摘要
电动换电重卡由于具有充电功率高、周期性强的循环换电负荷特性,一旦短时大量接入微电网中,将带来经济性和安全性的挑战。首先讨论电动汽车充电、循环换电负荷的不同特性,建立含循环换电负荷及充电站的微电网模型;提出一种综合考虑微电网经济性及联络线功率波动性的多目标调度优化方法;采用线性加权方法将多目标问题转化为单目标问题;最后利用CPLEX工具对仿真算例进行求解,仿真算例表明,所提优化方案可有效求解综合考虑不同权重下微电网净利润、联络线交换功率及换电站内电池最优调度问题,能在尽可能减小微电网与上级电网交换功率波动性的同时,使得微电网获得最大净利润。
Electric power exchange heavy trucks,due to the characteristics of cyclic power exchange loads with high charging power and strong cyclicity,will bring economic and security challenges once a large number of exchange heavy trucks are connected to the microgrid in a short period of time.Firstly,we discuss the different characteristics of electric vehicle charging and cyclic power swapping load,and established a microgrid model including cyclic power swapping load and charging station.Secondly,we propose a multi-objective scheduling optimization method that comprehensively takes the economics of the microgrid and the power fluctuation of the tie line into account.Thirdly,we use the linear weighting method to transform the multi-objective problem into a single-objective problem.Finally,the simulation example is solved by using CPLEX tool.The simulation example shows that the proposed optimization scheme can effectively solve the problem of the net profit of the microgrid,the exchange power of the tie line and the optimal scheduling of the batteries in the battery swap station under the comprehensive consideration of different weights.It is possible to reduce the fluctuation of the power exchanged between the microgrid and the upper-level grid,and make the microgrid obtain the maximum net profit at the same time.
作者
颜湘武
卢俊达
贾焦心
齐兵保
徐笑林
李昱臻
YAN Xiangwu;LU Junda;JIA Jiaoxin;QI Bingbao;XU Xiaolin;LI Yuzhen(Hebei Provincial Key Laboratory of Distributed Energy Storage and Microgrid(North China Electric Power University),Baoding 071003,China)
出处
《华北电力大学学报（自然科学版）》
CAS
北大核心
2024年第2期1-10,I0002,I0003,共12页
Journal of North China Electric Power University：Natural Science Edition
基金
河北省自然科学基金资助项目(E2018502134)
河北省电力有限公司科学技术项目(SGHEDK00JYJS210014)。
关键词
循环换电负荷
电动汽车充电站
微电网多目标优化调度
混合整数规划
CPLEX
cyclic swapping load
electric vehicle charging station
multi-objective optimization of microgrid
mixed integer linear programming
CPLEX
