Improvements of Interval Bound Algorithm for Reactor Reloading Pattern Optimization and Their Verifications

Interval Bound Algorithm is a well performance algorithm to optimize reactor reloading pattern problem.In order to improve the performance of the algorithm further,this paper added "elitism strategy" to it.The numerical result showed that the improved algorithm became better than the basic algorithm in terms of both solution quality and convergence speed.Moreover,in order to solve multi-modal reloading pattern optimization problem,the multi-interval-model was added to the algorithm.The numerical result also illustrated that the re-improved algorithm was able to find multi-modal optimization solutions simultaneously without increasing of calculation load.With the two improvement measures,Interval Bound Algorithm has performed better in realistic application.