Multichannel bidirectional Buck/Boost converters, served as energy exchange interfaces had often been used in energy storage systems. The basic modeling method was used to build small signal AC model for threechannel bidirectional Buck/Boost converter. Base on the open loop characteristic of the converter, the voltage and current compensation network were designed, following this, a new double closedloop control strategy based on feedforward correction was proposed. The paper adopted the MATLAB simulation research to prove the correctness of the proposed control strategy. The Simulation results showed that the control strategy could provide good dynamic and steadystate performance for the threechannel bidirectional Buck/Boost converters, and at the same time, it demonstrates good robustness which could adapt to wide range of load variation.