在非正弦的周期性振荡中，包含基波和谐波。和该振荡周期相等的正弦波分量称为基波分量。相应于这个周期的频率称为基波频率。频率等于基波频率的整倍数的正弦波分量称为谐波。
The method of Multi-resolution wavelet is applied to the harmonics detection in this paper,fundamental component and harmonics component are measured and separated from the current including harmonics.
利用小波多分辨分析的方法进行谐波检测,将含谐波的电流进行检测并分离出基波分量和谐波分量。
参考来源 - 多分辨率小波分析在风力发电系统谐波检测中的应用·2,447,543篇论文数据，部分数据来源于NoteExpress
故障距离越远，电流、电压中的谐波含量对基波分量的影响越大；
The farther the fault location is, the larger the HF component will be.
电流基波分量和无功功率的实时检测是航空电源有源滤波器的关键技术之一。
The fundamental current's detection which can detect the fundamental current and reactive power is one of the key technologies in Active Power Filter(APF).
该方法使用一固定宽度窗口内的电网电压数据来估算其基波分量的幅值和相位。
Voltage data within a fixed width window are used to estimate the amplitude and phase of the fundamental component.
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