公交枢纽灵活性赋能的高可靠城市配电网多层协同优化规划方法  

Multi-layer Collaborative Optimization Approach for Highly Reliable Urban Distribution System Planning Empowered by Public Transport Hub Flexibilities

作　　者：曾博 罗旸凡 周吟雨 吴晨 刘一贤 ZENG Bo;LUO Yangfan;ZHOU Yinyu;WU Chen;LIU Yixian(State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources(North China Electric Power University),Changping District,Beijing 102206,China)

机构地区：[1]新能源电力系统国家重点实验室(华北电力大学),北京市昌平区102206

出　　处：《中国电机工程学报》2023年第18期7061-7078,共18页Proceedings of the CSEE

基　　金：国家重点研发计划项目(2021YFB2400700);国家自然科学基金项目(52177082);中央高校基本科研业务费专项资金项目(2022JG005)。

摘　　要：作为城市交通基础设施的重要组成部分,公交枢纽(public transport hub,PTH)是城市能源和交通系统的耦合汇聚节点。如何实现PTH和城市配电系统的有机协调发展,在满足公交服务需求的前提下,尽可能地降低电动公交负荷并网的负面影响,并利用其运行灵活性促进电力系统提质增效,已成为未来城市规划的重要课题。为此,该文在深入分析PTH与配电网交互机理的基础上,分别考虑正常和故障情况下PTH参与电网侧需求响应的贡献,提出一种面向PTH灵活性赋能的高可靠性城市配电网多层协同规划方法。模型以系统投资运维总成本最小化为目标,综合考虑电力-交通系统运行和供电可靠性/公交服务质量等多域约束,通过对PTH选址定容、配电线路/变压器扩容以及正常/故障多模场景下系统运营策略进行协同优化,以实现PTH灵活性资源的高效利用和配电系统的可靠经济运行。根据模型中多元场景密切耦合的特点,提出多层Benders分解方法将其等效转化为上层(投资主问题)、中层(正常运行子问题)、下层(故障运行子问题)的三层迭代模型,实现精确高效求解。最后,以修改的IEEE-33节点配电网和北京四惠公交枢纽的实际数据为例,验证了所提模型和方法的有效性。Public transport hub(PTH)is an important urban transport infrastructure and also the coupling node of urban energy-transport system.How to realize the coordinated development of PTHs and urban distribution systems,reduce the negative impact of electric bus load,and harness operational flexibility to promote the quality and efficiency improvement of power system has become an important issue.In this paper,considering the contribution of PTH’s demand response under normal and contingency conditions respectively,a multi-layer collaborative planning approach for highly reliable urban distribution system empowered by PTH flexibilities is proposed.Incorporating multi-domain constraints,the model optimizes PTH location/configuration,distribution system expansion and multi-mode operation,realizing efficient utilization of PTH flexibilities and reliable/economical operation of the distribution system.A multi-layer Benders decomposition method is proposed to transform it into a three-layer iterative model to achieve accurate and efficient solution.Finally,with the modified IEEE 33-bus distribution system and actual data of Sihui PTH,the effectiveness of proposed model and approach is verified.

关 键 词：公交枢纽 城市配电网 协同规划 灵活性 可靠性 多层优化 

分 类 号：TM715[电气工程—电力系统及自动化]