Multiobjective fixed head hydrothermal scheduling using integrated predator-prey optimization and Powell search method

▸ A methodology that integrates predator-prey optimization (PPO) and Powell's search method is explored. ▸ The preys always try to escape from the predators, while predator's goal is to capture the prey. ▸ Predator effect increases exploration and exploitation capability of PPO. ▸ Powell's pattern search aims to fine tune the solution locally in promising area. ▸ A hybrid penalty less approach is used for constraint handling.