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Three-Phase Soft-Switching Inverter With High-Frequency Transformer-Assisted Auxiliary Resonant Snubber
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| Author(s) |
Eiji Hiraki, Mutsuo Nakaoka, Shigeyuki Sugimoto, Shigeaki Ogawa |
| Abstract |
In this paper, a prototype of the auxiliary resonant
commutated snubber circuit (ARCS) incorporating a pulse-current
feedback high-frequency transformer with power regeneration
loop is described for three-phase inverter from a practical
point of view. For three-phase voltage-fed soft-switching inverter,
soft-switching active power filter and active PFC rectifier, the
soft-switching inverter topology treated here has significant advantages
of effective power loss reduction in the auxiliary active
switching power devices in the ARCS. In addition, this paper presents
a DSP-based digitally-control space vector-modulated threephase
voltage-fed inverter with high-frequency pulse-current
transformer (HFPT) assisted ARCS, which can efficiently operate
under a stable condition of a zero voltage soft-switching commutation.
The steady-state operating circuit analysis of the new
ARCS has the salient features and the practical design procedure
of this resonant snubber are illustrated and discussed on
the basis of simulation and experimental results. The operating
performance of this soft-switching inverter using IGBT power
modules and its evaluations in the steady-state are actually discussed
as compared with the conventional three-phase voltagefed
space vector modulated hard-switching inverter. |
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| Filename: | A21150 |
| Filesize: | 915.1 KB |
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| Type |
Members Only |
| Date |
Last modified 2006-02-15 by System |
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