Modeling and analysis of multi-energy isolated microgrid with wind-PV-diesel-storage in islands and reefs
The multi-energy isolated microgrid is a key technology to solve the power supply problems of remote islands and reefs,ensure the stability of power supply for military and civilians on the islands and improve the utilization of natural resources on islands.Traditional island-isolated micro-grid modeling power supply types are not complete,and AC busbar is less applied.Accordingly,a mathematical model of four power sources was established,including wind power,photovoltaic sys-tem,diesel generator,and battery storage.A Boost circuit based on the disturbance observation method and a vector control method based on grid voltage orientation was used in the power electronic converter.In the system model,four power sources with wind-PV-diesel-storage converge to the AC bus,and the overall power and voltage tend to be steady.The simulation results show that the island multi-energy independent microgrid model constructed is scientific and reasonable,which can lay a solid foundation for the research of health management of islands and reefs multi-energy microgrids.
islands and reefs microgridsmulti-energy systemsisolated microgrid