DOUBLE-DELTA-WINDING SYSTEM WITH NEUTRAL-POINT-CLAMPED CONVERTERS CONTROLLED BY SYNCHRONOUS MULTI-ZONE PWM
| Autor: | V. Oleschuk, V. Ermuratskii |
|---|---|
| Jazyk: | English<br />Ukrainian |
| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Праці Інституту електродинаміки Національної академії наук України, Iss 56, Pp 59-63 (2020) |
| Druh dokumentu: | article |
| ISSN: | 1727-9895 2786-7064 |
| DOI: | 10.15407/publishing2020.56.059 |
| Popis: | In this paper, algorithms of the universal scheme of synchronous multi-zone modulation have been developed and dis-seminated for adjustment of two neutral-clamped inverters of double-delta-winding system (which is perspective for ap-plication in high power variable speed ac drives), providing synchronization and symmetry of waveforms of inverter-side voltage of power transformer for any control modes of operation including regimes with fractional relationship be-tween the switching frequency of inverters and fundamental frequency of system. In this case inverter-side winding voltage of double-delta-winding system has quarter-wave symmetry, and its spectra do not contain even harmonics and undesirable subharmonics. Simulation results show behavior of system with two neutral-clamped inverters con-trolled by three basic versions of synchronous multi-zone modulation. References 9, figures 5, table. |
| Databáze: | Directory of Open Access Journals |
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