Based on the large-scale penetration of electric vehicles (EV) into the building cluster

a multi-objective optimal strategy considering the coordinated dispatch of EV is proposed

for improving the safe and economical operation problems of distribution network. The system power loss and node voltage excursion can be effectively reduced

by taking measures of time-of-use (TOU) price mechanism bonded with the reactive compensation of energy storage devices. Firstly

the coordinate charging/discharging load model for EV has been established

to obtain a narrowed gap between load peak and valley. Next

a multi-objective optimization model of the distribution grid is also defined

and the active power loss and node voltage fluctuation are chosen to be the objective function. For improving the efficiency of optimization process

an advanced genetic algorithm associated with elite preservation policy is used. Finally

reactive compensation capacity supplied by capacitor banks is dynamically determined according to the varying building loads. The proposed strategy is demonstrated on the IEEE 33-node test case

and the simulation results show that the power supply pressure can be obviously relieved by introducing the coordinated charging/discharging behavior of EV; in the meantime

via reasonable planning of the compensation capacitor

the remarkably lower active power loss and voltage excursion can be realized

ensuring the safe and economical operation of the distribution system.