查询词典 harmonic component

Rotation accuracy ; first harmonic component ; eccentric motion ; curve fitting.

回转精度；一次误差运动；偏心运动；曲线拟合

The Fourier analysis method is applied to decompose the air gap magnetic density into the basic spatial component and a series of harmonic components and wave shape eigen coefficient of air gap magnetic field are calculated.

通过对气隙磁场的分析可以计算出转子表面损耗，进而计算出转子的温度场分布。

Because of action of the nonlinear load,a large number of third harmonic component would exist in the neutral line current.

由于非线性负荷的作用，可使中线电流中含有大量的3次谐波分量。

With regard to the software design, we realized the software filter for anti-intermixing; and we use the Fast Fourier Transform Algorithm to analyze the harmonic of the voltage and current; also we analyze the method of calculating all the parameters of the power system, fault component and positive, negative, zero sequence.

软件算法方面，系统对信号采用了抗混叠软件滤波，并采用传统的快速傅立叶变换，对采样的电压和电流信号进行频谱分析。论文中还详细分析了电网各参数，故障分量以及正、负、零序分量的计算。

The fundamental positive component, which is employed to determine the phase angle of the source current reference, is obtained by performing harmonic analysis on the source voltage, while the magnitude of the source current reference is determined from the viewpoint of energy-balance.

该方法通过对电源电压进行谐波分析，得出电压的基波正序分量，由此来确定电源电流参考的相位信息；同时从能量平衡的角度确定电源电流参考信号的幅值信息。

This method can inspect the harmonic component and reactive power immediately.

该方法可以实现快速的检测出谐波分量，并补偿无功功率。

Compared with the traditional shunt APFs, there is no need to sense load current, noneed to calculate the harmonic and reactive component of the load current, and noneed for multiplier.

与传统APF相比，采用单周控制方法的APF的突出优点是：不需要检测负载电流，不需分离出负载电流中的谐波和无功分量，因此省略了高精度乘法器，控制电路简单。

In contrast to the traditional APF,there is no need to sense the load current,no need to calculate the harmonic and reactive component of the l...

具有主电路结构新颖、控制电路简单，补偿效果好等优点。实验结果验证了文中所提出理论的正确性

The improved algorithm supplied the exact reference phase for current d-q transformation,then detection accuracy of the algorithm wasn t influenced by voltage distortion,so it can detect the harmonic and reactive component of load current effectively.

该改进算法为电流的d-q变换提供精确的参考相位。采用改进的检测算法，电压畸变不会影响该算法检测的精确度，并能有效地检测负载电流的谐波与无功分量。

Currently, there are various projects for comprehensive compensation of reactive power, harmonic component and negative sequence in the traction substation of electrified railway.

目前，我国牵引变电所无功功率、谐波和负序的综合治理已有多种方案，本文结合国内重载电气化铁道朔黄线的负荷情况，通过分析多种综合补偿方案，并加以比选，得出适合朔黄线的牵引供电综合补偿方案。

Objective:To study the anti-senile effect of Sorbaria sorbifolia extract on Dgalgctose induced subacute senile in rats.

目的：探讨珍珠梅提取物对D半乳糖致衰老大鼠的保护作用。

Your advertisement for marketing officer in China Trade news of May 17 has interested me, I wish to tender my services.

贵公司五月十七日在中国贸易报张刊登招聘市场部办公室主任的广告，本人拜读后极感兴趣，特此应召。