电力能效测评系统中电压闪变检测的研究

Study on the detection of voltage flicker in energy efficiency evaluation system

针对电力能效测评系统中闪变数据的检测和传输方法实时性差的问题,设计了一种无线通信的闪变监测系统。基于国际电工委员会(IEC)推荐的平方检测法,WJZ-VI型电能监测仪实现监测点数据实时采集处理。根据现场要求,采用GPRS技术进行实时数据无线传输。搭建了Simulink仿真模型,仿真得到S(t)值达到了IEC相关标准。研究结果表明,该闪变监测系统能够有效的并入电力能效测评系统中,实时采集、处理以及无线传输闪变数据,从而为后期的闪变控制及故障检测提供技术保障,有较大的推广应用价值。

Aiming at the bad real-time function of flicker data＇s detection and transmission in the energy efficiency evaluation system,a radio communication system of flicker monitoring was designed. According to the method recommended by international electric commission （IEC）, WJZ-VI power monitor can collect and process real-time data. In accordance with requirements of working sites, GPRS was used to complete the data＇s radio transmission. The simulation model was established using the Matlab/Simulink software, which was up to the IEC standard according to the result of simulation. The results indicate that the monitor system can be effectively incorporated into the energy efficiency evaluation system,which can collect, process and transmit real-time data. And this system can provide technical support for the control of flicker,which has great application value.