Rural grid has large waste for its discontinuity in application. Li-ion battery, with feature such as small size, large power density, high single voltage, low self-discharge rate, low inner resistor and so on, has been applied in power storage system. The intelligent power storage system based on li-ion battery and super capacitor can effectively storage the extra power in the period of grid off-peak, and also could absorb the feedback energy when the velocity modulation system is braking, largely increases the use rate of energy storage.

Much energy was created when hybrid electric vehicle braked down, Battery storage system can not absorb the energy efficiently due to its limitation, which caused energy waste. Regenerative braking system with super capacitor based on TMS320F2812 was brought forward in order to solve the problem, ADVSOR simulation results prove the system can improve battery’s performance and reduce engine emission pollution greatly.