基于Matlab的DSP谐波分析研究

Research on DSP harmonic analysis based on Matlab

随着各种电力电子设备在电力系统、工业、交通及家庭中的应用日益广泛,谐波所造成的危害也日趋严重。为了达到对工频电压的谐波进行检测和实时分析的目的,采用Matlab软件自带的数据分析处理函数和DSP硬件优良的数据处理能力相结合的方法,对某高压实验室工频电压做了实验,获得了符合理论依据的实际电压谐波数据及幅频特性,运用这种软硬结合的方法能有效地对电压信号进行谐波分析,可应用于实际工作中。

Along with the widely used of a variety of power electronic equipment in power systems, industrial, transportation and families. The harm caused by the harmonic wave is becoming more and more serious. In order to achieve the purpose of detect-ing the harmonic wave of power frequency voltage and real-time analysis, the author uses combination method of Matlab soft-ware function of data analysis processing and DSP with excellent data processing ability, made the power frequency voltage experi-ment in a high voltage laboratory, and obtained the actual voltage harmonic data consistent with theoretical basis and the amplitude frequency characteristics, applying this combination of hardware and software method can do the harmonic analysis of the voltage signal effectively, which can be applied to the actual work.