Reluctance synchronous machines and drives pdf

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reluctance synchronous machines and drives pdf

PhD thesis, Concordia University. The current electric vehicle market, as well as many other industrial applications, is heavily focused on the application of permanent magnet PM machines and induction machines IM. However the limitations of these two types of electric machines reveal the necessity for further research in the field of electrical machines to substitute the existing types with less expensive, and more fault tolerant machines. The synchronous reluctance machine SynRM is a singly excited machine with great potential to replace permanent magnet machines and induction machines in traction, as well as many other industrial applications. The rotor structure is simple and only made of steel laminations, which makes the manufacturing procedure less expensive compared to PM machines and IMs. Moreover the absence of rotor windings and a rotor cage eliminates the rotor copper loss, thus enhancing the efficiency compared to IMs.
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Reluctance Synchronous Machines and Drives Monographs in Electrical and Electronic Engineering

ΦAbstract -- Induction motor and synchronous reluctance motor are promising are fed by a variable speed drive executing suitable control algorithms to.

Advanced Motor Technologies: Reluctance Motors

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There are two large families of reluctance motor with distinct constructional and operational features: synchronous reluctance motors and switched reluctance motors. Synchronous reluctance motors employ a virtually standard polyphase stator having a relatively large number of teeth, slots and overlapping coils. As in polyphase synchronous motors proper i. However, in contrast with these more common motors whose torque can be ascribed to B. Unable to display preview. Download preview PDF.

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A synchronous electric motor is an AC motor in which, at steady state , [1] the rotation of the shaft is synchronized with the frequency of the supply current ; the rotation period is exactly equal to an integral number of AC cycles. Synchronous motors contain multiphase AC electromagnets on the stator of the motor that create a magnetic field which rotates in time with the oscillations of the line current. The rotor with permanent magnets or electromagnets turns in step with the stator field at the same rate and as a result, provides the second synchronized rotating magnet field of any AC motor. A synchronous motor is termed doubly fed if it is supplied with independently excited multiphase AC electromagnets on both the rotor and stator. The synchronous motor and induction motor are the most widely used types of AC motor.


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  1. has been expended on improving the torque capability of the synchronous reluctance type of motor drive. Based on the analysis presented in this paper.

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