基于Profibus的电能质量实时监测系统设计  

Real-time power quality monitoring system based on Profibus

作　　者：焦东升[1] 陆冬良[1] 应俊豪[1] 张秀彬[1] 

机构地区：[1]上海交通大学电子信息与电气工程学院,上海200240

出　　处：《电力自动化设备》2011年第5期117-121,共5页Electric Power Automation Equipment

摘　　要：针对电能质量监测系统中对电网数据采集量大,传统监测仪器难以实时处理,以及很难监测到高频信号变化的情况,提出在虚拟仪器平台上将过程控制中的现场总线(Profibus)和实时操作系统(RTOS)相结合,设计了基于现场总线的区域电网电能质量多点实时监测系统,并提出了测量点的优化算法和实现方法,即利用覆盖矩阵快速定位事故发生点,极大地减少区域电网的测量点数目,避免了冗余数据的重复测量,控制速率提高到10 K以上,实现了电能质量监测的智能化和网络化。A multi-point real-time power quality monitoring system is designed for regional power grid,which integrates the process field bus and the real-time operating system on virtual instrument platform to handle the massive grid data and acquire the high-frequency signal change.The optimal measuring point algorithm is proposed,which applies the covering matrix to quickly locate the fault point for reducing the amount of measuring points and improving the monitoring efficiency to more than 10 K.The intelligent power quality monitoring network is realized.

关 键 词：电能质量 PROFIBUS 实时系统 LABVIEW 数据库 

分 类 号：TM712[电气工程—电力系统及自动化]