光伏不平衡接入的配电系统中电动汽车有序充电策略

doi:10.3969/j.issn.1000-7229.2018.06.004

摘要/Abstract

摘要： 摘要：电动汽车和分布式光伏电源的广泛接入可能会加剧配电系统的负荷峰谷差和三相不平衡问题。在此背景下, 探讨以优化负荷轮廓和减小配电系统三相不平衡为目标的电动汽车有序充电策略。首先, 根据汽车出行特性和电池充电过程, 对充电负荷进行建模。之后, 在配电系统三相模型基础上，通过控制电动汽车充电接入相、充电功率和充电时间, 建立以优化负荷轮廓和减小三相不平衡为目标的电动汽车有序充电优化模型, 并采用自适应遗传算法求解。最后, 以修改的IEEE 33节点测试系统为例对所提方法进行仿真计算，结果表明：采用所提方法，电动汽车充电负荷可避开系统负荷高峰并起到“填谷”作用, 并有效缓解了分布式光伏发电引起的三相功率不平衡问题。

关键词:

Abstract: ABSTRACT： Extensive integration of electric vehicles （EVs） and distributed photovoltaic （PV） units will probably deteriorate the three-phase imbalance problem in the distribution system. A coordinated charging strategy is presented for EVs in the distribution system with unbalanced three-phase PV power inputs. First, the charging load is modeled on the basis of the travel behavior and charging characteristic of EVs. Then, on the basis of the three-phase power flow model of distribution system, an EV coordinated charging strategy is proposed with the objectives to optimize the daily load profile and to minimize the three-phase imbalance degree in the distribution system. Relevant decision variables include the charging phase, charging power and charging time of EVs. The formulated optimization model is solved by using the adaptive genetic algorithm. Finally, a modified IEEE 33-bus distribution system is employed to demonstrate the proposed method.

Key words: KEYWORDS： distribution system, electric vehicle （EV）, distributed photovoltaic （PV） unit, load profile, three-phase imbalance, coordinated charging, adaptive genetic algorithm

中图分类号:

刘洵源, 齐峰, 文福拴, 冯昌森, 王蕾，邹波，张西竹. 光伏不平衡接入的配电系统中电动汽车有序充电策略[J]. 电力建设, 2018, 39(6): 21-.

LIU Xunyuan, QI Feng, WEN Fushuan, FENG Changsen, WANG Lei, ZOU Bo, ZHANG Xizhu.

A Coordinated Charging Strategy for Electric Vehicles in a Distribution System with Unbalanced Three-phase Photovoltaic Power Inputs[J]. Electric Power Construction, 2018, 39(6): 21-.

参考文献

［1］王守相, 孙智卿, 刘喆. 面向智能用电的家庭能量协同调度策略［J］. 电力系统自动化, 2015, 39（17）: 108-113.

WANG Shouxiang, SUN Zhiqing, LIU Zhe. Co-scheduling strategy of home energy for smart power utilization ［J］. Automation of Electric Power Systems, 2015, 39（17）: 108-113.

［2］刘一兵, 吴文传, 张伯明, 等. 基于有功-无功协调优化的主动配电网过电压预防控制方法［J］. 电力系统自动化, 2014, 38（9）: 184-191.

LIU Yibing, WU Wenchuan, ZHANG Boming, et al. Overvoltage preventive control method based on active and reactive power coordinated optimization in active distribution network ［J］. Automation of Electric Power Systems, 2014, 38（9）: 184-191.

［3］ALAM M J E, MUTTAQI K M, SUTANTO D.A three-phase power flow approach for integrated 3-wire MV and 4-wire multigrounded LV networks with rooftop solar PV ［J］. IEEE Transactions on Power Systems, 2013, 28（2）: 1728-1737.

［4］丁明, 吴兴龙, 陆巍, 等. 含多个不对称光伏并网系统的配电网三相随机潮流计算［J］. 电力系统自动化, 2012, 36（16）: 47-52.

