中文摘要：

针对电力行业谐波电能计量的迫切需求，提出了AD73360L＋ADSP-BF533＋M30624FGPFP的三相多功能谐波电能表构成方案，简述了电能表的工作原理，详细介绍了6路同步采样ADC的数据采集电路和以ADSP-BF533为核心的数据处理电路设计，论述了为改善FFT频谱泄漏、旁瓣效应采用的基于Hanning窗双峰插值FFT的谐波电能计量方法，探讨了谐波电能计量的比差、角差校正方法．据此研制的三相多功能谐波电能表的基波有功测量误差≤0．2％，基波无功测量误差≤1％，2～21次谐波电压测量误差≤2％，谐波电流测量误差≤5％，谐波相位测量误差≤5°，满足GB／T14549—93的A类谐波测量仪器要求．

英文摘要：

To meet the urgent demand of electric power industry for harmonic energy measurement, a threephase multi-functional harmonic energy meter structure composed of AD73360L ＋ ADSP-BF533 ＋ M3- 0624FGPFP was presented. The operating principle of the electric energy meter was described. The data acquisition circuit of six - channel synchronous-sampling A/D converter and the data processing circuit with the core of ADSP-BF533 were introduced in detail. Harmonic energy measurement algorithm based on Hanning window double-spectrum-line interpolation FFT （Fast Fourier Transform） for improving spectral leakage and fence effect of FFT was discussed. The correction method of ratio error and phase error of harmonic energy measurement was also discussed. The three-phase multi-functional harmonic energy meter based on the algorithm proposed has its error of fundamental active power measurement lower than 0.2 %, error of fundamental reactive power measurement lower than 1%, amplitude error Of harmonic electric voltage lower than 2 %, amplitude error of harmonic electric current lower than 5 %, and phase angle error between harmonic voltage and electric current lower than 5°. The above data results meet the accuracy requirement of the A class harmonic measurement instruments according to GB/T 14549--93.