基于DSP的单相电能表现场校验仪设计

The Design of Field Calibrator for Single-phase Electric Energy Meter Based on DSP

摘要: 本文设计了一种高精度、低成本的单相电能表现场校验仪.该校验仪硬件系统以数字信号处理器TMS320F2812为核心,主要包括交流电压电流采样、A/D转换、功率/频率转换和人机接口等电路.软件系统以CCS2000为平台,采用C语言编程实现.实验表明该装置精度达到0.2级.

Abstract: This paper designs field test equipment for single–phase power meter with high –precision and low-cost.The hardware system of the calibrator use digital signal processor TMS320F2812 as the core component,including AC voltage and current sampling,A/D conversion,the power/frequency conversion and human-computer interface circuit.The software system of the calibrator use CCS2000 as the platform,using C language programming.Experiments showed that its measurement precision is above 0.20.