It proposes a solution of IDC room power supply with HVDC combined flywheel energy storage system, it can combine the ad-vantages of both to achieve strong combination. Firstly, it describes the social background of our energy reduction. Secondly, it expounds the reliability, safety, energy saving effect, and social and economic benefits of the new system, final y it proposes the summary and outlook.% 提出了一种IDC机房的高压直流联合飞轮储能供电系统，采取了高压直流+飞轮储能的设计方案，实现了高压直流与飞轮储能的“强强联手”。阐述了我国节能减排社会背景，论证了高压直流联合飞轮储能系统的可靠性、安全性、节能减排效果、社会与经济效益，并对该系统进行了总结和展望。
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