本文介紹了電網(wǎng)中諧波成分的起因以及對電網(wǎng)運行的危害，討論了頻率分析中常用的離散傅里葉變換和快速傅里葉變換的應用特點，最后利用ADI 公司的ADuC841 微控制器芯片實現(xiàn)了電網(wǎng)中諧波成分的測量。數(shù)據(jù)顯示所提出的方法具有足夠的測量精度以及測量速度，并且所設(shè)計的系統(tǒng)具有使用方便、成本低等優(yōu)點。
關(guān)鍵詞：正弦波；非正弦波；基波；諧波；微控制器
Abstract：This paper introduces the network harmonic components, as well as the causes of the power grid operation against discussed frequency analysis used in the discrete Fourier transform and Fast Fourier Transform application characteristics, the final use of ADI's micro-controller chip ADuC841 Harmonic components of the network measurements. Data show that the proposed method with sufficient accuracy and measurement speed, and the system designed with ease of use, and low cost advantages.
Keywords：sine wave; non-sine wave; fundamental wave; harmonic; MCU