Optimal Allocation of Soft Open Point in Active Distribution Network Based on Improved Sensitivity Analysis

被引：0
|
作者：
Xiong Z. [1 ,2 ,3 ]
Chen T. [1 ,2 ,3 ]
Du L. [1 ,2 ,3 ]
Dai Z. [1 ,2 ,3 ]
Chen J. [1 ,2 ,3 ]
Xu L. [1 ,2 ,3 ]
机构：
[1] NARI Group Corporation, State Grid Electric Power Research Institute, Nanjing
[2] NARI Technology Co., Ltd., Nanjing
[3] State Key Laboratory of Smart Grid Protection and Control, Nanjing
来源：
Dianli Xitong Zidonghua/Automation of Electric Power Systems | 2021年 / 45卷 / 08期
基金：
中国国家自然科学基金;
关键词：
Active distribution network; Distributed generator; Improved sensitivity analysis; Second-order cone programming; Siting and sizing; Soft open point (SOP);
D O I：
10.7500/AEPS20191021004
中图分类号：
学科分类号：
摘要：
As a large number of intermittent distributed generators (DGs) keep penetrating into distribution networks, the problems such as voltage violation and bidirectional power flow become more and more serious. Soft open point (SOP) is a flexible power electronic device that is installed in distribution networks to replace the traditional tie switch. It can realize fast voltage regulation and accurate power flow control, thus effectively solving the corresponding problems caused by DGs. However, the high investment cost of SOP makes the SOP siting and sizing problem particularly critical. An SOP optimal allocation method in active distribution networks based on improved sensitivity analysis is proposed. Firstly, combined with the timing variation characteristic of DG output, an improved sensitivity analysis method is used to optimize the SOP location from the perspective of improving the voltage distribution. Secondly, the second-order cone programming algorithm is used to solve the SOP siting and sizing optimization model under improved sensitivity calculation. Finally, the proposed optimization method is analyzed and verified on the modified IEEE 33-bus distribution system. The results of the case study show that the SOP optimal allocation method proposed in this paper can effectively save annual comprehensive operation cost of distribution networks and improve system voltage, which is beneficial to improve the economics and reliability of active distribution network operation. © 2021 Automation of Electric Power Systems Press.
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收藏
页码：128 / 137
页数：9
相关论文
共 31 条
  • [1] CONTI S, NICOLOSI R, RIZZO S A, Et al., Optimal dispatching of distributed generators and storage systems for MV islanded microgrids, IEEE Transactions on Power Delivery, 27, 3, pp. 1243-1251, (2012)
  • [2] VERZIJLBERGH R A, DE VRIES L J, LUKSZO Z, Et al., Renewable energy sources and responsive demand. Do we need congestion management in the distribution grid?, IEEE Transactions on Power Systems, 29, 5, pp. 2119-2128, (2014)
  • [3] WANG Bo, XIAO Jun, ZHOU Ji, Et al., Dispatchable region of distributed generators and microgrids in distribution systems, Power System Technology, 41, 2, pp. 363-370, (2017)
  • [4] LOU Chengwei, ZHANG Xiaohui, CONG Pengwei, Et al., Service restoration strategy of active distribution network with soft open points, Automation of Electric Power Systems, 42, 1, pp. 23-31, (2018)
  • [5] ZHAO Jinli, LI Yuwei, LI Peng, Et al., Sequential voltage regulation of soft normally open point in active distribution network based on second-order cone programming, High Voltage Engineering, 42, 7, pp. 2134-2141, (2016)
  • [6] LI P, JI H, WANG C, Et al., Coordinated control method of voltage and reactive power for active distribution networks based on soft open point, IEEE Transactions on Sustainable Energy, 4, 8, pp. 1430-1442, (2017)
  • [7] LI P, JI H, WANG C, Et al., Optimal operation of soft open points in active distribution networks under three-phase unbalanced conditions, IEEE Transactions on Smart Grid, 10, 1, pp. 380-391, (2017)
  • [8] WANG Chengshan, SONG Guanyu, LI Peng, Et al., Optimal configuration of soft open point for active distribution network considering the characteristics of distributed generation, Proceedings of the CSEE, 37, 7, pp. 1889-1897, (2017)
  • [9] WANG C, SONG G, LI P, Et al., Optimal siting and sizing of soft open points in active electrical distribution networks, Applied Energy, 189, pp. 301-309, (2017)
  • [10] MA Li, XUE Fei, SHI Jiying, Et al., Tri-level coordinated planning model of distributed generator and intelligent soft open point for active distribution network, Automation of Electric Power Systems, 42, 11, pp. 86-93, (2018)
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