基于电力线通信的光伏电站漏电监测系统设计  

Design of leakage monitoring system for photovoltaic power station based on power line communication

作　　者：谢志远[1] 陈楠[1] 张冬祺 

机构地区：[1]华北电力大学(保定)电子与通信工程系,河北保定071003

出　　处：《电子技术应用》2018年第3期40-42,46,共4页Application of Electronic Technique

基　　金：国家自然科学基金(61172075)

摘　　要：分布式光伏电站线路绝缘漏电故障一直是光伏电站的技术难点,尤其是从光伏电池阵列到并网逆变器的各个环节中,布线复杂,环境恶劣。针对传统监测技术的弊端,提出了一种基于电力线通信的分布式漏电监测系统。系统采用电力线通信技术结合传感器技术的方式,完成了采集节点和中央监测终端软硬件的设计与优化,实现了对采集点漏电流数据的收集和传输,并对系统进行了不同温度条件下的准确率的测试。通过实验验证,系统的可靠性均在97%以上,能有效地监测分布式光伏电站的漏电情况。The fault of insulation leakage of distributed photovoltaic power station is always the technical difficulty of photovoltaic power station. Especially in every link from the photovoltaic cell array to the grid-connected inverter, the wiring is complicated and the environment is bad. In view of the disadvantages of traditional monitoring technology, a distributed leakage monitoring system based on power line communication is proposed. The system combines the power line communication technology with the sensor technology. The design and optimization of the hardware and software of the acquisition node and the central monitoring terminal are completed. The data collection and transmission of collecting point leakage current are realized. The system is tested with different temperature conditions. Through experimental verification, the reliability of the system is above 97 %, which can effectively monitor the leakage of distributed photovoltaic power station.

关 键 词：漏电监测 分布式光伏发电站 电力线通信 传感器技术 

分 类 号：TN913.6[电子电信—通信与信息系统]