由于交流电网有效分量为工频单一频率，因此任何与工频频率不同的成分都可以称之为谐波。由于正弦电压加压于非线性负载，基波电流发生畸变产生谐波。主要非线性负载有UPS、开关电源、整流器、变频器、逆变器等。
Meanwhile,with the company of TI fixed-point digital signal processor TMS320F2812 as a platform,real-time detection of power harmonic frequency,using CAN bus to trans mitreal-time PC analysis show that to achieve real-time monitoring.
同时,以TMS320F2812型DSP为核心搭建了检测分析平台,实时检测分析电力谐波次数;运用CAN总线将分析结果实时传送到上位机显示,达到实时监控目的。
参考来源 - 单神经元变步长控制算法在谐波检测中的应用·2,447,543篇论文数据，部分数据来源于NoteExpress
研究和开发了一套集成化电力谐波智能监测系统。
In this paper, a set of harmonics-monitor is researched and developed.
电网中非线性负载引起的电力谐波会加剧配电变压器损耗，造成电能的巨大浪费。
Power harmonics caused by nonlinear load increased distribution transformer's additional loss which causing a huge waste of energy.
目前已有的电力谐波监测系统大多采用基于快速傅立叶变换（FFT）的检测方法。
Most of present harmonics-monitors adopt the technique of Fast Fourier Transform (FFT) to detect harmonics. However, FFT needs longer time to collect and process the signal.
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