基于DSP的电压闪变仪的开发  

Development of a voltage flickermeter based on DSP

作　　者：袁世英[1] 曹晖[1] 

机构地区：[1]华东交通大学,江西南昌330006

出　　处：《继电器》2005年第4期57-59,70,共4页Relay

摘　　要：电压闪变是反映电能质量状况的重要指标,由于电压闪变的测量比较复杂,国际电工委员会(IEC)专门提供了测量模型。论文对IEC的闪变测量模型进行分析,提出了数字化测量电压闪变的方法。通过采用TI公司的TMS320系列DSP芯片和多通道数据转换器,设计出可同时测量8路电压信号的电压闪变测量仪。它充分利用DSP芯片运算速度快和专用指令的优点来计算电压闪变值。最后通过仿真和实际测量,证明数字化测量电压闪变是完全可行的。Voltage flicker is an important parameter to evaluate the power quality. As the measurement of voltage flicker is very complicated, IEC has put forward a model to solve this problem. With the analysis of this flicker model, a digital method to measure the voltage flicker is proposed. Using DSP chip of TMS320 series and multi-channel data-acquisition system,a flickermeter which can simultaneously measure eight channels voltage is designed. This flickermeter fully uses the advantages of this DSP chip such as fast calculation and special instructions, to calculate voltage flicker. The results of simulation and test show that this digital voltage flicker measurement is feasible.

关 键 词：电压闪变 数字化 数字信号处理器 数字滤波器 

分 类 号：TM933[电气工程—电力电子与电力传动]