The device can calculate transient harmonics (up to 50 orders) of any part of data wave, give the total harmonic distortion, each harmonic ratio and each harmonic value.
装置可以计算波形任意部分的多达50次的暂态谐波,给出谐波总畸变率及各次谐波的含有率和谐波值。
And the ratio of the color of the stone, to natural, harmonic, constitute a common style.
座与石的颜色配比,要天然、调和,构成共同的风格。
Capacitor Banks with various reactance ratio have different functions to harmonic.
不同电抗率的电容器组对谐波有不同的作用。
Analysis and simulation results show that different harmonic currents flowing into the capacitor circuit is different due to different reactance ratio of series reactor.
分析与计算结果表明,因串联电抗器的电抗率不同,其流进电容器回路的谐波电流也截然不同。
The cause of symmetric inrush is analyzed, and the simulation results show that the ratio of second harmonic in the symmetric inrush is not lower than that in the asymmetric inrush.
同时,分析变压器对称涌流产生的原因,计算说明对称涌流中的二次谐波比并不一定比单侧涌流低。
Also, optimized SAPWM modulation wave has been utilized, improving the utility ratio of DC voltage and restraining effectively the output harmonic current of inverter.
并采用优化的SAPWM调制信号,提高了直流电压的利用率,并能有效地抑制逆变器输出的谐波电流。
The energy ratio (PER) characterize the energy change of the resonant harmonic components of system.
文中通过能量比率(PER)的概念刻画了结构谐振中系统谐波成分的能量变化。
Harmonic content of the input currents depends on the rectifier voltage gain m defined as ratio of the output voltage and the input line voltage as well as the employed control.
输入电流的谐波量有赖于整流器的电压获取值m,即输出电压和输入电压的比值,也有赖于操作人员的控制。
Finally, a solution to restraining the harmonic current and ripple torque is suggested, ie a larger modulation frequency ratio of 3k is to be adopted, as it is used in SPWM.
文中还提出了抑制谐波电流和脉动转矩的方法,如在SPWM生成中,采用较大的3的整数倍调制比。
The paper introduces a kind of new harmonic drive structure_harmonic chain-drive. Geometry and ratio relations for basic structural units are discussed in the drive.
介绍了一种新型谐波传动形式—谐波链传动,并且论述了该传动装置中基本构件间的几何尺寸关系、传动比关系。
The fluctuation circle of aquatic products price between 1978 and 2000 via ratio of variation and harmonic wave was researched.
采用变异率指标与谐波分析法研究了1978-2000年水产品年度收购价格波动的周期性。
From the view of switch utilization ratio, the theory gist is given for employing which circuit in condition with different total harmonic distortion of load current to correct harmonic current.
从开关利用率的角度,为不同负载电流畸变率情况下选取何种电路进行谐波补偿,提供了理论依据。
The simulation results show that the speed ratio of the motor mostly affects the total harmonic distortion of the current and the displacement power factor.
仿真结果表明,电机转速比是影响交交变频轧机系统网侧基波功率因数与电流总畸变率的关键原因。
The simulation results show that the speed ratio of the motor mostly affects the total harmonic distortion of the current and the displacement power factor.
仿真结果表明,电机转速比是影响交交变频轧机系统网侧基波功率因数与电流总畸变率的关键原因。
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