• Title/Summary/Keyword: Salient type synchronous reluctance motor

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Maximum Torque Control of Synchronous Reluctance Motor including iron loss and saturation (철손과 포화를 고려한 동기 릴럭턴스 모터의 최대토크제어)

  • Baek, Dong-Gi;Kim, Min-Tae;Hwang, Yeong-Seong;Seong, Se-Jin
    • The Transactions of the Korean Institute of Electrical Engineers B
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    • v.49 no.2
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    • pp.116-122
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    • 2000
  • In the high speed range for salient type synchronous reluctance motor, the effect of iron loss can not be negligible. We have investigated the voltage equations including iron loss from the model that is added the equivalent iron loss in the equivalent inductance in series. In this paper, we derive Ld linear approximate equation from saturation range of Ld, Lq vs applied voltage characteristics and obtain equations including saturation and iron loss related to maximum torque control using Ld. The effect of saturation and iron loss is investigated under maximum torque control. And we show that the proposed maximum torque control scheme achieves the desired performances through experimental results.

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A Study on Flux Barrier of Permanent Magnet Assisted Reluctance Synchronous Motor Design using FEM (FEM을 이용한 영구자석형 릴럭턴스 동기전동기의 자속 장벽 설계에 대한 연구)

  • Kim, Nam-Hun;Nam, Sang-Hyun;Choi, Kyeong-Ho
    • The Transactions of the Korean Institute of Power Electronics
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    • v.13 no.4
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    • pp.295-302
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    • 2008
  • This paper examines the design and the performance of a PMA-RSM(permanent-magnet assisted reluctance synchronous motor) for washing machine. A FEM(finite element method) is used to analyze performance and maximum torque characteristic of the proposed PMA-RSM. The designed motor is a combination of salient poles, which is making reluctance torque, and permanent magnet which are located on the air-gap of rotor to get a enough torque during low speed resign. Typical flux barrier type reluctance synchronous motor and the effects of adding magnet into the flux barrier of the rotor of a PMA-RSM are compared and examined. Also the maximum torque point of the reluctance torque by reluctance and reaction torque by magnetic alignment torque, which is in barrier, of the proposed PMS-RSM are derived through simulation. Using this results, the characteristics analysis of a performance, an average torque and a torque ripple of flux barrier RSM and the proposed PMA-RSM are performed through FEM under the saturation effect respectively.

Torque characteristics of Synchronous Reluctance Motor with secondary conductor bar (2차측 도체바를 갖는 동기 릴럭턴스 모터의 토크 특성)

  • Jang, Seok-Myeong;Lee, Sung-Lae;Park, Pyoung-Im;Lee, Sung-Ho;Yoon, Ki-Gap
    • Proceedings of the KIEE Conference
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    • 1999.07a
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    • pp.176-178
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    • 1999
  • The Synchronous Reluctance Motor(SynRM) was made and experimented. Salient type SynRM was manufactured by cutting two sides of the three phase squirrel case rotor. So this prototype motor has same stator and capability with the counterparts of the induction motor. The airgap flux density, inductance and torque characteristics was inspected by Finite Element Analysis (FEA). The static torque experiments was accomplished. The paper proposed the effect of rotor bar by comparing two models.

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Speed Control of High Speed Synchronous Reluctance Motor By Vector Control

  • Kim, Min-Tae;Jo, Hang-Shin;Seong, Se-Jin;Paek, Tong-Ki
    • Proceedings of the KIPE Conference
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    • 1998.10a
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    • pp.742-747
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    • 1998
  • In the High-Speed range for salient type synchronous reluctance motors, the effect of iron loss can not be negligible. In this paper, the SynRM without cage is analyzed mathematically to model and the speed control system is examined by simulation. In order to control the revolution speed, a closed-loop control with vector control and decoupling control are applied to the high-speed SynRM drives. The speed control system is analyzed to investigate the desired speed characteristics of high SynRM by simulation.

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Decoupling Vector Control for a High-Speed Synchronous Reluctance Motor (고속 동기 릴럭턴스 전동기의 비간섭 벡터제어)

  • 백동기;성세진
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.12 no.4
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    • pp.128-135
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    • 1998
  • In the high speed range for salient type synchronous reluctance motor, the effect of iron loss can not be negligible. In this paper, under he assumption that stator iron loss is generated from the equivalent eddy current in the stator, we derive the voltage equations including iron loss from the model that is added the equivalent iron loss in the equivalent inductance in series. The variation of iron loss is dependent on the increase of the operating frequency change for he worse a performance of the vector control system. As there is cross coupling between the d and q axes, it is hard to apply the vector control to the proposed model. Hence, we propose a decoupling current controller for including the effects of iron loss, And we show that the proposed vector control scheme achieves the desired performances through simulation results.

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