基于DSP的谐波电能计量算法研究.pdfVIP

学兔兔 第5l卷 第6期 电测与仪表 Vo1．51 NO．6 2014年 3月25日 Electrical Measurement InstrumentatiOn Mar．252014 基于DSP的谐波电能计量算法研究 术 张庆辉 ，崔勇 ，朱亚峰 (1．河南工业大学信息科学与工程学院，郑州450001；2．华北电力大学经济与管理学院，北京102206) 摘要：分析了已有FFrI~法在谐波电能计量应用中产生的缺陷，提出了加窗FFT谐波电能计量算法，并给出了基 于加窗FF1谐波电能计量算法的基本电能计量参数计算公式。运用Matlab进行了算法仿真，构建了谐波电能计 量算法的DSP实验系统，编写了浮点型DSP芯片TMS320F28335主程序流程图及电能计量算法子程序流程图，对 本文算法进行了实验验证。结果证明，本文的谐波电能计量算法具有很高的准确度，兼具可行性和实用性。 关键词：DSP；谐波；电能计量；算法研究 中图分类号：TM93 文献标识码：A 文章编号：1001—1390(2014)06—0009—05 Research on Harmonic Power Measurement Algorithm Based on DSP l 2 1 ZHANG Qing-hui，CUI Yong，ZHU Ya—feng (1．School of Information Science and Engineering，Henan University of Technology，Zhengzhou 45000 1，China 2．School of Economics and Management，North China Electric Power University，Beijing 102206，China) Abstract：With the analysis on the defects produced by the application of FFT algorithm in harmonic electric energy metering，a harmonic energy metering algorithm using windowed F盯 is proposed，and the calculation formula of basic electric energy measurement based on the algorithm are presented．Matlab is used for algorithm simulation，and the DSP experiment system with the harmonic energy metering algorithm is constructed．Based on floating—point DSP TMS320F28335，Flowcharts of the main program and the subroutine for electric energy metering algorithm are presented，and the proposed algorithm is tested by experiments．Experimental results show that the harmonic energy metering algorithm has high accuracy，feasibility and practicability． Key words：DSP，harmonic，electricity metering，algorithm resear