在研制这种多电平逆变器时，一个关键的问题就是如何来产生开关角度，并以此来生成基波电压且不产生特定的低次谐波。
A key issue in the design of such an inverter is to determine the switching angles so as to produce the fundamental voltage and not to generate specific lower order harmonics.
科学家们在他们的论文中提到，”除了从科学审美观的角度进行解释外，他们的研究还可以帮助设计微型发动机和开关。
The scientists wrote in their paper that, "in addition to infusing a scientific aesthetic into a thing of beauty," their study could aid the design of tiny motors or switches.
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。
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.
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