A Survey on Data Center Power Load Optimization Considering Demand Response

Power consumption of data centers has increased rapidly in recent years. As a novel large-scale demand response resource, it becomes a research hotspot worldwide. Different from traditional demand response resources, data center electricity load has potential to adjust both on time and space scales. The adjustment potential and load optimization are discussed based on modeling of power consumption in hardware level and data network workload level respectively. The research junctions specific to self-management and colocation modeare analyzed. Thestate-of-art researches are summarized in multiple types including direct load control, price guidance and participation in electricity market. Finally, the key points of data center demand response implementation are pointed out. Advice for further researchdirection is discussed in aspects of quantification of demand response potential, commercial mode and benefit analysis. © 2018, Power System Technology Press. All right reserved.