DING Ming, WU Xinglong, LU Wei, et al. Three-phase probabilistic power flow calculation in distribution systems with multiple unsymmetrical grid-connected photovoltaic systems ［J］. Automation of Electric Power Systems, 2012, 36（16）: 47-52.

［5］赵俊华, 文福拴, 杨爱民, 等. 电动汽车对电力系统的影响及其调度与控制问题［J］. 电力系统自动化, 2011, 35（14）: 2-10.

ZHAO Junhua, WEN Fushuan, YANG Aimin, et al. Impacts of electric vehicles on power systems as well as the associated dispatching and control problem ［J］. Automation of Electric Power Systems, 2011, 35（14）: 2-10.

［6］王贵斌, 赵俊华, 文福拴, 等. 配电系统中电动汽车与可再生能源的随机协同调度［J］. 电力系统自动化, 2012, 36（19）: 22-29.

WANG Guibin, ZHAO Junhua, WEN Fushuan, et al. Stochastic optimization dispatching of plug-in hybrid electric vehicles in coordination with renewable generation in distribution systems ［J］. Automation of Electric Power Systems, 2012, 36（19）: 22-29.

［7］刘祚宇, 齐峰, 文福拴, 等. 含电动汽车虚拟电厂参与碳交易时的经济与环境调度［J］. 电力建设, 2017, 38（9）: 45-52.

LIU Zuoyu, QI Feng, WEN Fushuan, et al. Economic and environmental dispatching in electric vehicles embedded virtual power plants with participation in carbon trading ［J］. Electric Power Construction, 2017, 38（9）: 45-52.

［8］中华人民共和国国务院. 节能与新能源汽车产业发展规划（2012—2020年）［EB/OL］. ［2017-03-13］. http://news.xinhuanet.com/politics/2012-07/09/c_123389205.htm.

［9］GREEN R C, WANG L, ALAM M. The impact of plug-in hybrid electric vehicles on distribution networks: a review and outlook ［J］. Renewable and Sustainable Energy Reviews, 2011, 15（1）: 544-553.

［10］姚伟锋, 赵俊华, 文福拴, 等. 基于双层优化的电动汽车充放电调度策略［J］. 电力系统自动化, 2012, 36（11）: 30-37.

YAO Weifeng, ZHAO Junhua, WEN Fushuan, et al. A charging and discharging dispatching strategy for electric vehicles based on bi-level optimization ［J］. Automation of Electric Power Systems, 2012, 36（11）: 30-37.

［11］占恺峤, 胡泽春, 宋永华, 等. 考虑三相负荷平衡的电动汽车有序充电策略［J］. 电力系统自动化, 2015, 39（17）: 201-207.

ZHAN Kaiqiao, HU Zechun, SONG Yonghua, et al. A coordinated charging strategy for electric vehicle three-phase load balance ［J］. Automation of Electric Power Systems, 2015, 39（17）: 201-207.

［12］韩海英, 和敬涵, 王小君, 等. 基于改进粒子群算法的电动汽车参与负荷平抑策略［J］. 电网技术, 2011, 35（10）: 165-169.

HAN Haiying, HE Jinghan, WANG Xiaojun, et al. An improved particle swarm optimization-based load response strategy with participation of vehicle to grid ［J］. Power System Technology, 2011, 35（10）: 165-169.

［13］占恺峤, 宋永华, 胡泽春, 等. 以降损为目标的电动汽车有序充电优化［J］. 中国电机工程学报, 2012, 32（31）: 11-18.

ZHAN Kaiqiao, SONG Yonghua, HU Zechun, et al. Coordination of electric vehicles charging to minimize active power losses ［J］. Proceedings of the CSEE, 2012, 32（31）: 11-18.

［14］李惠玲, 白晓民. 电动汽车充电对配电网的影响及对策［J］. 电力系统自动化, 2011, 35（17）: 38-43.

LI Huiling, BAI Xiaomin. Impacts of electric vehicles charging on distribution grid ［J］. Automation of Electric Power Systems, 2011, 35（17）: 38-43.

［15］刘利兵, 刘天琪, 张涛, 等. 计及电池动态损耗的电动汽车有序充放电策略优化［J］. 电力系统自动化, 2016, 40（5）: 83-90.

