多元用电需求网格分析与“源网荷储”分层分区平衡模型  

Diversified power demand block analysis and“source⁃network⁃load⁃storage”hierarchical partition balance model

作　　者：杜佩仁[1] 文福拴[1] 刘艳茹 张林垚 DU Peiren;WEN Fushuan;LIU Yanru;ZHANG Linyao(College of Electrical Engineering,Zhejiang University,Hangzhou 310027,China;State Grid Economic and Technological Research Institute Co.,Ltd.,Beijing 102209,China;Economic and Technological Research Institute,State Grid Fujian Electric Power Co.,Ltd.,Fuzhou 350012,China)

机构地区：[1]浙江大学电气工程学院,杭州310027 [2]国网经济技术研究院有限公司,北京102209 [3]国网福建省电力有限公司经济技术研究院,福州350012

出　　处：《电力需求侧管理》2021年第1期5-10,42,共7页Power Demand Side Management

基　　金：国家电网公司总部科技项目(5102-201956307A-0-0-00)。

摘　　要：随着分布式发电渗透率的不断提高,电力系统综合运行效率不高、“源网荷储”各环节协调不够、各类电源互补互济不足等问题逐步显现。对“源网荷储”进行分层分区平衡有助于解决这些问题。在此背景下,采用配电系统网格化规划方法,按照并网型微电网运行规则,提出面向网格的多元化用电需求分析方法和“源网荷储”分层分区平衡模型,以及配电系统网架优化设计内容。所提方法已被应用于实际系统规划,实践结果表明所提方法可有效降低用户的最大负荷需求、改善系统整体负荷轮廓、提高线路负载率、降低电网投资规模,有助于实现源网荷储各环节协调发展,从而提升电力系统运行的安全性和经济性。With the constantly increasing penetration of dis⁃tributed generation,some problems such as the low comprehensive operation efficiency of the power system concerned,insufficient co⁃ordination among the so⁃called“source⁃network⁃load⁃storage”,and inadequate complementarity among various types of generators are becoming more and more significant.Implementing hierarchical partition balance of“source⁃network⁃load⁃storage”could address these problems.Under this background,according to the operation rules of a grid⁃connected microgrid,a diversified power demand block analysis method and a“source⁃network⁃load⁃storage”hierar⁃chical partition balance model are presented,and related optimal design of the distribution network concerned addressed.The pro⁃posed method has been employed for actual distribution system planning,and the implementation results demonstrate that this method can effectively reduce the maximum load demand,improve the load profile of the whole system and the load rates of lines,re⁃duce the scale of required network investment,realize coordinated development of“source⁃network⁃load⁃storage”,and finally im⁃prove the security and economics of the distribution system.

关 键 词：微电网 源网荷储一体化 多元化用电需求 分层分区平衡 配电系统网格化规划 

分 类 号：TM714[电气工程—电力系统及自动化]