Analysis and Minimization of Output Current Ripple of Multiphase Carrier-Based PWM Inverters
| Main Author: | Dahono, Pekik Argo; School of Electrical Engineering and Informatics, Institute of Technology Bandung, Jl. Ganesa No. 10, Bandung 40132, Indonesia Tel. 62-22-2503315, Fax. 62-22-2508132 |
|---|---|
| Format: | Article info application/pdf eJournal |
| Bahasa: | eng |
| Terbitan: |
ITB Journal Publisher, LPPM ITB
, 2013
|
| Subjects: | |
| Online Access: |
http://journals.itb.ac.id/index.php/jets/article/view/129 http://journals.itb.ac.id/index.php/jets/article/view/129/125 |
Daftar Isi:
- Analysis and minimization of output current ripple of multiphase carrier-based PWM inverters are presented in this paper. Analytical expression of rms value of output current ripple of multiphase PWM inverters as a function of the reference signal is first derived. Based on this expression, it is shown that a pure sinusoidal signal is the optimum reference signal that results in minimum output current ripple. Different to three-phase PWM inverters, injection of harmonics into the sinusoidal reference signal is neither necessary nor useful. The rms values of output current ripple of 5-, 7-, and 9-phase PWM inverters under various reference signals are compared. Experimental results are included to show the validity of the analysis method.