半月刊

ISSN 1000-1026

CN 32-1180/TP

+高级检索 English
配电网多时段在线恢复决策问题的两阶段求解算法
作者:
作者单位:

1.北京交通大学电气工程学院,北京市 100044;2.国网上海市电力公司电力科学研究院,上海市 200437

摘要:

大停电事故后,在配电网失去上级电网支撑的情况下,可协同多种本地电源恢复网内重要负荷供电,减小损失,提升韧性。为了实现有限发电资源的优化配置,此场景下的恢复问题通常可以建模为多时段恢复问题。然而由于恢复问题中的整数变量和非凸潮流约束,目前尚无方法能够对其有效求解,无法满足在线决策要求。文中提出多时段在线恢复决策问题的两阶段高效求解算法:第1阶段为基于最大生成树算法的辐射状拓扑确定算法,第2阶段为确定负荷状态的整数变量松弛迭代算法。最后,在改进的62节点配电网算例进行测试,验证了两阶段求解算法的可行性和优势,表明所提算法能够实现在线应用,辅助运行人员进行恢复决策。

关键词:

基金项目:

中央高校基本科研业务费专项资金资助项目(2018JBZ004);国家自然科学基金资助项目(51807004)。

通信作者:

作者简介:

王 颖(1992—),女,博士,讲师,主要研究方向:韧性电网、配电网恢复、电力交通融合。E-mail:yingwang1992@bjtu.edu.cn
和敬涵(1964—),女,博士,教授,博士生导师,主要研究方向:电力系统保护与控制、电力系统自愈恢复、主动配电网。E-mail:jhhe@bjtu.edu.cn
王小君(1978—),男,通信作者,博士,副教授,博士生导师,主要研究方向:主动配电网运行优化与故障诊断、电能质量、综合能源系统优化运行、配电网/综合能源系统应急恢复。E-mail:xjwang1@bjtu.edu.cn


Two-stage Solving Algorithm for Online Decision-making on Multi-period Distribution Network Restoration
Author:
Affiliation:

1.School of Electrical Engineering, Beijing Jiaotong University, Beijing 100044, China;2.Electric Power Research Institute of State Grid Shanghai Municipal Electric Power Company, Shanghai 200437, China

Abstract:

If the distribution network loses the support of upper-level grids after an power outage, multiple local sources can be coordinated to restore critical loads, decreasing the losses and enhancing the resilience. To realize optimized allocation of limited generation resources, the restoration problem in this case can be formulated as a multi-period restoration problem. However, due to the integer variables and nonconvex power flow constraints, it is difficult to solve the multi-period restoration problem efficiently so as to satisfy the online decision-making requirement. This paper proposes a two-stage solving method to efficiently solve the multi-period restoration problem. In the first stage, a maximum spanning tree heuristic (MST) based algorithm is proposed to determine the radial topology. In the second stage, an iterative algorithm based on integer variable relaxation is proposed to determine the load status. Finally, the modified 62-bus distribution system is used to demonstrate the proposed algorithms of the two-stage solving method. The results show that the proposed method is effective and superior, and the proposed algorithm is promising in online application to assist the restoration decision of operators.

Keywords:

Foundation:
This work is supported by the Fundamental Research Funds for the Central Universities (No. 2018JBZ004) and National Natural Science Foundation of China (No. 51807004).
引用本文
[1]王颖,和敬涵,王小君,等.配电网多时段在线恢复决策问题的两阶段求解算法[J].电力系统自动化,2021,45(3):121-129. DOI:10.7500/AEPS20200409007.
WANG Ying, HE Jinghan, WANG Xiaojun, et al. Two-stage Solving Algorithm for Online Decision-making on Multi-period Distribution Network Restoration[J]. Automation of Electric Power Systems, 2021, 45(3):121-129. DOI:10.7500/AEPS20200409007.
复制
分享
历史
  • 收稿日期:2020-04-09
  • 最后修改日期:2020-08-28
  • 录用日期:
  • 在线发布日期: 2021-02-03
  • 出版日期:
相关附件