摘要
针对含多个智能软开关(SOP)的有源配电网大面积停电场景下的重要负荷恢复问题,文中提出了两步式负荷恢复方法。首先,求解混合整数二阶锥规划(MISOCP)确定各时段最优恢复策略。然后,根据第2步所提出的恢复操作规则确定相邻时段间运行状态转化的开关操作次序和SOP的控制模式。其中,MISOCP以最大化加权负荷供电时间为目标,考虑了配电网、SOP与电源的运行约束等。恢复操作规则以尽可能快速优先恢复重要负荷供电为目标,根据第1步最优恢复策略与SOP在系统中的作用进行开关操作和SOP控制模式切换。算例测试采用改进的手拉手配电网进行对比验证,结果验证了所提两步式负荷恢复方法的有效性和优越性。
In the large-area blackout scenario,aiming at the critical load restoration problem for the active distribution network with multiple soft open points(SOPs),this paper proposes a two-step load restoration method.Firstly,a mixed-integer second-order cone program(MISOCP)is solved to determine the optimal restoration strategy in each period.Secondly,according to the recovery operation rule proposed in the second step,the switch operation sequence and SOP control mode of operation state transition between adjacent periods are determined.Among them,the MISOCP model aims to maximize the weighted load power supply time,which considers the operation constraints of the distribution network,SOP and power supply,etc.The restoration operation rule aims to restore the power supply of critical loads as quickly as possible.According to the first-step optimal recovery strategy and the role of the SOP in the system,switch operation and SOP control mode switching are carried out.In the case study,a hand-in-hand distribution network is used for comparison and verification.The results show the effectiveness and superiority of the proposed two-step load restoration method.
作者
王颖
马佳骏
王小君
许寅
和敬涵
李佳旭
WANG Ying;MA Jiajun;WANG Xiaojun;XU Yin;HE Jinghan;LI Jiaxu(School of Electrical Engineering,Beijing Jiaotong University,Beijing 100044,China)
出处
《电力系统自动化》
EI
CSCD
北大核心
2021年第8期104-111,共8页
Automation of Electric Power Systems
基金
中央高校基本科研业务费专项资金资助项目(2018JBZ004)
国家自然科学基金资助项目(51807004)
中国博士后科学基金资助项目(2020M680328)。
关键词
配电网
智能软开关
负荷恢复
分布式电源
distribution network
soft open point(SOP)
load restoration
distributed generator
作者简介
王颖(1992-),女,博士,讲师,主要研究方向:韧性电网、配电网故障恢复、电力交通融合等。E-mail:yingwang1992@bjtu.edu.cn;马佳骏(1995-),男,硕士研究生,主要研究方向:电力系统韧性、配电网故障恢复。E-mail:jiajunma@bjtu.edu.cn;通信作者:王小君(1978-),男,博士,副教授,博士生导师,主要研究方向:主动配电网运行优化与故障诊断、电能质量、综合能源系统优化运行、配电网/综合能源系统应急恢复等。E-mail:xjwang1@bjtu.edu.cn。
