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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Hossam, R.M. Hashem, G.M. Marei, M.I. |
| Copyright Year | 2013 |
| Description | Author affiliation: Dept. of Electr. Power & Machines, Ain Shams Univ., Cairo, Egypt (Hossam, R.M.; Hashem, G.M.; Marei, M.I.) |
| Abstract | Optimized Harmonics Stepped Waveform Pulse-Width Modulation(OHSW-PWM) for high voltage high power cascaded multilevel inverter with equal DC sources are commonly used in constant frequency utility applications. Stepped switching angles for cascaded multilevel inverter are calculated by solving nonlinear equations to eliminate preselected lower order harmonics. This paper proposes a generalized method to calculate the switching angles based on Newton-Raphson method for solving the nonlinear equations, which are transcendental in nature and multiple solutions exist. Calculations of the switching angels are performed by anticipated formula for calculating the initial angles values. This paper presents solutions for 5, 7, 9, 11, and 13 multilevel inverters under different values of the modulation index using Matlab software. The results reveal that Newton-Raphson method can be effectively used to calculate the switching angles that eliminate the selective lower order harmonics from the MLI output voltage and reduce the total harmonic distortion. The experimental and simulated results proved the effectiveness of the proposed method. |
| Sponsorship | EPRC |
| Starting Page | 1 |
| Ending Page | 6 |
| File Size | 1440817 |
| Page Count | 6 |
| File Format | |
| ISBN | 9781479932542 |
| DOI | 10.1109/UPEC.2013.6714984 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2013-09-02 |
| Publisher Place | Ireland |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Cascaded Multilevel Inverter Total harmonic distortion Optimized Harmonic Stepped Waveform Selective Harmonics Elimination PWM. Newton-Raphson method Modulation Switches Power system harmonics Harmonic analysis Inverters Voltage control |
| Content Type | Text |
| Resource Type | Article |
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