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Reduction of Linearity Range of SVM in Soft Switching Converters
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| Author(s) |
A. Radan |
| Abstract |
The duration of Zero Voltage Transitions (ZVT) in soft switching converters restricts the minimum
duration of voltage vectors of Space Vector PWM (SVPWM) which can be switched. This affects the
linearity range of space vector modulation in soft switching converters. This paper investigates the
restrictions imposed by the duration of ZVT on SVPWM resulting in reduction of the linearity range
of modulation in these converters. The conventional continuous SVPWM and an optimised
discontinuous SVPWM are compared with each other regarding maximum available linear modulation
index. The results show that the discontinuous SVPWM makes a higher maximum linear modulation
index available in soft switching converters, but this maximum can not be reached the value 1.15 of
hard switching converters. |
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| Filename: | EPE2001 - PP01289 - Radan.pdf |
| Filesize: | 450.5 KB |
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| Type |
Members Only |
| Date |
Last modified 2004-03-11 by System |
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