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PWM SWITCHING PATTERNS FOR OPERATING A 3-PHASE INVERTER BRIDGE AS A BOOST CONVERTER
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| Author(s) |
John C. Salmon |
| Abstract |
This paper describes how the boost-action of an inverter bridge is influenced by the inverter pwm switching patterns. The inverter boost-action presented in the paper assumes that the 3-phase pwm voltages at the inverter bridge output terminals are not corrupted. The maximum permissible voltage gain of the inverter boost-action is shown to be dependent upon the amplitude modulation depth and to a limited extent by the type of reference waveform used. Analysis of the reference waveforms is used to predict the inverter boost-gain and good agreement is obtained between these predictions and results obtained from analysis of pwm switching patterns. Operating bounds for the inventer boost-action are linked with the ripple associated with three-phase rectified voltages and also with the inverter boost-gain fluctuations. |
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| Filename: | Unnamed file |
| Filesize: | 3.328 MB |
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| Type |
Members Only |
| Date |
Last modified 2019-05-16 by System |
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