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Modelling and Control of a Flying-Capacitor Inverter
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| Author(s) |
S. J. Watkins; L. Zhang |
| Abstract |
This paper presents the results of an investigation into the variation in the output voltage quality of a
flying-capacitor inverter under staircase angle control. The trade-offs between capacitor size, power
device voltage rating and output voltage quality are assessed through simulation. A general
mathematical model for an N-level inverter is used for circuit operation analysis and its results are
compared with those from a Simulink circuit simulation. The computer model allows a thorough
investigation of all possible switching pattern permutations that produce the desired sinusoidal output
and maintain steady state capacitor voltage balancing. Results show that the total harmonic distortion
in a sinusoidal synthesised output can be minimised by the correct selection of the switching mode
sequence. |
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| Filename: | EPE2001 - PP00439 - Watkins.pdf |
| Filesize: | 90.3 KB |
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| Type |
Members Only |
| Date |
Last modified 2004-03-15 by System |
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