动态电能质量实时监测系统的设计与实现  

Design and Implementation of Dynamic Power Quality Real-Time Monitoring System

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,上海市闵行区200240

出　　处：《电网技术》2011年第5期110-114,共5页Power System Technology

摘　　要：在动态电能质量监测系统中,较大区域电网动态参数实时联网监测以及瞬时电能事件发生时,历史数据的分析一直是便携式监测仪器难以突破的瓶颈,为此在虚拟仪器平台上将过程控制中的现场总线(process field bus,PROFIBUS)和实时控制系统相结合,设计了区域电网动态电能质量的多点实时监测系统,通过PROFIBUS网络的组态,实现了对闪变、电压跌落等动态电能质量参数的连续实时跟踪、数据传输、存储以及在线分析。最后在实验环境下对系统进行了测试,结果精度较高,可以满足对电网动态电能参数实时监测的要求。In dynamic power quality monitoring systems, the real-time networking monitoring of dynamic parameters of larger regional power network and the analysis on historical data during transient power incidents are bottleneck for portable monitoring instruments. For this reason, by means of integrating the process field bus （PROFIBUS） for procedure control with real-time control system on virtual instrument platform, a multi-point dynamic power quality real-time monitoring system is designed, and through the configuration of PROFIBUS network the real-time tracking, data transmission and storage as well as on-line analysis of dynamic power quality parameters such as voltage sag and voltage flicker are implemented. The designed system is tested in lab environment and testing results show that the monitored resuks are precise, thus the proposed system can meet the demand for dynamic real-time monitoring of power quality parameters of power network.

关 键 词：动态电能质量 实时系统 虚拟仪器 数据库 

分 类 号：TM93[电气工程—电力电子与电力传动]