With the reform of power-sold side

third parties which provide service of new energy power generation has become new independent stake-holder. Based on the concept of virtual microgrid

the scheduling problem of new independent stake-holders which access in the active distribution network in the form of virtual microgrid is focused

and then multi-time scale optimization scheduling model for virtual microgrid is constructed with its solving algorithm. Day-ahead scheduling model and real-time scheduling model is included in optimization scheduling. Day-ahead scheduling model aims at maximizing the interest of virtual microgrid

while real-time scheduling model takes safe and stable operation of virtual microgrid as the optimization goal. Finally

based on the load and distribution generation output forecasts

as well as the transformed IEEE 33-bus network

this paper utilizes the differential evolution-cell membrane hybrid algorithm to solve multi-time scale scheduling model

and the case studies show that: through optimization scheduling

it can not only decease the net losses of virtual microgrid

but also promote the benefits of visual microgrid and the utilization of renewable energy.