For Wind-PV-Storage microgrid system, PV and WTG are uncontrollable DGs. So it is very important that lithium batteries and SC could work harmoniously. In this paper, Energy management strategy combined with the generation management and demand side management is proposed based on the different characteristics of lithium batteries and SC. The energy management strategy prolongs the battery life and improves the utilization efficiency of hybrid storage system, which is significant to practical research. The goals of real-time power balance and frequency regulation in microgrid are achieved. The above conclusions have been verified through the simulation cases.