The electric vehicle charging and discharging network in the city traffic system is regard as a typical Cyber Physical System. On the basis of this application background

we put forward a concept of mobile microgrid. The mobile microgrid may be established on the basis of electric vehicle wireless charging and discharging on the road

the characteristics of which are analyzed. Then the typical architectures are researched. Based on the characteristics of electric vehicle wireless charging and discharging network as well as traffic network

a mathematical analysis model of mobile microgrid is established. Moreover

the improved differential evolution algorithm of mobile microgrid optimization operation is studied

which can realize the optimization control of normal

emergency

and fault model

with the electric charge and discharge information and traffic information. The simulation results show that more than 20% of power is transferred between the nodes by electric vehicles

and amount of solar power generation absorption is increased by about 20% in normal mode. According to the available mobile power storage capacity

mobile mocrogrid may provide great support for import load in fault mode.