储能科学与技术2024，Vol.13Issue(2)：526-535,10.DOI:10.19799/j.cnki.2095-4239.2023.0487
基于机会约束规划的含电动汽车市域铁路牵引供电系统优化运行
Optimal operation of urban railway traction power supply system with electric vehicles based on chance-constrained programming
唐兆祥 1许万涛 1邓昊 2卢文杰2
作者信息
- 1. 中车青岛四方机车车辆股份有限公司,山东 青岛 266000
- 2. 西南交通大学电气工程学院,四川 成都 611756
- 折叠
摘要
Abstract
The urban railway system provides convenient access to urban and suburban areas.The stations along the railway lines offer parking facilities for electric vehicles(EVs)with park-and-ride scheme and serve as a convenient interface for EVs to connect with the railway traction power system.To improve the utilization rate of regenerative braking energy in trains and reduce the operating cost of urban railways,this study proposes an optimal operation model for co-phase traction power substations in conjunction with EVs in urban rail.The primary objective of this model is to minimize the daily electricity cost of the traction substation(TS)by optimizing the charging and discharging strategy of EVs and ultracapacitors,as well as the power regulation strategy of the TS.To address the uncertainties associated with EV arrival time,departure time,and initial charge state,chance-constrained programming ensures that the EV charging scheme meets the driving requirements at a higher confidence level using probabilistic constraints than the predetermined confidence level of traditional deterministic constraints.The model is formulated as a mixed integer linear programming model by converting chance constraints into deterministic constraints using sample average approximation,and the model is subsequently solved using the CPLEX solver.Simulation analysis shows that the proposed model can effectively reduce the daily electricity cost of the TS by 20.37%,which reflects the feasibility of EVs in participating in the load regulation of the traction power supply system,thereby effectively improving the operating economy of the system.关键词
市域铁路/储能/电动汽车/同相牵引供电系统/机会约束规划Key words
urban rail/energy storage/electric vehicle/co-phase traction power supply system/chance-constrained programming分类
交通工程引用本文复制引用
唐兆祥,许万涛,邓昊,卢文杰..基于机会约束规划的含电动汽车市域铁路牵引供电系统优化运行[J].储能科学与技术,2024,13(2):526-535,10.
