So, when you use a lot of VFDs, you really should look at the total harmonic content.
所以，如果你采用了大量的变频器，就确实需要查看一下谐波电流的总量。
The PWM rectifier with unity power factor, harmonic content of the low energy features such as reversible transmission was introduced.
PWM整流器具有单位功率因数，谐波含量低，能量可逆传送等特点。
The frequency stability, amplitude stability and harmonic content can be deduced from the second order perturbation solution of that equation.
方程的二阶近似解显示出非线性效应对振荡频率稳定度、振幅稳定度及波形正弦纯度的影响。
Its principle is analyzed in this paper, and the relation of phase shifted Angle, the amplitude of each harmonic content and the THD is also analyzed in detail.
本文分析了工作原理，并对移相角与输出各次谐波的幅值，THD的关系做了详细的理论分析。
The harmonic pollution control is inevitable. In order to detect accurate harmonic content of the power system, the most important problem to solve is harmonic detection and analysis.
谐波治理势在必行，而首要解决的问题就是谐波检测和分析，确切掌握电网中谐波的实际情况。
Simulation and experimental results show that the proposed converter has sine wave input current and output voltage, low harmonic content, adjustable power factor, and zero voltage commutation.
仿真和实验结果表明：所提出的变换器输入电流和输出电压为正弦，谐波小且输入功率因数可控，并可实现零电压换流。
Simulation and experimental results show that the proposed converter has sine wave input current and output voltage, low harmonic content, adjustable power factor, and zero voltage commutation.
仿真和实验结果表明：所提出的变换器输入电流和输出电压为正弦，谐波小且输入功率因数可控，并可实现零电压换流。
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