Generation and demand management via Particle Swarm Optimization

This paper presents an implementation of the economic dispatch problem with demand participation representation using the Particle Swarm Optimization (PSO) technique. The problem is formulated in the context of a small grid, whose manager dispatches generation and flexible demand along a time horizon in order to minimize generation costs. Power flow equality constraints and inequality constraints due to operational limits are modeled. Equality constraints are handled by penalty functions and by an enforcement mechanism. Two applications, one using the IEEE 30-bus test system, illustrate the applicability of the optimization technique. The results obtained show that the proposed PSO can provide good dispatch results.