LIU Libing, LIU Tianqi, ZHANG Tao, et al. Orderly charging and discharging strategy optimization for electric vehicles considering dynamic battery-wear model ［J］. Automation of Electric Power Systems, 2016, 40（5）: 83-90.

［16］YAO Weifeng, ZHAO Junhua, WEN Fushuan, et al. A hierarchical decomposition approach for coordinated dispatch of plug-in electric vehicles ［J］. IEEE Transactions on Power Systems, 2013, 28（3）: 2768-2778.

［17］FRANCO J F, RIDER M J, ROMERO R. A mixed-integer linear programming model for the electric vehicle charging coordination problem in unbalanced electrical distribution systems ［J］. IEEE Transactions on Smart Grid, 2015, 6（5）: 2200-2210.

［18］郭建龙, 文福拴, 袁军, 等. 电动汽车充电站在配电系统中电气接入点的最优选择［J］. 电力建设, 2017, 38（1）: 1-7.

GUO Jianlong, WEN Fushuan, YUAN Jun, et al. Optimal selection of electrical connecting nodes of electric vehicle charging stations in distribution systems ［J］. Electric Power Construction, 2017, 38（1）: 1-7.

［19］廖斌杰, 杨俊, 文福拴, 等. 电动出租车充电负荷的时空随机分布特性［J］. 电力建设, 2017, 38（1）: 8-16.

LIAO Binjie, YANG Jun, WEN Fushuan, et al. Temporal and spatial stochastic distribution characteristics of charging loads of electric taxis ［J］. Electric Power Construction, 2017, 38（1）: 8-16.

［20］MA Y, HOUGHTON T, CRUDEN A, et al. Modeling the benefits of vehicle-to-grid technology to a power system ［J］. IEEE Transactions on Power Systems, 2012, 27（2）: 1012-1020.

［21］张良, 严正, 冯冬涵, 等. 采用两阶段优化模型的电动汽车充电站内有序充电策略［J］. 电网技术, 2014, 38（4）: 967-973.

ZHANG Liang, YAN Zheng, FENG Donghan, et al. Two-stage optimization model based coordinated charging for EV charging station ［J］. Power System Technology, 2014, 38（4）: 967-973.

［22］胡银全, 刘和平, 刘平, 等. 电动汽车磷酸铁锂电池充电特性的分析［J］. 汽车工程, 2013, 35（4）: 293-297.

HU Yinquan, LIU Heping, LIU Ping, et al. An analysis on the charging characteristics of lithium iron phosphate batteries for electric vehicles ［J］. Automotive Engineering, 2013, 35（4）: 293-297.

［23］国家电网公司. 电动汽车交流充电桩技术条件: Q/GDW 1485—2014［S］.

State Grid Corporation of China. Technical specification for electric vehicle AC charging spot: Q/GDW 1485—2014［S］.

［24］陈长征, 王楠. 遗传算法中交叉和变异概率选择的自适应方法及作用机理［J］. 控制理论与应用, 2002, 19（1）: 41-43.

CHEN Changzheng, WANG Nan. Adaptive selection of crossover and mutation probability of genetic algorithm and its mechanism ［J］. Control Theory and Applications, 2002, 19（1）: 41-43.

［25］车仁飞, 李仁俊. 一种少环配电网三相潮流计算新方法［J］. 中国电机工程学报, 2003, 23（1）: 74-79.

CHE Renfei, LI Renjun. A new three-phase power flow method for weakly meshed distribution systems ［J］. Proceedings of the CSEE, 2003, 23（1）: 74-79.

［26］任洲洋, 颜伟, 项波, 等. 考虑光伏和负荷相关性的概率潮流计算［J］. 电工技术学报, 2015, 30（24）: 181-187.

REN Zhouyang, YAN Wei, XIANG Bo, et al. Probabilistic power flow analysis incorporating the correlations between PV power outputs and loads ［J］. Transactions of China Electrotechnical Society, 2015, 30（24）: 181-187.

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