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。
Two different modulation methods are used to modulate the inverter and their advantages and disadvantages are compared, including total harmonic distortion (THD) of voltage and current.
然后使用不同的调制方法对逆变器进行调制，并比较两种方法的优缺点，包括输出电压以及电流的总的谐波失真比率。
Experiment result showed, the topology can make the device get to high Power Factor (PF), low Total Harmonic Distortion (THD) of input current, low ripple of output voltage, and high efficiency.
实验结果表明，应用该电路拓扑的实验装置，其功率因数较高，输入电流的总谐波畸变较低，输出电压纹波小，而且整个装置的效率也比较高。
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。
Both the computer simulation and model experiment prove that it can reduce the total harmonic distortion of the harmonic current from 30.53% to 9.45% and make the waveform approach to sine wave.
通过仿真和电路试验证明，该滤波电路能将电流畸变率由原来的30.53%降低到9.45%，从而使交流侧的电流接近正弦波。
It can be seen from model experiment that the Total Harmonic Distortion (THD) of the current in the three-phase rectification circuit can be reduced from 30% to about 10%.
通过模拟试验证明，三相整流电路交流侧电流中的谐波含量由原来约30%下降到约10%。
The design of input differential-mode (DM) EMI filter for the reduction of total-harmonic-distortion (THD) for line current has been developed in considerations of practical design limitations.
而设计加入一个差模EMI滤波器以提升系统电路的功率因数并降低总电流谐波量以符合相关的规范。
The design of input differential-mode (DM) EMI filter for the reduction of total-harmonic-distortion (THD) for line current has been developed in considerations of practical design limitations.
而设计加入一个差模EMI滤波器以提升系统电路的功率因数并降低总电流谐波量以符合相关的规范。
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