An optimization model for restructuring distribution network considering grid-connected security constraints of DGs

被引：0

作者：

Wang B. ^{[1
]}

Yu Y. ^{[1
]}

He X. ^{[1
]}

Wang Q. ^{[1
]}

Zhou N. ^{[2
]}

Wu J. ^{[2
]}

机构：

[1] Ningbo Power Supply Company, State Grid Zhejiang Electric Power Co., Ltd., Ningbo

[2] State Key Laboratory of Power Transmission Equipment & System Security and New Technology (Chongqing University), Chongqing

来源：

Dianli Xitong Baohu yu Kongzhi/Power System Protection and Control | 2019年 / 47卷 / 22期

基金：

中国国家自然科学基金;

关键词：

Distributed power sources; Grid-connected security constraints; Immune genetic algorithm; Restructuring distribution network;

D O I：

10.19783/j.cnki.pspc.181541

中图分类号：

学科分类号：

摘要：

This paper proposes an optimization model for restructuring distribution network in consideration of grid-connected security constraints of DGs. First, the problems of improving regional load balance and ensuring emergency reserve of the upper-level power supply not exceeded after distributed generation connection are analyzed, and the distributed generations’ return current and the upper-level power reserve capacity are collectively called distributed generation grid-connected safety constraints. And then, two evaluation indexes of regional power total substation capacity and 10 kV feeders’ network structure are proposed. Subsequently, this paper proposes an optimization model for restructuring 10 kV distribution network in considering grid-connected security constraints of DGs. Immune genetic algorithm is used to solve the model that regional power total substation capacity is qualified but 10 kV feeders’ network structure is not. Finally, the effectiveness of the proposed method is verified by simulation analysis of a practical 10 kV distribution network’s restructuring and optimization problem. © 2019, Power System Protection and Control Press. All right reserved.

引用

页码：67 / 77

页数：10

共 23 条

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