سال انتشار: ۱۳۹۱

محل انتشار: نهمین کنگره بین المللی مهندسی عمران

تعداد صفحات: ۸

نویسنده(ها):

Banafsheh Norouzi – The Member of Scince Group of Gorgani lamei private high training institution
Moosa Taimoury Yansary – MSc Shahid Bahonar University of Kerman
Hamid Bashiri Atrabi – MSc Shahid Bahonar University of Kerman

چکیده:

One of the greatest drawbacks of GAs is that they require a high number of function evaluations to achieve convergence. Each function evaluation entails a full extended-period simulation of the system, which is a computationally expensive process. The net result is that GA optimization is time consuming. For a large distribution system a GA optimization run can take up to a few days on a modern personal computer. In the study efficiency of GA operational optimization was improved through a hybrid method which combines the GA method with a hillclimber search strategy. Hill climber strategies complement GAs by being efficient in finding a local optimum two hillclinber strategies, the Hooke and Jeeves and Fibonacci methods, were investigated. The hybrid method proved to be superior to the pure GA in finding a good solution quickly, both when applied to a test problem and to a large existing water distribution system