Power capability of salient pole permanent magnet synchronous motors in variable speed drive applications

Schiferl, R.F.; Lipo, T.Α.

doi:10.1109/ias.1988.25037

Cited by 163 publications

(28 citation statements)

References 6 publications

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“…Recently, interior (or buried) magnet machines, have emerged. The machine has narrow airgap and salient pole [10] structure. Torque is contributed by both excitation and reluctance torques.…”

Section: Permanent Magnet Motor Drivesmentioning

confidence: 99%

A Status Review of Different Industrial Drives

Adil¹,

Singhai²

2016

IJEEE

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In almost all industries adjustable-speed motor drives are used.Electric drives have inherent advantages over other prime movers.Conventionally, dc motors have been used in such applications.However, moderndevelopments in semiconductor power electronics, microelectronics and artificial intelligence have made it possible to use ac motors in many variable speed drive applications. Introduction of new control techniques, like vector control, variable-structure control with sliding-mode features have made ac motorsviable alternatives to dc motors in high-performance drive applications. These complex techniques have been made possible due to implementation of microprocessors / microcontrollers / microcomputers/soft computing techniques (GA, Fuzzy Logic, ANN). In this paper development of the control is discussed, focusing on recent trends suitable for practical applications in industry with good dynamic behaviour.

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Section: Permanent Magnet Motor Drivesmentioning

confidence: 99%

A Status Review of Different Industrial Drives

Adil¹,

Singhai²

2016

IJEEE

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“…Interior Permanent Magnet (IPM) motors are attractive in many applications for their flux weakening capability, associated with good torque density and high efficiency [1][2]. With respect to induction motors, IPM motors show a better compactness [3], and a smaller inverter size when a large constant power speed range (CPSR) is required, since the pull-out torque limit [4] can be shifted at theoretically infinite speed with a proper motor design [5].…”

Section: List Of Symbolsmentioning

confidence: 99%

“…The considerations in the following are based on the simplified magnetic model (1)- (2), where the machine linked flux vector () is split into the PM flux vector (subscript m) and the reluctance flux vector (subscript r), that is the one of the basic SR machine, before the PMs are inserted into the rotor.…”

Section: A Pm-assisted Synchronous Reluctance Motor Modelmentioning

confidence: 99%

Design Tradeoffs Between Constant Power Speed Range, Uncontrolled Generator Operation, and Rated Current of IPM Motor Drives

Pellegrino

Vagati

Guglielmi

2011

IEEE Trans. on Ind. Applicat.

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A closed-form approximate formulation is proposed to establish a relationship between the uncontrolled generator operation of IPM motors at high speed and the constant power speed range and drive current capabilities. High saliency IPM motors of the PM-assisted synchronous reluctance type are mainly considered in the analysis, since they are proved to have the most favorable ratio between flux weakening capability and uncontrolled generator voltage. The results of the analysis show the tight relationship between the uncontrolled overvoltage and the constant power speed range of the drive. Moreover, where the uncontrolled voltage is higher, the relationship between the constant power speed range and the motor current amplitude becomes stiffer: for small current variations a large reduction of the speed range can occur. The analysis is validated experimentally on two motors of very different size (500 W and 1 MW).

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“…The power factor and the constant power speed range (CPSR) can be improved thanks to the insertion of permanent magnets in rotor layers. The obtained machine is referred to as a Permanent Magnet-assisted SyR motor or, simply, an Interior Permanent Magnet (IPM) synchronous motor [1,2]. One key-issue in the design of such machines is to define the rotor geometry, that presents many degrees of freedom (number and shape of the layers, PM grade and placement).…”

Section: Introductionmentioning

confidence: 99%

A SyR and IPM machine design methodology assisted by optimization algorithms

Cupertino

Pellegrino

Armando

et al. 2012

2012 IEEE Energy Conversion Congress and Exposition (ECCE)

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The design optimization of synchronous reluctance (SyR) machine and its extension to internal permanent magnet (IPM) motors for wide speed ranges is considered in this paper by means of a Finite Element Analysis-based multi-objective genetic algorithm (MOGA). The paper is focused on the rotor design, that is controversial key aspect of the design of high saliency SyR and IPM machines, due to the difficult modeling dominated by magnetic saturation. A three step procedure is presented, to obtain a starting SyR design with the optimal torque versus torque ripple compromise and then properly include PMs into the SyR geometry, given the desired constant power speed range of the final IPM machine. The designed rotors have been extensively analyzed by computer simulations and two SyR prototypes have been realized to demonstrate the feasibility of the design procedure. I.

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Power capability of salient pole permanent magnet synchronous motors in variable speed drive applications

Cited by 163 publications

References 6 publications

A Status Review of Different Industrial Drives

A Status Review of Different Industrial Drives

Design Tradeoffs Between Constant Power Speed Range, Uncontrolled Generator Operation, and Rated Current of IPM Motor Drives

A SyR and IPM machine design methodology assisted by optimization algorithms

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