摘要
提出了一种计及需求响应的电动汽车和可再生能源多阶段入网调度模型,首先通过分时电价机制引导用户合理用电,得出精确的用户负荷曲线;然后在车网互动阶段和风光消纳阶段,在以平滑系统负荷波动为目的的基础上,分别以车主用电成本最低和风、光发电消纳最大为目标,采用基于求取帕累托最优前沿的NSGA-II算法和模糊隶属函数对电动汽车充放电、风力发电和光伏发电出力进行优化;最后在火电机组调度出力阶段,以火电机组经济和环境成本最低为目标,对火电机组出力进行优化。算例结果表明:合理的分时电价机制能够改变车主的充放电行为和用户的用电行为,减小负荷峰谷差,提升风、光发电消纳能力,减小火电机组的总运行成本和污染物排放量。
This paper presents an related to demand response of electric vehicles and renewable energy multi stage grid dispatchingmodel.Firstly,adopting time-of-use price mechanism to guide the user using electricity reasonably to obtain accurate user load curve.Then in the vehicles gridinteracting stage and wind and photovoltaic consumptive scenery stage,for the purpose of smoothing system load fluctuation,respectively taking the owner of vehicles＇ lowest cost of using electricity,wind and photovoltaic power consumption as the goal,applying the NSGA-II algorithm to obtain the pareto optimal frontier and fuzzy membership function cope with the electric vehicles charging and discharging,wind power and photovoltaic power output.Finally,in the power generation dispatching stage,taking the thermal power units＇ economic and environmental costs as the goaloptimize the output of thermal power units.The simulation results show that the reasonable mechanism of time-of-use price can change the owner of the vehicles charging and discharging behavior and users＇ using electricity behavior,reducing the peak load,improving wind and photovoltaicpower consumptive capacity,reducing the total cost of operation and the pollutant emissions of thermal power units.
出处
《电网与清洁能源》
北大核心
2017年第9期104-112,共9页
Power System and Clean Energy
基金
教育部人文社会科学研究青年基金(15YJCZH147)
上海市社科规划一般课题(2015BGL002)~~
关键词
电动汽车
分时电价
风光消纳
NSGA-II
需求响应
electrical vehicles
time -of -use price
the consumption of wind and photovohaicpower
NSGA-II
demand response
