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计及分布式电源与需求响应的智能配电系统安全域
作者:
作者单位:

1.智能电网教育部重点实验室(天津大学),天津市 300072;2.国网天津市电力公司电力科学研究院,天津市 300384

作者简介:

祖国强(1989—),男,博士,工程师,主要研究方向:智能配电系统运行与规划、配电网管理与状态评价。E-mail:zuguoqiang_tju@163.com
肖峻(1971—),男,通信作者,博士,教授,主要研究方向:智能配电系统运行与规划、分布式电源与微网。E-mail:xiaojun@tju.edu.cn
穆云飞(1984—),男,博士,副教授,主要研究方向:电力系统安全性与稳定性、综合能源集成与应用。

通讯作者:

肖峻(1971—),男,通信作者,博士,教授,主要研究方向:智能配电系统运行与规划、分布式电源与微网。E-mail:xiaojun@tju.edu.cn

基金项目:

国家电网公司科技项目(KJ-19-1-55);国家重点研发计划资助项目(2016YFB0900100);国家自然科学基金面上项目(51877144)。


Security Region for Smart Distribution System Considering Distributed Generator and Demand Response
Author:
Affiliation:

1.Key Laboratory of the Ministry of Education on Smart Power Grids (Tianjin University), Tianjin 300072, China;2.Electric Power Research Institute of State Grid Tianjin Electric Power Company, Tianjin 300384, China

Fund Project:

This work is supported by State Grid Corporation of China (No. KJ-19-1-55), National Key R&D Program of China (No. 2016YFB0900100) and National Natural Science Foundation of China (No. 51877144).

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    摘要:

    中国城市电网正逐步发展为智能配电网,系统运行环境将更为复杂。配电系统安全域(DSSR)是指导配电网安全运行的新理论,文中考虑智能配电网的2个主要元素——分布式电源(DG)和需求响应(DR),从传统的负荷视角研究DSSR。首先,分析含DG和DR的配电系统安全性特点,给出相应的数学表达式,然后建立考虑DG和DR的DSSR数学模型。其次,通过观测算例电网的DSSR的二维截面图像,分析DG和DR对DSSR的作用机理,并基于此给出系统规划运行的指导建议。提出的DSSR的负荷视角与现有调度人员习惯一致,对于仍以负荷供电为主、以DG和DR服务为辅的城市配电网,可作为实用的安全运行分析工具。

    Abstract:

    The urban power grid of China is evolving to smart distribution network progressively, of which the operation circumstance will be more complicated. Distribution system security region (DSSR) is a new concept for guiding the safety operation of distribution system. This paper studies the smart DSSR from the traditional view of load, taking two main elements of smart distribution system into account: distributed generator (DG) and demand response (DR). Firstly, the characteristics of security for distribution systems with DG and DR is analyzed. Then the mathematic model of DSSR with DG and DR is built. Secondly, the effect mechanism of DG and DR on DSSR is studied by observing the diagram of two-dimensional sections for DSSR of the case, and based on which the guidance for planning and operating the system is proposed. The view of the load for proposed DSSR in this paper is consistent with the usual practice of dispatchers and can be a useful analysis tool of real-time security operation for urban distribution network, which gives first place to load supply and give second place to DG and DR service.

    表 3 DR场景描述与削减负荷系数Table 3 Scenario description of DR and load shedding coefficient
    表 2 算例1中DSSR边界表达式Table 2 Boundary equations of DSSR in case 1
    表 4 Table 4
    表 6 Table 6
    表 1 算例1中不同场景下的DG类型Table 1 Different types of DGs in different scenarios in case 1
    表 5 Table 5
    图1 含DG配电网算例示意图Fig.1 Schematic diagram of distribution network case with DG
    图1 含DG配电网算例示意图Fig.1 Schematic diagram of case of distribution network with DG
    图2 不同场景下含DG的N-0域二维截面Fig.2 Two-dimensional section with DG in N-0 region for different scenarios
    图3 不同场景下含DG的N-1域二维截面Fig.3 Two-dimensional section with DG in N-1 region for different scenarios
    图4 不同场景下含DR的DSSR二维截面Fig.4 Two-dimensional section of DSSR with DR in different scenarios
    图5 含DG和DR的DSSR二维截面Fig.5 Two-dimensional section of DSSR with DG and DR
    图 含DR配电网算例示意图Fig. The distribution network case grid with DR
    图 含DR的DSSR斜边斜率含义Fig. The meaning of the slope for DSSR boundary in the case grid with DR
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引用本文

祖国强,肖峻,穆云飞,等.计及分布式电源与需求响应的智能配电系统安全域[J].电力系统自动化,2020,44(8):100-107. DOI:10.7500/AEPS20190617001.
ZU Guoqiang,XIAO Jun,MU Yunfei,et al.Security Region for Smart Distribution System Considering Distributed Generator and Demand Response[J].Automation of Electric Power Systems,2020,44(8):100-107. DOI:10.7500/AEPS20190617001.

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历史
  • 收稿日期:2019-06-17
  • 最后修改日期:2019-08-18
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  • 在线发布日期: 2020-04-23
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