为了实时监测不同规模大小的电力系统上的电能质量,设计了一种可扩展的在线电能质量监测系统.该系统基于模块化的设计思想,将传统的电能监测系统划分为电流检测模块、电压检测模块和主控制模块,实际应用中可以根据所要监测的电力系统的规模大小灵活配置多个电流电压检测模块来同时监测不同通道上电能质量情况,并能够通过与远程主机实现通信,实现历史数据维护和数据分析,很好地满足了现代电能监测系统网络化,实时性和灵活性的要求.%In order to monitor and analyze power quality of electricity grid on different scale in real-time, this paper proposed a on-line monitoring system for power quality. The system was designed according to methodology of modularization. There are three function modules: electric current detection board, electric voltage detection board and main control board. All the modules can be connected conveniently so that users can configure the modules as much as electricity grid needs according to the scale. On the other hand,the main control board can analyze historical data and communicate with remote host.
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