transactions on Power Systems  (Volume:7 ,  Issue: 4 )