Reasonable control of charging and discharging for electric vehicles(EVs)can improve the safety and economy of electric power system
and significantly reduce charging costs for EV users. The demand response strategy is one of the key technologies for orderly charging and discharging of EVs
which can solve a serious of problems caused by large-scale EVs interfacing with the grid and improve the consumption ratio of renewable energy in the grid. It has been widely studied by scholars at home and abroad.Firstly
the background and technology of demand response are illustrated. Then
aiming at the characteristics of demand response
the price-based and incentive-based demand response strategies are analyzed and compared respectively. Finally
relative suggestions are put forward for the domestic development of demand response for charging and discharging of EVs.