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《Journal of Hydroelectric Engineering》 2012-01
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Fuzzy optimization of hydraulic project scheme based on improved grey relation analysis

LIU Feng,WEI Guanghui(School of water Resources & Civil Engineering,Xinjiang Agricultural University,Urumqi 830052)  
Aiming at fuzzy relations and correlations dominant among various technical evaluation indexes of hydraulic project design scheme,this paper studies decision-making of system design,and puts forth a method of improved grey relation fuzzy decision-making.This method considers preferred subjection degree and grey incidence,and seeks an optimal design scheme from a whole perspective of complex system.In the method,raw data are non-dimensionalized and normalized by theory of fuzzy math subjection function,and a set of technical index weight and a coefficient matrix of grey incidence are recorded to avoid loss of index information in the evaluation.For hydraulic project design,the optimization method can be implemented through a comprehensive evaluation model.A case study of a hydraulic project is used to verify the model,and the results show that the new method effectively reduces subjective disturbances to the evaluation so as to obtain a more comprehensive and more objective decision-making of design scheme.
【CateGory Index】: TV222
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