Abstract
The output voltage waveform of a multilevel inverter is a quasi square wave. The quality of a quasi square wave depends on the switching angles. In this paper, a simple generalized method to compute the switching angles using a numerical series of natural numbers is presented. From the analysis of resulting quasi-square waveform it is found that the method presented in this work produces a output voltage waveform with low total harmonic distortion. The results are shown for five to eleven level quasi-square waveforms. Based on the total harmonic distortion the proposed method is compared with the optimal switching angles that are reported in the literature. From the comparison, it is found that the total harmonic distortion in output voltage obtained by generalized numerical series method is close to the minimum value reported in the literature. The method presented in this work computes switching angles without using complex algorithms and/or by solving non-linear equations. Hence, the generalized numerical series method gives an easy implementation of multilevel inverters with large number of levels.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
