Study on high-efficiency characteristics of interior permanent magnet synchronous motor with different magnet material

Fang, Liang; Lee, B. H.; Lee, J. J.; Kim, H. J.; Hong, Jung-Pyo

doi:10.1109/icems.2009.5382881

Cited by 23 publications

(6 citation statements)

References 4 publications

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“…Thus, the reported works on DTFC based PMSM drive fail to optimize the efficiency of the drive. As more than 50% of the electrical energy produced in the world is consumed by electric motors, the motor control techniques should be properly developed to optimize the efficiency of the motor drives for less energy consumption and saving the environment [17][18][19][20][21][22][23][24][25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Online Loss-Minimization-Based Adaptive Flux Observer for Direct Torque and Flux Control of PMSM Drive

Uddin

Zou

Azevedo

2016

IEEE Trans. on Ind. Applicat.

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This paper presents a novel adaptive flux observer based direct torque and flux control (DTFC) of permanent magnet synchronous motor (PMSM) drive. An online loss minimization algorithm (LMA) is developed to estimate the airgap flux so that the motor operates at minimum loss condition while taking the general advantages of DTFC scheme over conventional vector control scheme. The proposed DTFC based PMSM drive incorporating the LMA based flux observer is implemented in real-time using the DSP board DS1104 for a laboratory 5 hp motor. The performance of the proposed LMA based DTFC control of PMSM drive is tested in both simulation and experiment at different operating conditions. 0093-9994 (c) Keywords-Direct torque & flux control, loss minimization, dynamic response, interior permanent magnet synchronous motor, speed control and adaptive flux observer.

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Section: Introductionmentioning

confidence: 99%

“…Several loss minimization algorithms (LMAs) for PMSM drives have been reported in the literature [17][18][19][20][21][22]. Among different LMAs the model based LMA has the advantage of fast convergence and less torque ripple as compared to the search based LMA [27].…”

Section: Introductionmentioning

confidence: 99%

Online Loss-Minimization-Based Adaptive Flux Observer for Direct Torque and Flux Control of PMSM Drive

Uddin

Zou

Azevedo

2016

IEEE Trans. on Ind. Applicat.

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“…The design presented in [11] used rare‐earth permanent NdFeB magnets including Dy. This design was able to achieve a (CPSR) as well as high efficiencies.…”

Section: Introductionmentioning

confidence: 99%

Conceptual design of sleeve rotor synchronous reluctance motor for traction applications

Reddy

Grace

El-Refaie

2016

IET Electric Power Applications

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Synchronous reluctance machines are very appealing for high speed traction motor design due to their robustness, simple structure, absence of magnets, and simple control. The absence of magnets means that synchronous reluctance (SynRel) machines are not susceptible to price variability and sustainability of rare-earth materials. Moreover, there are no concerns about demagnetisation or uncontrolled generation mode. However, the challenge of achieving a good constant power to speed ratio is dependent on the mechanical aspects of the design. Conventional SynRel designs perform poorly compared with the permanent magnet machines due to the presence of bridges and/or centre posts in absence of the magnets to help saturate these regions. In this case, the challenge of rotor mechanical retention is addressed with the help of a sleeve on the rotor to reduce the need for bridges and/or centre posts. Design optimisation including the mechanical aspects of the sleeve is presented in this study. The final design with a sleeve will be shown to be superior to a conventional design in terms of power density, rotor losses, saliency and torque ripple.

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“…When choosing the operating point of the magnets, the non-linear characteristic of ferrite magnets should be considered, while for NdFeB magnets the thermal performance should be considered to avoid over temperature (Dorrell et al, 2011). In paper (Fang et al, 2009), efficiency characteristics of IPM synchronous motors with NdFeB and ferrite magnets were studied, and eventually NdFeB magnets were chosen. However, for different applications, magnets should be chosen according to the requirements of cost and performance.…”

Section: Introductionmentioning

confidence: 99%

Optimal design of low-cost IPM AC motor

Shen

Wang

Shi

et al. 2014

COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering

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Purpose -The purpose of this paper is to present the optimal design of a low-cost interior permanent magnet (IPM) alternating current (AC) motor. It examines the influence of the permanent magnet (PM) materials, and proposes a simple and practical method of optimizing the air-gap field to achieve sinusoidal back electromotive force (EMF), and to reduce the cogging torque. Design/methodology/approach -IPM AC motors with different magnet materials and various topologies are comparatively studied. Finite element method (FEM) is used to predict the performances of these designs. Material costs and manufacture costs are both taken into account. Finally, an optimized design is prototyped and tested, validating the design considerations. Findings -In an IPM AC motor, even if the rotor outer profile is round, the air-gap field distribution can be fined, while the cogging torque can be significantly reduced, by properly shaping the stator tooth tips. Nevertheless, this technique is usually applicable to motor configurations with concentrated windings, but not to those with distributed windings. Originality/value -While using ferrite magnets for PM AC motors with a kW power, interior magnets are usually inserted in V-shaped slots, and the rotor outer profile is often shaped in order to enhance the air-gap field distribution. However, such a rotor configuration usually increases the manufacture costs, and also deteriorates the consistency of mass production. Therefore, a new motor configuration with a round rotor outer profile and shaped stator tooth tips is proposed. It can not only overcome the aforementioned problems, but also improve the motor performance.

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Study on high-efficiency characteristics of interior permanent magnet synchronous motor with different magnet material

Cited by 23 publications

References 4 publications

Online Loss-Minimization-Based Adaptive Flux Observer for Direct Torque and Flux Control of PMSM Drive

Online Loss-Minimization-Based Adaptive Flux Observer for Direct Torque and Flux Control of PMSM Drive

Conceptual design of sleeve rotor synchronous reluctance motor for traction applications

Optimal design of low-cost IPM AC motor

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