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Because of energy shortage, environment pollution is serious day by day. Various countries are trying to find a kind of energy use with little environmental pollution and high utilization rate. Distributed generation overcomes many weaknesses of traditional centralized power supply with the advantages of less environmental pollution, high energy utilization rate, reliability and flexibility etc, attracts attention of all over the world more and more. Converter technology is the difficulty to widely use distributed generation. In this paper, energy storage system structure and control strategy for distributed generation are studied through theoretical analysis, simulation and experiment platform and design distributed generation system based on energy storage converter technology. It can be seen that energy storage converter can satisfy the relevant technical requirements applied in distributed generation system. The effectiveness of the method proposed in this paper is verified by the practical tests.