本项目充分地利用了DSP 强大的信号处理能力和现代数值分析方法。设计了
电能表前端采样及计量模块的硬件，以及一套符合国标GB/T 17883-1999 的0.2S
级精度要求的算法，同时扩展了谐波分析功能。系统概述为：三相电压、电流
AD 采样，采样数据通过串口送至处理器(DSP)，由DSP 对采样数据作电参数计
量和谐波分析，处理结果通过定制LCD 显示，并通过脉冲口发出有功、无功校
表脉冲。DSP 采用ADI 公司的BLACKFIN531-16 位定点芯片，最高处理能力可
达800MIPS，采样芯片为16bit 的AD73360，支持六通道同步转换，无同步误差。
数字化、高精度、创新性和可扩展性是本项目的特点，准同步采样算法和谐波分
析是本项目的新颖之处。
This project fully utilize the DSP s signal processing capability and powerful modern numerical analysis. Design
Meter sampling and measurement module front-end hardware, and are consistent with national standard GB/T 17883-1999 of the 0.2S
Level accuracy of the algorithm, and extends the harmonic analysis. System is summarized as: three-phase voltage, current
AD sampling, sampling data sent through the serial processor (DSP), the sampled data from the DSP design for electrical parameters
Volume and harmonic analysis, the results through customizable LCD display, and issued by the pulse port active and reactive school
Table pulse. DSP ADI s BLACKFIN531-16 bit fixed-point chip, the maximum processing capability
Of 800MIPS, 16bit chip sampling of AD73360, support six-channel simultaneous conversion, no synchronization error.
Digital, high-precision, innovation and scalability characteristics of this project, quasi-synchronous sampling algorithm and sub-harmonic
Analysis i (2011-08-13, Visual C++, 666KB, 下载83次)