The Cooperative Control of Distributed Generation Based on Multi-agent System

As the depletion of traditional fossil energy is getting serious, renewable energy is attracting attention in worldwide. Along with the study of distributed generation from renewable resources, the concept of Micro grid is getting accepted. In this paper, a nonlinear multi-agent voltage control to microgrid with distributed generations is proposed. The feedback linearization is applied to distributed generations of renewable energy resources to eliminate nonlinear characteristics. And the multi-agent system with leadership information is used to cancel output voltage deviation from primary droop control, and to guarantee the accurate reactive power sharing according to DG's capacity. The proposed control method is distributed with little communication and it's proved to be feasible and accurate by theoretical analysis and simulation.