预防光伏并网发电系统火灾的主动移频式孤岛检测技术研究  

Research on Active Frequency Drift with Disturbance of the Cycle for Islanding Detection of PV Grid-connected Power System Fires

作　　者：景敏 韩丽琼 JING Min;HAN Liqiong(China Fire and Rescue Institute,Beijing 102202,China)

机构地区：[1]中国消防救援学院,北京102202

出　　处：《武警学院学报》2021年第6期11-15,20,共6页Journal of the Armed Police Academy

摘　　要：针对光伏并网发电系统孤岛效应潜在电气火灾风险的问题,运用Matlab/Simulink软件对孤岛效应进行了仿真。基于容性负载和感性负载两种情况,应用在一个电网电压周期时加入扰动的主动移频式孤岛检测方法对孤岛效应进行了仿真检测和分析。结果表明,从检测断网后公共耦合点电压及其频率两个参数出发,该方法成功检测到孤岛效应的发生,是光伏并网发电系统孤岛效应导致电气故障着火预防的有效技术手段。For the potential fire risk of PV grid-connected power system’s islanding effect,the system’s islanding effect simulation model is established with the use of Matlab/Simulink.Based on capacitive load and inductive load,this paper adopts an active frequency drift with fixed disturbance of one cycle for the detection and analysis of islanding effect simulation.By detecting PCC voltage and PCC voltage frequency,the results show that islanding effect can be accurately detected and it is an effective method to prevent PV grid-connected power system fires.

关 键 词：光伏并网发电系统 孤岛检测 固定扰动 主动移频式 电气火灾 

分 类 号：TM615[电气工程—电力系统及自动化] TU998.1[建筑科学—市政工程]