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A Novel Solution For Phase Current Sensing In Pwm-Vsi Based Ac Drives
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| Author(s) |
F. Parasiliti; R. Petrella; M. Tursini |
| Abstract |
In this paper a novel solution for phase current sensing in PWM–VSI based AC drives is presented,
based on a resistive sensors put in series to the lower switches of the inverter legs. It allows current
sensing during each modulation cycle within the whole operating area of the inverter. Inside the
overmodulation area a simple but effective modification of the modulation pattern is proposed which
does not increase the complexity of the implementation almost at all. Encumbrance, complexity and
cost resemble the solution using a single sensor on the DC link, but almost no operating limitations
are introduced. Experimental results are presented in order to show the performance and effectiveness
of the proposed method. |
| Download |
| Filename: | EPE2001 - PP01028 - Tursini.pdf |
| Filesize: | 372.1 KB |
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| Type |
Members Only |
| Date |
Last modified 2004-03-15 by System |
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