Wind and solar micro power grid system

The invention provides a wind and solar micro power grid system. The wind and solar micro power grid system comprises a micro power grid interval system, a micro power grid main control system and a micro power grid monitoring system, wherein the micro power grid interval system comprises a wind power generator, a photovoltaic system, an energy type energy storage element and a power type energy storage element which are connected to a low voltage bus; a grid-connected transformer is connected between the low voltage bus and a high voltage bus of a large power grid, and the grid transformer is used for converting the electric energy supplied by the wind and solar micro power grid system into electric energy with predetermined potential and transmitting the electric energy with the predetermined potential to the large power grid; the micro power grid main control system is used for coordinating and controlling all the devices in the micro power grid interval system and executing at least one of mode switches such as load shifting, power smoothing and islanding-grid connection; and the micro power grid monitoring system is used for monitoring the state of all the devices in the micro power grid interval system at real time.