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Transverse Flux Permanent Magnet Motor (TFPM) was first introduced in the 1980's, it has a great potentiality in direct drive area for its low-speed-high-torque capability and high torque density. However, the larger cogging torque and flux leakage have restricted its popularization and practical utilization.
There has been an increased usage of adjustable frequency drives (AFD) coupled with induction motors due to the demand for higher operating efficiency levels. Due to the starting requirements, motor manufacturers are forced to employ high resistivity rotor bars which lead to higher losses and lower motor efficiency. This paper will show that AFD offer the advantage of decreasing the energy consumption...
The rotor of an induction motor is designed to provide adequate starting torque and limit starting current when the load is being accelerated by the motor. These starting requirements on the rotor force design engineers to employ special shape rotor bars, or high resistance bars and thereby reduce motor efficiency and increase motor temperature rise. In addition to the benefits provided by an adjustable...
This paper explores the possibility of using normal form method for transient stability analysis of grid-connected squirrel cage induction generators (SCIG) considering with rotor electrical transients. The theory of nonlinear dynamic system for power system stability boundary approximation is introduced briefly. The third-order state equations of SCIG equivalent to a synchronous generator with the...
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