Improved NSGAII with a New Distribution and its Application in Multi-Objective Reservoir Operation

Abstract:

Article Preview

Non-dominated sorting genetic algorithms II (NSGAII) has been widely used for multi- objective optimizations. To overcome its premature shortcoming, an improved NSGAII with a new distribution was proposed in this paper. Comparative to NSGAII, improved NSGAII uses an elitist control strategy to protect its lateral diversity among current non-dominated fronts. To implement elitist control strategy, a new distribution (called dogmatic distribution) was proposed. For ordinary multi-objective optimization problem (MOP), an ordinary exploration ability of improved NSGAII should be maintained by using a larger shape parameter r; while for larger-scale complex MOP, a larger exploration ability of improved NSGAII should be maintained by using a less shape parameter r. The application of improved NSGAII in multi-objective operation of Wohu reservoir shows that improved NSGAII has advantages over NSGAII to get better Pareto front especially for large-scale complex multi-objective reservoir operation problems.

Info:

Periodical:

Edited by:

Xuejun Zhou

Pages:

2734-2739

DOI:

10.4028/www.scientific.net/AMM.90-93.2734

Citation:

R. Yun and C. S. Yu, "Improved NSGAII with a New Distribution and its Application in Multi-Objective Reservoir Operation", Applied Mechanics and Materials, Vols. 90-93, pp. 2734-2739, 2011

Online since:

September 2011

Authors:

Export:

Price:

$35.00

In order to see related information, you need to Login.

In order to see related information, you need to Login.