Authors : M. Ramu, L. Ravi Srinivas and S. Tara Kalyani
Abstract: This study proposes a new methodology which is dependent on Variable Scaling Hybrid Differential Evolution (VSHDE) combined with Lagrangian Relaxation (LR) to solve the large scale Unit Commitment Problem (UCP). The VSHDE method holds the properties of HDE method, superseding the disadvantage caused by fixed and random scaling factors used in the HDE method, VSHDE additionally adopts, the concept of the variable scaling factor which is dependent on the 1/5 success rule of Evolution Strategies (ESs). In this study, VSHDE algorithm is used to tune the Lagrangian multipliers more effectively. The UC is decided by the LR method. The proposed method is tested on generating units ranging from ten units to hundred units and the results attained are compared with other methods to validate its viability.
M. Ramu, L. Ravi Srinivas and S. Tara Kalyani, 2018. A New Approach Based on Variable Scaling Hybrid Differential Evolution for Unit Commitment Problem. Journal of Engineering and Applied Sciences, 13: 3314-3320.