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This paper proposes a boundary analysis method for reliability and economic assessment in distribution systems. The main purpose is to deal with uncertainties of input data, especially when statistical information is unavailable or insufficient. The presented method uses interval numbers to enclose variability and incertitude in reliability and economic parameters, and provides the estimates on upper and lower bounds of reliability and economic indices. The proposed method has been applied to real-life distribution reinforcement projects. Case studies demonstrated effectiveness and efficiency of the method.
Date of Publication: May 2010