Capacity Allocation Strategy of Energy Storage in Low-Carbon Park Considering Equivalent Energy Storage Characteristics of Thermal System

doi:10.16183/j.cnki.jsjtu.2022.507

Abstract

Abstract:

Under the low-carbon development goal, energy storage allocation is the key measure to ensure the safe and economic operation of low-carbon parks, and to reduce carbon emissions. To solve the problems of inaccurate carbon emission calculation and insufficient utilization of equivalent energy storage resources in low-carbon parks, this paper proposes a dynamic emission factor calculation method based on the carbon emission flow theory, which realizes the accurate measurement of indirect carbon emissions from park electricity consumption. Then, taking into account the available equivalent energy storage resources in the park, it proposes an energy storage capacity optimization allocation model considering the equivalent energy storage characteristics of thermal system, and uses the big M method to equivalently transform the nonlinear constraints in the model. Finally, it conducts simulation analysis based on a case system to verify the correctness and effectiveness of the proposed model.

Key words: low carbon, energy storage system, optimization configuration, carbon emission flow, indirect carbon emissions

CLC Number:

TM732

CHEN Hui, HE Gengsheng, LIU Yuliang, ZENG Hongmei, ZHANG Shixu, LI Yaowang. Capacity Allocation Strategy of Energy Storage in Low-Carbon Park Considering Equivalent Energy Storage Characteristics of Thermal System[J]. Journal of Shanghai Jiao Tong University, 2024, 58(6): 863-871.

Figures/Tables 16

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Tab.1

Parameters of CHP unit

参数	取值
r_CHP	0.85
$F - C H P$ /m³	18
$F_C H P$ /m³	3
m_CHP/(元·m^-3)	71.4
$φ C H P p$ /[m³·(kW·h)^-1]	2.4
$φ C H P h$ /[m³·(kW·h)^-1]	0.95
$P - C H P$ /MW	4.5
$P_C H P$ /MW	0.85

Tab.1

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机组类型	碳排放因子取值
超超临界1 000 MW级机组	0.793 8
超超临界600 MW级机组	0.806 7
超临界600 MW级机组	0.838 5
亚临界300 MW级机组	0.887 5
亚临界循环流化床300 MW级机组	0.917 1
超高压及以下机组	0.936 3
燃气机组	0.378 9
垃圾发电	1.108
沼气发电	0.23

场景	规划结果
场景	储能配置功率/MW	储能配置容量/(MW·h)	系统日均运行成本/元	碳排放量/t	弃风电量/(MW·h)
1	—	—	42 871.3	188.83	18.55
2	2.17	9.17	37 084.1	182.50	7.70
3	2.33	9.17	36 236.9	178.04	3.45