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Reduction of Common Mode Currents generated by Three-Level Inverters with Consideration of Motor Overvoltages
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| Author(s) |
Arnaud Videt, Philippe Le Moigne, Nadir Idir, Philippe Baudesson, Jean-Jacques Franchaud, Jacques Ecrabey |
| Abstract |
In adjustable speed drive applications, the switching of the inverter semiconductors generates common mode currents as well as harmful overvoltages on the motor terminals when long cables are used. Consequently, bulky and expensive input
and output filters must be used. This work aims at reducing these disturbances from their origin by using a three-level neutral-point-clamped (NPC) inverter controlled with a new pulse-width-modulation (PWM) strategy. Whereas previous common mode noise-reducing strategies usually generate higher overvoltages than conventional ones, the proposed PWM is able to manage both problems thanks to its internal degrees of freedom. |
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| Filename: | Unnamed file |
| Filesize: | 430.2 KB |
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| Type |
Members Only |
| Date |
Last modified 2009-12-02 by System |
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