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Influence of Dead Time Effects of PWM-VSI on Current Control
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| Author(s) |
P. Weichbold; T. von Raumer |
| Abstract |
Non-ideal behaviour of the inverter, generally known as “dead time effect”, causes a voltage error in
the inverter output voltage. This paper investigates the influence of this voltage error on current
control used for field oriented controlled AC machines. The magnitude of pulsations of the q-axis
current, responsible for the torque ripple of a drive system is analysed for both permanent magnet
synchronous machine and induction machine. A feed-forward scheme to compensate the voltage error
is proposed. Experimental results are presented in order to confirm the theoretical considerations and
the effectiveness of the proposed compensation scheme. |
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| Filename: | EPE2001 - PP00459 - Weichbold.pdf |
| Filesize: | 235.9 KB |
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| Type |
Members Only |
| Date |
Last modified 2004-03-09 by System |
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