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This paper considers the minimizing of eddy current losses of PM motor through the proper choice of the magnet material, rotor magnet design and the comparison analysis between with and without rotor segmentation. Through 3D analysis and the experiment, it is shown that the magnet segmentation has the effectiveness of eddy current loss reduction especially for the variation of load condition.
In this paper, a new double-sided linear flux-switching permanent magnet (DLFSPM) motor for electromagnetic launch system is proposed, in which the mover only consists of yokeless iron while the permanent magnets and armature windings are all located on the stator. Hence, this motor incorporates the merits of high thrust density of permanent magnet linear motor and high reliability of linear induction...
Calculation and matching of the main parameters of a brushless DC (BLDC) motor for a Battery electric vehicle (EV) is studied in this paper. Usually, different shapes of permanent magnet (PM) and different magnetizing methods will affect the performance of the motor. Especially when the motor is designed for an EV, more elements need to be considered, such as efficiency under normal operating conditions...
We have proposed a claw pole type half-wave rectified variable field flux motor (CP-HVFM) with special self-excitation method. The claw pole rotor needs the 3D magnetic path core. This paper reports an analysis method with experimental BH and loss data of the iron powder core for FEM. And it shows a designed analysis model and characteristics such as torque, efficiency and loss calculation results.
As a response to the rare earth crisis arising in recent years, two new permanent magnet synchronous reluctance (PMSynR) motors with non-rare-earth materials are proposed for electric vehicle (EV) applications in this paper. The key feature of the motor is to adopt different magnet and flux-barrier combinations to obtain relatively high torque density, high power density and high efficiency. To verify...
We have proposed a claw pole type half-wave rectified variable field flux motor (CP-HVFM) with special self-excitation method. This paper reports the experimental results under the load condition and various speed command, and shows the fundamental output characteristics such as the voltage and the current, the efficiency. And we consider the influence of the variable field flux control on the fundamental...
Along with the higher requirement of aircraft's generation system proposed, Integrated Starter Generator system appeared on the stage of history which can work as an electric motor and a generator at the same time. This paper talks about a Permanent Magnet Machine (PMM) which is applied as Integrated Starter Generator (ISG) used into the unmanned aerial vehicle (UAV). Permanent Magnet Machine has...
This article presents a method for control of a multiphase motor drive based on the use of a cognitive network that is capable of modelling nonlinearities of the system in fault conditions. To obtain a faithful model of the drive, a neural network (trained with the results of simulated faults) is used in the control algorithm in order to predict the system performance and adapt the control. A new...
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