24-sector direct torque control for multilevel drives
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abstract
this paper gives a detailed analysis of direct torque control (dtc) strategy in a five-level drive and proposes a 24-sector switching table. the overvoltage problem due to high dv/dt is reduced compared to the 12-sector dtc. using all vectors leads to better flexibility and reduces speed oscillations. simulation and experimental results for a 3kva prototype confirm the proposed solutions. a tms320f2812 is used to implement the above strategy.
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Journal title:
the modares journal of electrical engineeringPublisher: tarbiat modares university
ISSN 2228-527 X
volume 10
issue 4 2011
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