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Concentrated non-overlapping windings (CNW) have recently gained popularity due to key attributes of reduced machine axial length and simplified manufacturing. These attributes make it relatively more suitable for traction applications where reduced size and cost plays a vital role. In traction applications, good field weakening performance is desired. In this paper, the field weakening performance...
This paper presents the magnetic suspension test results of a bearingless motor/generator for flywheel energy storage systems. A prototype bearingless motor/generator is built on the basis of the computed results by Finite Element Method (FEM). It is an outer rotor-type permanent magnet (PM) synchronous motor/generator and the rotor is wrapped by the flywheel (CFRP). Thus, the motor/generator, the...
This paper presents the use of simulations to study imbalance faults of wind turbines. The dynamics of a model wind turbine are simulated in three different scenarios, i.e., normal operating conditions, blade imbalance, and aerodynamic asymmetry, using TurbSim and FAST. Blade imbalance is simulated by scaling the mass density of one blade which created an uneven distribution of mass with respect to...
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