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The Modulation Method for The Three-level-Output-Stage Sparse Matrix Converter
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| Author(s) |
Meng Yeong Lee; Patrick Wheeler; Christian Klumpner |
| Abstract |
In order to control motion and to improve efficiency of an electromechanical conversion chain,
variable voltage and variable frequency AC drives have been widely used in commercial applications.
The need for a bulky and limited lifetime energy storage electrolytic capacitor in the DC link is a
major disadvantage for a traditional AC-DC-AC power converter so alternative topologies have been
researched extensively. Matrix converter is a forced-commutated AC-AC power converter topology
that directly converts energy from an AC source to an AC load without the use of an energy storage
element. From this family, the three-level-output-stage matrix converter is a topology that can
synthesise three-level voltage to improve the output performance in terms of reduced harmonic
contents. This paper proposes a modulation scheme for this topology. Realistic simulation results
prove the ability of this converter topology to produce better output voltages when compared to a
conventional matrix converter and also to maintain a sinusoidal input current. |
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| Filesize: | 868 KB |
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| Type |
Members Only |
| Date |
Last modified 2008-01-17 by System |
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