| Autor: |
Kamani, Piyush L., Mulla, Mahmadasraf A. |
| Předmět: |
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| Zdroj: |
International Journal of Emerging Electric Power Systems; Oct2018, Vol. 19 Issue 5, pN.PAG-N.PAG, 10p, 1 Color Photograph, 1 Diagram, 2 Charts, 6 Graphs |
| Abstrakt: |
This paper presents a univariate equation-based selective harmonic elimination-pulse-width modulation (USHE-PWM) method for cascaded H-bridge (CHB) multilevel inverters (MLIs). Using equal-area criteria, the selection of voltage rating of dc-links have been done. The output voltage is controlled by inserting switching notch at the centre of each level of output voltage. Instead of conventional transcendental SHE-PWM equations, all these calculations are accomplished using univariate equations. This simplifies the real-time implementation of the proposed method greatly, even for the MLI with a large number of levels. The USHE-PWM method can eliminate more harmonics compared with the conventional SHE-PWM methods. While controlling the output voltage, the harmonic pattern remains unaffected. The validity of the proposed method is confirmed by the simulation and experimental studies. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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