harmonic ratio meaning in Chinese

低比
谐波比

Nth harmonic ratio
次谐波比
Computation method based on fast fourier transformation ( fft ) is studied deeply , whose measurement accuracy is 0 . 2s . the computing indexes involve voltage , current , power , frequency , phase , electric power , the harmonic ratio and the total harmonic distortion ( thd ) of phase voltage and phase current
深入研究了测量精度为0 . 2s级的基于快速傅立叶变换( fft )的电压、电流、功率、频率、相位、电能等电力参数和各相电压电流各次谐波含量、谐波含有率、谐波总畸变率的计算方法。
On the calculation , we can hold the conclusion that the two kinds of compensators have no distinct difference at the technical aspect under circumstances of two - phased compensation . the effect of decreasing negative sequence current and harmonics ratio is indistinct , however , both are effective in increase power factor
通过仿真发现，这两种补偿方案在技术方面的差别不大：两相补偿模式下，在降低负序和滤波方面，效果都不明显；对提高功率因数的作用显著。