An Elastic Steady State Security Region with Stochastic and Fuzzy Loads

Load uncertainty in power system is regarded as stochastic variable or fuzzy number in this paper. The concept of possibility-probability consistency is used to transform fuzzy number to stochastic variable. And the concept of confidence nitervals is used to calculate steadystate security regions under various load confidence levels. So,steady-state security regions are elastic. At last,a compunctional result about IEEE-30 system is given.

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Clc Number:

TM732