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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
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作者单位:

1.国网天津市电力公司电力科学研究院;2.天津大学智能电网教育部重点实验室

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基金项目:

国家电网公司科技项目 KJ-19-1-55


Security Region for Smart Distribution System Considering Distributed Generator and Demand Response
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State Grid Tianjin Electric Power Research Institute

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    摘要:

    我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,本文考虑智能配电网的两个主要元素——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、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。本文提出的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、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 China urban power grid is evolving to smart distribution grid, of which the operating circumstance will be more complicated. Security region is a new method for the distribution system operating. This paper studies the smart distribution system security region (DSSR) from the view of user load, taking two main elements into account, which are distributed generation (DG) and demand response (DR). Firstly, it analyzes and formulates the characteristics of security operating for distribution systems with DG and DR then the DSSR with DG and DR is modeled. It observes the DSSR 2D sections on case grids and studies the mechanism of DG and DR on DSSR, based on which the guidance for the distribution system planning and operating is proposed. The DSSR in this paper is consistent with the usual practice of dispatchers and could be a useful tool of the security monitoring and analysis for urban power grids, in which the user load service is more important than the service of DG and DR.

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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. DOI:10.7500/AEPS20190617001.

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历史
  • 收稿日期:2019-06-17
  • 最后修改日期:2019-11-19
  • 录用日期:2019-09-09
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