考虑柔性资源灵活支撑的电网有功/无功优化调度  

Active/Reactive Optimized Power Scheduling of Power Grids Considering Flexible Resource Support

作　　者：张海涛 李文娟 李雪峰 谢长青 朱其虎 向春勇 蔡昌春[2] Zhang Haitao;Li Wenjuan;Li Xuefeng;Xie Changqing;Zhu Qihu;Xiang Chunyong;Cai Changchun(Lincang Power Supply Company,Yunnan Power Grid Co.,Ltd.,Lincang Yunnan 677000,China;Jiangsu Key Laboratory of Power Transmission&Distribution Equipment Technology(Hohai University),Changzhou Jiangsu 213022,China)

机构地区：[1]云南电网有限责任公司临沧供电局,云南临沧677000 [2]江苏省输配电装备技术重点实验室(河海大学),江苏常州213022

出　　处：《电气自动化》2024年第1期52-55,59,共5页Electrical Automation

基　　金：云南电网有限责任公司科技项目(YNKJXM20220039)。

摘　　要：电气化交通是交通电力耦合的重要场景,大规模电动汽车接入对于电力系统的有功/无功调度具有重要影响。提出了一种考虑电动汽车有序充电无功支撑的配电网有功/无功优化方法。首先,基于电动汽车充电特性,建立电动汽车有序充电功率控制模型,实现电动汽车并网接入的有序充电控制;其次,构建结合用户侧和电网侧因素的电动汽车有序充电无功支撑双层优化模型,实现电动汽车与电网间的有功/无功功率交互;最后,通过仿真验证所提方法的合理性和可靠性。通过控制电动汽车有序充电的功率因素,能够大幅降低用户侧充电支出,同时还能有效改善电网负荷波动和降低网络损耗,为解决电动汽车大规模接入电网问题提供新思路。Electrified transportation is an important scenario for the coupling of transportation and electricity,and the large-scale access of electric vehicles has a significant impact on the active/reactive power scheduling of the power system.A distribution network active/reactive power optimization method considering the orderly charging and reactive power support of electric vehicles was proposed.Firstly,based on the charging characteristics of electric vehicles,a power control model for orderly charging of electric vehicles was established to achieve orderly charging control for grid connection of electric vehicles;secondly,a two-layer optimization model was constructed for orderly charging and reactive power support of electric vehicles that combines factors of user side and grid side,to achieve active/reactive power interaction between electric vehicles and the grid;finally,the rationality and reliability of the proposed method were verified through simulation.By controlling the power factor of orderly charging of electric vehicles,it can significantly reduce charging expenses at user side,while also effectively improving grid load fluctuations and reducing network losses,providing new ideas for solving the problem of large-scale connection of electric vehicles to the grid.

关 键 词：灵活资源 电动汽车 功率因素 有功/无功优化 调度策略 

分 类 号：TM761[电气工程—电力系统及自动化]