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Published in:
2010 | OriginalPaper | Chapter
A Systems Approach for the Optimal Retrofitting of Utility Networks Under Demand and Market Uncertainties
Authors : O. Adarijo-Akindele, A. Yang, F. Cecelja, A. C. Kokossis
Published in: Handbook of Power Systems I
Publisher: Springer Berlin Heidelberg
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This paper presents a systematic optimization approach to the retrofitting of utility systems whose operation faces uncertainties in the steam demand and the fuel and power prices. The optimization determines retrofit configurations to minimize an (expected) annualised total cost, using a stochastic programming approach deployed at two levels. The upper level optimizes structural modifications, while the second level optimizes the operation of the network. Uncertainties, modelled by distribution functions, link the two stages as the lower layer produces statistical information used, in aggregate form, by the upper level. The approach uses a case study to demonstrate its potential and value, producing evidence that uncertainties are important to consider early and that the two-level optimization effectively screens networks capable to afford unexpected changes in the parameters.