Overmodulation and field weakening in direct torque control of induction motor drives
During transient conditions, for instance during acceleration and deceleration, the inverter used in an induction motor drive normally operates in overmodulation in order to efficiently utilize the DC-link voltage. Beyond the based-speed, the flux is normally reduced proportionally with speed to ext...
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| Format: | Thesis |
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2006.
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| Online Access: | Get fulltext |