Collaborative Planning Method of Flexible Interconnection Devices for Multi-Voltage Level Distribution Network Considering Integrated Profits

doi:10.11930/j.issn.1004-9649.202401080

Abstract

Abstract:

To avoid the above problems, a collaborative planning method of flexible interconnection devices for distribution networks is proposed considering integrated profits. With the installation location and capacity of soft open point (SOP) optimized in multi-voltage level distribution networks, the operation in normal and the supply restoration in fault are both improved, promoting the system’s integrated indicators of economy and reliability. Finally, the case study is conducted based on an actual distribution network data in Hebei province, verifying the effectiveness of the proposed method and analyzing the improvement of economy, safety, and reliability.

Key words: distribution network, plan and design, flexible interconnection device, soft open point

Chunguang HE, Linfeng WANG, Yuan CAO, Jiakun AN, Zijian LEI, Guanyu SONG, Haoran JI. Collaborative Planning Method of Flexible Interconnection Devices for Multi-Voltage Level Distribution Network Considering Integrated Profits[J]. Electric Power, 2025, 58(1): 78-84.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.202401080

https://www.electricpower.com.cn/EN/Y2025/V58/I1/78

Figures/Tables 8

References 23

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区域	节点数	有功负荷/ MW	无功负荷/ (MV·A)	DG接入/ MW
馈线A	45	3.19	1.36	2.18
馈线B	37	3.21	1.37	13.91
馈线C	63	4.77	2.03	1.18
馈线D	81	6.76	2.88	2.94
变电站S1	8	38.00	18.00	36.20
变电站S2	7	142.40	57.60	95.10
总计	241	198.33	83.24	151.51

区域	节点数	有功负荷/ MW	无功负荷/ (MV·A)	DG接入/ MW
馈线A	45	3.19	1.36	2.18
馈线B	37	3.21	1.37	13.91
馈线C	63	4.77	2.03	1.18
馈线D	81	6.76	2.88	2.94
变电站S1	8	38.00	18.00	36.20
变电站S2	7	142.40	57.60	95.10
总计	241	198.33	83.24	151.51

	方案1	方案2	方案3
综合成本/万元	—	457.3	357.7
SOP建设&运维成本/万元	—	0	129.1
运行损耗成本/万元	158.5	320.7	158.1
停电损失成本/万元	135.5	136.6	70.5
节点电压范围(p.u.)	0.94-1.07	0.95-1.05	0.95-1.05
S2最大反向负载率/%	2.6	0	0

	方案1	方案2	方案3
综合成本/万元	—	457.3	357.7
SOP建设&运维成本/万元	—	0	129.1
运行损耗成本/万元	158.5	320.7	158.1
停电损失成本/万元	135.5	136.6	70.5
节点电压范围(p.u.)	0.94-1.07	0.95-1.05	0.95-1.05
S2最大反向负载率/%	2.6	0	0

SOP装设位置	SOP装设容量/ (MV·A)	SOP装设位置	SOP装设容量/ (MV·A)
A20-B2	0.5	B32-D79	0.3
A42-C59	0.4	B35-D76	0.2
C45-B28	0.2	S1.1–S1.2	1.2
B7-D53	1.8	S1.7–S1.8	4.1
B23-D78	0.5	—	—