摘要
随着可再生能源、储能在配电网中的应用越来越广泛,亟需开展计及源端、荷端不确定性的配电网扩展规划研究。在此背景下,提出包含三级层次的配电网扩展规划流程和配电网扩展规划随机期望值模型。首先建立以综合新建成本为优化目标,连通性、可靠性、潮流限制等为约束条件的网架扩展规划模型,确定规划新建站点的接入方案和储能配置容量;其次构建运行优化模型,计算正常运行方式下合理的开关组合;最后采取针对性的局部补强措施,结合实际算例系统验证模型的有效性。
With the increasing application of renewable energy and energy storage in the distribution network, there is an urgent need to carry out research on the expansion planning of the distribution network that takes into account the uncertainties of the source and load ends. This paper proposes a three-level distribution network expansion planning process and a random expected value model for distribution network expansion planning. Firstly, a network framework expansion planning model is established with comprehensive new cost as the optimization goal, connectivity, reliability, and power flow restrictions as constraints. As a result, the planned access plan and energy storage configuration capacity for the new site are determined. Secondly, the operation optimization model is established to calculate reasonable switch combination in normal operation mode. Finally partial reinforcement measures are adopted to improve system reliability. The validity of the model is verified in a practical system example.
作者
蔡佳铭
祝燕萍
刘波
CAI Jiaming;ZHU Yanping;LIU Bo(Shanghai Electric Power Design Institute Co.,Ltd.,Energy(Power Grid)Planning Center,Shanghai 200001,China;State Grid Fengxian Electric Power Supply Company,Shanghai 201499,China)
出处
《电力科学与技术学报》
CAS
北大核心
2021年第3期67-75,共9页
Journal of Electric Power Science And Technology
基金
国网上海市电力有限公司项目(B309231800J6)。
关键词
源网荷协调
重过载
优化
扩展规划
coordination of source-network-load
overload
optimization
expansion planning
