绿色数据中心的供电运行控制和能量管理  

Power Supply Operation Control and Energy Management in Green Data Center

作　　者：柏晨 王念春[2] 卓青 BO Chen;WANG Nianchun;ZHUO Qing(Architects and Engineers Co.,Ltd,Southeast University,Nanjing 210096,China;School of Electrical Engineering,Southeast University,Nanjing 210096,China;Siemens Electrical Apparatus Ltd,Suzhou 215129,China)

机构地区：[1]东南大学建筑设计研究院有限公司,南京210096 [2]东南大学电气工程学院,南京210096 [3]苏州西门子电器有限公司,苏州215129

出　　处：《电源学报》2021年第1期107-114,共8页Journal of Power Supply

基　　金：国家自然科学基金国际(地区)合作与交流资助项目(51320105002)。

摘　　要：将可再生能源引入数据中心高压直流UPS供电系统,形成直流微网的供电方式。基于此设计了一种分层系统运行控制和能量管理策略,旨在实现系统可靠运行和能量优化利用。微网由电网、光伏发电单元、储能电池和数据中心计算负荷组成,设备级控制考虑并网和孤岛2种运行方式划分为4种工作模式,光伏boost变换器有MPPT和降功率稳压2种工作状态,网侧双向变换器通过电流前馈解耦实现双环控制,该层采用母线电压协调控制方法切换各变换器的工作状态,以维持供电系统的有功功率平衡实现系统稳定。系统级控制通过自上而下的调度决策优化运行,在供电系统控制策略中结合数据中心能耗管理方法,以更大程度地优化能源管理。最后,建模仿真验证了所述策略的可行性。Renewable energy is introduced into the high voltage direct current(HVDC)uninterruptible power supply(UPS)system used in a data center to form a power supply mode of DC micro-grid.On this basis,a hierarchical system operation control and energy management strategy is designed to achieve reliable system operation and optimal energy utilization.The micro-grid consists of power grid,a photovoltaic(PV)power generation unit,an energy storage battery and data center computing load.The equipment-level control considers two operation modes,i.e.,grid connection and islanding,which are divided into four working modes.The PV boost converter has two working states,i.e.,maximum power point tracking(MPPT)and power reduction,while the grid-side bidirectional converter realizes double-loop control through current feedforward decoupling.This layer uses a bus voltage coordination control method to switch the operating states of each converter,thereby maintaining the active power balance of the power supply system and achieving system stability.The system-level control optimizes operation through a top-down scheduling decision-making.The control strategy for power supply system combines the management method for data center energy consumption,to optimize energy management.Finally,modeling and simulations verify the feasibility of the proposed strategy.

关 键 词：绿色数据中心 变换器控制 直流微网 分层控制 

分 类 号：TM464[电气工程—电器]