Application of bio-inspired social spider algorithm in multi-area economic emission dispatch of solar, wind and CHP-based power system

摘要

Concept of multi-area interconnection of power systems integrating nonlinear combined heat and power generators, wind, solar and conventional units, constrained by valve point effect, has been explored for the first time to ensure enhanced reliability. Bio-inspired social spider algorithm is used to simultaneously optimize cost of energy generation and emission of such system. Position of a spider on the web (search space) is the initial solution. Distance of a spider from food location is considered as its fitness. The spider is guided towards the food location by the target vibration through a random walk taken by putting a random dimension mask. Exploration of the search space by the algorithm is effectively controlled by tuning its three control parameters: attenuation rate control parameter (r(a)), probability of spider to change mask (p(c)) and probability of changing each bit of the mask vector (p(m)), if mask change is accomplished. Five test systems with different situations have been designed and tested considering three interconnected areas, and the objective of minimization of cost of production; transmission loss; and emission has been achieved reliably.