基于DSP的三相交流采样在线测试仪  

The online detector of three-phase AC sampling based on DSP

作　　者：张先庭[1] 张永亮[1] 陈琼[1] 

机构地区：[1]南昌航空大学,南昌330063

出　　处：《电测与仪表》2008年第8期21-23,37,共4页Electrical Measurement & Instrumentation

摘　　要：介绍了三相电网电参量测量的方法;分析了I/V变换和频率测量电路并给出了软件实现的流程。提出了对电流、电压的分段线性补偿和对功率的相位偏差补偿方法。将DSP芯片TMS320F2812应用于该检测仪,实现了电网多个特征量的测量,并达到0.05%的精度。In this paper, the measurement of the three-phase power grid parameters is introduced, the I/V transform and frequency measurement circuit are analyzed, and the software implementation process is given. The sub-linear compensation method of the current and voltage, and the method of phase deviation compensation for power are advanced. The detector can measure many characteristic parameters of the power grids with DSP chip TMS320F2812 and achieve the accuracy of 0.05 percent.

关 键 词：DSP 电参量测量 软件补偿 

分 类 号：TM933[电气工程—电力电子与电力传动]