The traditional proportional pulse compensation voltage balance control strategy is modeled and analyzed. It is found that the influence of output current disturbance on the balance control can not be neglected when a wide range of load is switched on or off. On this basis, the relational surfaces between the system adjustment time, the output voltage drop value and the system characteristic parameters are given. Aiming at the problem of poor CHBR dynamic performance under proportional pulse compensation voltage balance control during load switching, combining the relationship between output current and output voltage ripple peak, a ripple voltage feedforward voltage balance control strategy is proposed by introducing the output voltage ripple peak into voltage balance link, and the detection method of ripple voltage peak is given. Finally, the simulation model and experimental platform of three-stage CHBR are used to compare the proposed strategy with the proportional pulse compensation voltage balance control strategy. The test results show that the maximum unbalance voltage between the output voltages of the proposed strategy is reduced by 12 V and the adjustment time is shortened by 43 ms. The correctness and effectiveness of the proposed strategy are proved. This work is supported by National Natural Science Foundation of China (No. 51467005) and Natural Science Foundation of Jiangxi Province (No. 20181BAB206033).