High-capacity energy storage generator can work as pulse power supply for large pulse power load through inverter after the energy storage generator′s output rectified. The loaded ability and reliability of system can be improved effectively with energy storage generators working in parallel operation. Reasonably distributing the output power of energy storage generators working in parallel operation with different speed can effectively improve the performance of system. Therefore, it is necessary to design a kind of excitation control algorithm with power regulation function. The power feed-forward control was introduced on the basis of voltage and current closed-loop control, the relationship between load power and excitation current was deducted and the feed-forward control parameters were solved, and according to the energy storage generator initial speed, the load power distribution algorithm was designed. Simulation test results show that the power feed-forward control plays a leading role in excitation control, which can control the energy storage generator′s output power and increase the excitation current response speed, and can inhibit the disturbance of load power on excitation system effectively. 