Research of microgrid technology control strategy in distributed generation

摘要

This paper analyzes the traditional droop control strategy applied in microgrid systems which contains some defects, meanwhile, a distributed optimal drop control scheme is proposed to improve the stability of the microgrid, which has good advantages on the maximum limit of overflow situation. Also, it can help to achieve the goal of microgrid' seamless switching between network structure and the state transition, which can the energy storage devices of different response time choose the appropriate control strategy. Finally, the model of droop parallel control and the integrated control are established. By using the bode diagram, this paper studies the influence of various control parameters on the system stability, providing relevant basis for the optimal design of the system. At the same time, through the simulation model, the results are verified and analyzed.