中压配电网中考虑保护配合的电阻型超导限流器的优化配置

doi:10.16628/j.cnki.2095-8188.2025.09.005

摘要/Abstract

摘要：

分布式电源的接入显著提高了可再生能源的利用效率,但同时也对中压配电网的安全稳定运行,特别是保护装置的可靠动作提出了新的挑战。电阻型超导限流器,能够有效控制电流的异常增长,并通过与保护装置的协同作用,解决上述问题。聚焦于10 kV配电网,探讨电阻型超导限流器的优化配置问题。分析分布式电源接入对电流保护的影响,构建相应的数学模型,并将超导限流器纳入模型以限制电流的增长。进一步提出基于灵敏性分析的限流器安装位置预选方案,以解决多点分布式电源接入场景下的优化配置问题,并采用孔雀优化算法求解了限流器的优化配置方案。仿真结果验证了所提配置方案在解决该场景下问题的有效性。

关键词: 电阻型超导限流器, 分布式电源, 继电保护, 优化配置, 孔雀优化算法

Abstract:

The integration of distributed generation (DG) has significantly improved the utilization efficiency of renewable energy sources, but it has also posed new challenges to the safe and stable operation of medium-voltage distribution networks, especially regarding the reliable operation of protection devices.The resistive superconducting fault current limiter (RSFCL) can effectively control the abnormal growth of current and solve the above problems through coordinated operation with protection devices. The 10 kV distribution network is focused on and the optimal configuration of RSFCL is investigated.The impact of DG integration on current protection is analyzed,the corresponding mathematical model is constructed, and the superconducting fault current limiter is incorporated into the model to limit the growth of current.Furthermore, a pre-selection scheme for the installation location of the current limiter based on sensitivity analysis is proposed to address the optimal configuration problem under the scenario of multi-point DG integration and the peafowl optimization algorithm is used to solve the optimal configuration of the current limiter.The simulation results verify the effectiveness of the proposed configuration scheme in solving the problem in this scenario.

Key words: resistive superconducting fault current limiter (RSFCL), distributed generation (DG), relay protection, optimal configuration, peafowl optimization algorithm (POA)

中图分类号:

TM71

储琳琳, 陈妍君, 宗明, 段若晨, 顾洁, 金之俭, 刘亦婷. 中压配电网中考虑保护配合的电阻型超导限流器的优化配置[J]. 电器与能效管理技术, 2025, 0(9): 40-49.

CHU Linlin, CHEN Yanjun, ZONG Ming, DUAN Ruochen, GU Jie, JIN Zhijian, LIU Yiting. Optimization of Resistive Superconducting Fault Current Limiter Considering Protection Coordination in Medium-Voltage Distribution Networks[J]. LOW VOLTAGE APPARATUS, 2025, 0(9): 40-49.

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保护所在线路	I段整定值	Ⅲ段整定值
1-2	2 451.9 A/0 s	192.2 A/2.5 s
2-3	2 230.5 A/0 s	182.2 A/2.0 s
5-6	1 921.5 A/0 s	169.2 A/1.5 s
6-7	1 510.2 A/0 s	156.3 A/1.0 s
9-10	1 193.2 A/0 s	128.5 A/0.5 s
21-22	2 559.3 A/0 s	232.5 A/2.0 s
23-24	2 298.1 A/0 s	201.3 A/1.5 s
26-27	1 810.3 A/0 s	180.2 A/1.0 s
27-28	1 556.3 A/0 s	165.7 A/0.5 s
39-40	2 562.9 A/0 s	211.3 A/2.0 s
40-41	2 131.5 A/0 s	191.7 A/1.5 s
42-43	1 772.2 A/0 s	165.2 A/1.0 s
47-48	1 256.3 A/0 s	132.8 A/0.5 s

排序	支路	灵敏度/%
1	2-15	12.08
2	40-49	11.52
3	26-35	10.98
4	1-2	7.67
5	39-40	5.32

RSFCL安装位置	是否接入RSFCL	RSFCL超导带材长度/m
2-15	是	123.7
40-49	是	65.1
26-35	是	77.2
1-2	否	0
39-40	否	0

是否预选址	RSFCL安装支路	迭代次数	目标函数
是	2-15、40-49、26-35	43	0.529
否	2-15、40-49、26-35	81	0.529

权重 (α/β)	RSFCL安装支路 (各支路带材长度/m)	F₁	F₂	保护灵敏度	目标函数
0.7/0.3	2-15(110.7) 40-49(32.5)	0.351	0.745	1.342	0.469
0.4/0.6	2-15(123.7) 40-49(65.1) 26-35(77.2)	0.435	0.592	1.689	0.529
0.3/0.7	2-15(152.6) 40-49(70.5) 26-35(79.9)	0.495	0.578	1.73	0.553