光储直流微网分散式协调控制运行策略

摘要

针对光储直流微电网,提出一种完全分散式的协调控制运行策略.分析了系统内各个变流器接口控制及其协调控制方法、功率分配与能量管理原理.设计包含孤岛、并网两种工作运行模式,保障系统内新能源发电的充分利用、交流与直流重要负荷的可靠供电以及各工况下系统的稳定运行.采用Matlab/Simulink进行仿真研究,仿真结果表明了所提协调控制运行策略的正确性与可行性.%A fully decentralized coordination control operation strategy for DC microgrid of photovoltaic and energy storage system is put forward. The interface control,coordination control method,power distribution and energy management principle of each converter in the system are analyzed. The operation modes of island and grid connection are included in the strategy to guarantee the sufficient utilization of the new energy power generation in the system,reliable power supply for AC and DC impor-tant loads,and system stable operation under steady and transient conditions. The simulation research was performed with Mat-lab/Simulink. The simulation results show that the coordination control operation strategy is effective and feasible.