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。
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