特定消谐PWM技术中省略开关角对的研究

A Study on Omitting Switch Angles in the Selective Harmonic Elimination PWM Technology

为解决特定消谐（ＳＨＥ：ＳｅｌｅｃｔｉｖｅＨａｒｍｏｎｉｃＥｌｉｍｉｎａｔｉｏｎ）技术中提高电源输出波形质量与硬件实现难度之间的矛盾，根据开关角的分布规律，通过对省略几组间隔过小的开关角对的研究，达到了用较少的开关角消除较多次谐波的目的，从而提高了特定消谐技术的工程实用性。

In order to solve the paradox between improving the quality of power output wave and the dif- ficulty of hardware is paper uses the method of omitting some couples of switch angles properly and fewer switch angles to eliminate more harmonics. As a result the practicality of SHE is improved.