“Source-load” Low-carbon Optimal Scheduling Method for Data Center Microgrids Considering Power to Gas and Carbon Capture

doi:10.11985/2022.03.010

Abstract

Abstract:

In order to promote multi energy complementary and low-carbon of data centers, a “source-load” low-carbon optimal scheduling model for data center microgrids is proposesd, which considers power to gas and carbon capture based on stochastic programming. The model considers the constraints of power generation, workloads, electricity to gas system and carbon capture. Carbon capture power plant, electric gas to gas, and combined heat power unit(CCPP-P2G-CHP) are introduced into the power generation side, the captured CO₂ is used as the fuel for the synthesis of methane in the electric gas to electric system. Considering the interactive and batch workloads on the load side, a data center power consumption and workload allocation model are constructed. The simulation results show that the proposed model can minimize the operation cost of the data center microgrid through the optimal scheduling of power generation and workload based on the consideration of carbon emission.

Key words: Power-to-gas, low-carbon optimal scheduling, carbon capture, data center microgrid, stochastic programming

CLC Number:

TM73

TIAN Ming, ZHANG Haifeng, LIU Kun. “Source-load” Low-carbon Optimal Scheduling Method for Data Center Microgrids Considering Power to Gas and Carbon Capture[J]. Journal of Electrical Engineering, 2022, 17(3): 85-94.

Figures/Tables 16

References 28

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机组	最小出力/kW	最大出力/kW	最小开启/h	最小关闭/h	向下爬坡	向上爬坡
DG1	100	1 400	5	2	210	120
DG2	200	1 000	2	3	150	180
CHP1	200	600	6	2	150	420
CHP2	300	800	8	3	250	480

参数	数值
电池容量/(kW·h)	2 800
充电功率上限/kW	700
放电功率上限/kW	800
初始电量/(kW·h)	300
荷电上限	0.9
荷电下限	0.1
充电频率	0.91

设备	参数	数值
电解槽	电解槽效率电解槽功率上限/kW	0.65 1 000
燃料电池	燃料电池效率燃料电池放电上限/kW	0.75 200
甲烷反应器	甲烷反应器效率甲烷反应器功率上限	0.85 750
储氢罐	储氢罐容量上限/kmol 储氢罐容量下限/kmol	0 1 000

数据负荷	执行时长/h	执行周期/h	是否连续	GPU 频率/GHz
1	16	24	否	2 000
2	15	24	否	2 000
3	19	24	是	1 800
4	12	24	否	1 800
5	10	24	否	2 000
6	12	24	否	2 000

集群	空闲功耗/kW	满负载功耗/kW	最大负载量/个	开机功耗/kW	关机功耗/kW
1	80	145	80 000	100	90
2	68	126	80 000	90	80
3	106	200	120 000	160	150
4	120	180	120 000	160	150
5	88	150	100 000	120	110