Shared Energy Storage Multi-Objective Allocation Strategy Considering Integrated Energy Microgrid Access to Active Distribution Network

doi:10.16183/j.cnki.jsjtu.2023.021

Abstract

Abstract:

In order to give full play to the advantages of shared energy storage in improving economy and energy utilization, while considering the role of multi-energy complementation and coupling of integrated energy microgrids in active distribution networks, a multi-objective optimal allocation strategy of shared energy storage is proposed for the active distribution network connected with integrated energy microgrid. First, the optimization objectives of the economy and voltage stability of the distribution network and the configuration capacity of the shared energy storage are analyzed, the coordinated operation of the source-net-load side multi-flexible resources of the active distribution network is considered, and the active distribution network and the integrated energy microgrid are modeled. Then, the model is solved based on the Pareto optimal multi-objective particle swarm algorithm. Finally, the optimization algorithm of shared energy storage configuration is established in conjunction with the IEEE 33-node distribution system to verify the effectiveness of the proposed configuration strategy.

Key words: active distribution network, energy storage, integrated energy microgrid (IEM), multi-objective optimization, Pareto optimal theory

CLC Number:

TM732

MI Yang, CHEN Yuyang, CHEN Boyang, HAN Yunhao, YUAN Minghan. Shared Energy Storage Multi-Objective Allocation Strategy Considering Integrated Energy Microgrid Access to Active Distribution Network[J]. Journal of Shanghai Jiao Tong University, 2024, 58(9): 1309-1322.

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储能配置参数	数值
储能初始容量比例/%	55
功率成本/(元·kW^-1)	600
容量成本/[元·(kW·h)^-1]	600
日维护成本/(a·kW)	40
储能预期的使用时间,T_S/d	10×365
储存容量运行范围/%	15~90
储能充放电效率	0.98
储能容量与充放电功率比	2.1
储能容量/(kW·h)	1366.59
储能年综合成本/万元	80.437

场景	配电网日网损/MW	配电网电压稳定性	配电网运行成本/元	配电网新能源消纳率/%
1	1.562	87.234	1.6587×10⁴	85.354
2	1.318	75.976	1.3845×10⁴	89.659
3	1.172	73.558	1.3327×10⁴	94.028
4	1.162	69.454	1.2938×10⁴	95.921

时段	时刻	电价/元
峰时段	08:00—12:00	1.35
	17:00—21:00
平时段	12:00—17:00	0.85
	21:00—24:00
谷时段	00:00—08:00	0.35

场景	微网运行成本/万元	微电网新能源消纳率/%
1	3.9543	89.6
2	3.3898	100.0
3	3.3853	100.0
4	3.3653	100.0

场景	储能日总成本/元	配网日运行成本/万元	微网日运行成本/万元	总日运行成本/万元	年总成本/万元
1	0	1.6587	3.9543	5.6130	2 048.7
2	868.4	1.3845	3.3898	4.8032	1 784.9
3	1 284.6	1.3027	3.3853	4.6880	1 758.0
4	734.6	1.2938	3.3653	4.6836	1 736.3