摘要
为研究光伏电源接入对系统关键线路辨识结果的影响,运用线路电气介数对电网中关键线路进行准确识别,通过三种攻击方式进行有效性校验;运用节点电气介数对系统关键节点的辨识结果选取不同情况的光伏电源接入点。以IEEE 39节点系统为例计算系统线路电气介数和节点电气介数,通过模拟光伏电源接入系统的不同情况研究光伏并网对线路辨识结果的影响。仿真结果表明,高电气介数线路通常处于重要输电位置,发生蓄意攻击时网络效能会急剧下降,这验证了电气介数的有效性;而光伏电源出力变化、接入系统的位置变化和系统光伏渗透率变化均对系统关键线路辨识结果产生不同程度的影响。
To study the influences of the system on the identification of key lines after being connected to photovoltaic power,the line electric betweenness is used to accurately identify the key lines in the grid,and three attack methods are used to verify the effectiveness.Taking the IEEE-39 system as an example to calculate the system line electric betweenness and node electric betweenness.The effects of photovoltaic grid connection on the line identification result are studied by simulating the different situations of the photovoltaic power connected to the system.The simulation results show that high electric betweenness lines are usually located at important transmission locations,and the network efficiency will decrease sharply when a deliberate attack occurs,which verifies the effectiveness of this method;while the output of photovoltaic power and the access position change,and the system photovoltaic permeability changes have different degrees of influence on the identification results of the system’s key lines.
作者
冯浩
李怀森
葛玉林
曹智阳
FENG Hao;LI Huai-sen;GE Yu-lin;CAO Zhi-yang(School of Electric Power Engineering,Nanjing Institute of Technology,Nanjing211167,China;CGN New Energy Investment(Shenzhen)Co.Ltd.,Jiangsu Branch,Nanjing210017,China)
出处
《电力学报》
2020年第3期200-208,共9页
Journal of Electric Power
基金
南京工程学院大学生科技创新基金挑战杯支撑项目(TZ20190008,TZ20200008)
关键词
光伏电源
复杂网络
关键线路辨识
电气介数
photovoltaic power supply
complex network
critical line identification
electrical interface
作者简介
通讯作者:冯浩(1995-),男,硕士研究生,主要研究方向为新能源并网系统稳定及控制,15151810589@163.com;李怀森(1990-),男,工程师,主要研究方向为新能源并网系统稳定及控制,lhs1990@126.com;葛玉林(1999-),男,本科生,主要研究方向为光伏发电并网系统稳定性,840254632@qq.com;曹智阳(2000-),男,本科生,主要研究方向为光伏发电并网系统稳定性,1784115395@qq.com
