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This paper presents a sensor-less vector control method which estimates the rotor angle and speed of a nine-phase, Interior Permanent Magnet (IPM) machine with concentrated stator winding, especially for use at starting, zero and low speed operations. The injection of unique high frequency voltage signals into a non-torque producing third sequence circuit of the machine provides current information...
Interior permanent magnet motors have desirable characteristics for electric vehicle drive like high efficiency, wide speed range for flux weakening, relative ease for sensorless control as rotor position information can be obtained from saliency and the possibility of reluctance torque usage in the field weakening range. This paper presents a model and analysis of a nine-phase IPM motor for electric...
An electric drive system consisting of two three — phase induction motors independently controlled by an integrated dual inverter is modeled and simulated in Matlab/Simulink. The introduced topology can be used in an electrical vehicle where the main machine is used as a traction drive and the auxiliary machine can be used for air conditioning purposes. While the traction motor is driven by three...
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