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In recent years, permanent magnet (PM) machines have received increasing attention for direct-drive applications due to its high efficiency and improved power density performances [1]. In [2], a linear stator permanent magnet vernier (LSPMV) machine is proposed, in which the stator consists of an iron core wound with distributed windings and PMs mounted on the surface of the stator teeth, while the...
Recently, double salient permanent magnet (DSPM) machines have been attracting more and more attentions due to the merits of simple and robust rotor and ease of permanent magnet (PM) heat management [1]. In fact, the DSPM machine can be considered to be a combination of a switched-re-luctance machine and stator PMs. As shown in Fig. 1, in the conventional 3-phase DSPM machine, the stator salient teeth...
Linear motors are being attracted considerable attentions in many industry applications, such as ropeless elevator and aerospace fields, in which the linear motors can be directly used to contribute linear driving force. Thus, the initial cost of the drive system is expected to be reduced and the operation efficiency can be improved due to the elimination of the rotary-to-linear device. It is widely...
Stator permanent magnet (PM) motors, namely, flux-switching PM (FSPM) motor, double salient PM (DSPM) motor and flux reversal PM (FRPM) motor, have attracted more and more attentions for a lot of fields. In despite of the different PMs location, the three kinds of stator PM motors share several features [1] in the structure, such as both of the PMs and armature windings are housed in the stator, the...
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