计及供电-供水系统耦合关系的配电网故障恢复优化决策方法

doi:10.12204/j.issn.1000-7229.2021.03.007

电力建设 ›› 2021, Vol. 42 ›› Issue (3): 54-60.doi: 10.12204/j.issn.1000-7229.2021.03.007

计及供电-供水系统耦合关系的配电网故障恢复优化决策方法

李穆寅¹, 曹志远¹, 李佳旭¹, 马佳骏¹, 许寅¹, 刘家妤², 张琪祁²

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

收稿日期:2020-09-22 出版日期:2021-03-01 发布日期:2021-03-17
通讯作者: 李佳旭
作者简介:李穆寅(1998),男,本科生,主要研究方向为配电网故障恢复|曹志远(1998),男,本科生,主要研究方向为配电网故障恢复|马佳骏(1995),男,硕士研究生, 主要研究方向为电力系统韧性、配电网故障恢复|许寅(1986),男,博士,教授,博士生导师,主要研究方向为配电系统故障恢复、电力系统韧性、电力系统电磁暂态仿真等|刘家妤(1986),女,硕士,高级工程师,主要研究方向为韧性电网、电气设备状态监测与故障诊断、现场特殊试验、超导电缆技术研究与应用等|张琪祁(1985),女,硕士,主要研究方向为韧性电网、电力系统仿真和控制等
基金资助:
国网上海市电力公司项目(B30940190000)

Optimization Decision-Making Method for Distribution System Restoration Considering the Interdependency Between Power and Water Distribution Systems

LI Muyin¹, CAO Zhiyuan¹, LI Jiaxu¹, MA Jiajun¹, XU Yin¹, LIU Jiayu², ZHANG Qiqi²

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

Received:2020-09-22 Online:2021-03-01 Published:2021-03-17
Contact: LI Jiaxu
Supported by:
State Grid Shanghai Municipal Electric Power Company Project(B30940190000)

摘要/Abstract

摘要：

在大停电事故后,协同利用本地分布式电源为关键负荷恢复供电是提升配电网韧性的有效措施。供电系统与供水系统是城市中2种具有密切耦合关系的生命线设施,若在制定恢复策略时对上述耦合关系考虑不足,会影响生命线设施的正常运转。首先挖掘了极端事件下配电网与配水网的耦合关系,在此基础上,以最大化电、水关键负荷恢复数目为目标,考虑配电网、配水网及耦合元件的运行特点,建立了计及供电-供水系统耦合关系的配电网故障恢复优化决策模型,并利用多种线性化方法将模型近似为混合整数线性规划(mixed-integer linear programming, MILP)模型;最后,构建算例进行对比验证,结果证明该方法可以恢复更多电网和水网关键负荷,实现有限发电资源的最优分配。

关键词: 韧性, 配电网故障恢复, 供电-供水系统耦合, 线性化

Abstract:

When an outage event occurs, coordinating local distributed generators to restore critical loads is an effective way to enhance the resilience of the power distribution system (PDS). PDS and water distribution system (WDS) are two kinds of lifeline infrastructures with interdependency in a city. If we establish the restoration strategy without enough consideration of the interdependency between the two systems, the lifeline infrastructures may not work properly. This paper analyzes the interdependency between PDS and WDS firstly. On this basis, authors formulate the distribution system restoration method considering the interdependency between PDS and WDS as a mixed-integer linear program (MILP) through several linear approximation methods. The objective function is maximizing the number of restored critical loads, and the operational characteristic of PDS, WDS, and the interdependent components are taken into account. The method is tested in an integrated power and water system. The result shows that the proposed method can restore more critical loads and make the allocation of limited generation resources optimally.

Key words: resilience, distribution system restoration, interdependency of power and water distribution systems, linear approximation

中图分类号:

TM712

李穆寅, 曹志远, 李佳旭, 马佳骏, 许寅, 刘家妤, 张琪祁. 计及供电-供水系统耦合关系的配电网故障恢复优化决策方法[J]. 电力建设, 2021, 42(3): 54-60.

LI Muyin, CAO Zhiyuan, LI Jiaxu, MA Jiajun, XU Yin, LIU Jiayu, ZHANG Qiqi. Optimization Decision-Making Method for Distribution System Restoration Considering the Interdependency Between Power and Water Distribution Systems[J]. ELECTRIC POWER CONSTRUCTION, 2021, 42(3): 54-60.

图/表 8

图1 配电网与配水网间耦合关系示意图

Fig.1 The interdependency between PDS and WDS

图2 分段线性化方法

Fig.2 Piecewise linearization method

图3 算法流程图

Fig.3 Algorithm flowchart

图4 配电网与配水网拓扑图

Fig.4 Topology of the PDS and WDS

图5 耦合模型恢复结果

Fig.5 Restoration result according to coupling model

表1 两种模型恢复结果

Table 1 Restoration result of two methods

图6 不同场景下两种模型目标函数值对比

Fig.6 Comparison of objective function value between two models under different scenarios

图7 水泵功率消耗对比

Fig.7 Comparison of pump power consumption

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计及供电-供水系统耦合关系的配电网故障恢复优化决策方法

Optimization Decision-Making Method for Distribution System Restoration Considering the Interdependency Between Power and Water Distribution Systems

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