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A multilevel inverter topology for the generation of dodecagonal space vectors for Medium voltage induction motor drives
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| Author(s) |
Najath ABDUL AZEEZ, Rajeevan PUTHANPURAYIL, Jaison MATHEW, Gopakumar K, Mathew K |
| Abstract |
In this paper, a hybrid multilevel inverter topology for the generation of dodecagonal space vectors is presented which eliminates all (6n±1), n=odd harmonics from the motor phase currents in the entire range of modulation with an increase in the range of linear modulation. The topology is a hybrid of flying capacitor, H-bridge and conventional two-level inverter cells. With this topology, any standard induction motor can now be used as the load thus avoiding the requirement of open end winding induction motors for the generation of dodecagonal voltage space vectors. A strategic variation in the PWM switching scheme, which is valid for two-level as well as multilevel inverters, is also proposed that reduces the current THD compared to conventional space vector PWM schemes. |
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| Filename: | 0003-epe2013-full-09000670.pdf |
| Filesize: | 1.075 MB |
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| Type |
Members Only |
| Date |
Last modified 2014-02-09 by System |
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