• 제목/요약/키워드: Switched reluctance motor

검색결과 651건 처리시간 0.1초

A Comparative Study of the Line Start Permanent Magnet, Skeleton Type Brushless DC, and Snail-earn Type Switched Reluctance Motor for Fans

  • Lee, Ji-Young;Lee, Geun-Ho;Hong, Jung-Pyo;Jin Hur
    • KIEE International Transaction on Electrical Machinery and Energy Conversion Systems
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    • v.4B no.3
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    • pp.122-126
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    • 2004
  • The objective of this paper is to provide a comparison between the Line Start Permanent Magnet, Skeleton type Brushless DC, and the Snail-cam type Switched Reluctance Motor. These motors are compared under the same load characteristic as the cooling fan motor of a refrigerator. The comparison consists of speed, output power, efficiency, copper loss, and cost for three different motors. For the given application, the results provide an indication of the best machine suited with respect to performance and cost.

디스크형 단상 스위치드 릴럭턴스 모터의 기본 설계 (Fundamental Design of Disk type Single-Phase Switched Reluctance Motor)

  • 이종한;이은웅;조현길;김성현
    • 대한전기학회:학술대회논문집
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    • pp.9-11
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    • 1996
  • The Switched Reluctance Motor is an electric machine in which torque is produced by the tendency of its movable part to move to a position where the inductance of the excited winding is maximized. The main advantages of this motor lie in the simple robust construction and low manufacturing cost. In this paper, we describe the design features of single-phase switched reluctance motor for low-power variable-speed drives.

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Design Using Finite Element Analysis of a Switched Reluctance Motor for Electric Vehicle

  • Ohyama Kazuhiro;Nashed Maged Naguib F.;Aso Kenichi;Fujii Hiroaki;Uehara Hitoshi
    • Journal of Power Electronics
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    • v.6 no.2
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    • pp.163-171
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    • 2006
  • In this paper, a Switched Reluctance Motor (SRM) employed in an electric vehicle (EV) is designed using the finite element method (FEM). The static torque of the SRM is estimated through magnetic field analysis. The SRM temperature rise over operation time is estimated through heat transfer analysis. First, static torque and temperature rise over the time of 600W SRM is included in the experiment set, and are compared with the calculated results using the FEM under the same conditions. The validity of the magnetic field analysis and heat transfer analysis is verified by the comparisons. In addition, a 60 [kW] SRM employed in an EV, whose output characteristics are equal to a 1500 [cc] gasoline engine, is designed under magnetic field analysis and heat transfer analysis.

An Adaptive Optimization Algorithm Based on Kriging Interpolation with Spherical Model and its Application to Optimal Design of Switched Reluctance Motor

  • Xia, Bin;Ren, Ziyan;Zhang, Yanli;Koh, Chang-Seop
    • Journal of Electrical Engineering and Technology
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    • v.9 no.5
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    • pp.1544-1550
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    • 2014
  • In this paper, an adaptive optimization strategy utilizing Kriging model and genetic algorithm is proposed for the optimal design of electromagnetic devices. The ordinary Kriging assisted by the spherical covariance model is used to construct surrogate models. In order to improve the computational efficiency, the adaptive uniform sampling strategy is applied to generate sampling points in design space. Through several iterations and gradual refinement process, the global optimal point can be found by genetic algorithm. The proposed algorithm is validated by application to the optimal design of a switched reluctance motor, where the stator pole face and shape of pole shoe attached to the lateral face of the rotor pole are optimized to reduce the torque ripple.

Control of Radial Force in Double Stator Type Bearingless Switched Reluctance Motor

  • Peng, Wei;Xu, Zhenyao;Lee, Dong-Hee;Ahn, Jin-Woo
    • Journal of Electrical Engineering and Technology
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    • v.8 no.4
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    • pp.766-772
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    • 2013
  • Modeling and control of radial force in the double stator type bearingless switched reluctance motor (BLSRM) is researched. The rotational torque is controlled independently from the radial force control. And the radial force is constant which is independent from the rotor position. In order to realize steady suspension, analytical models of torque and radial force for the proposed structure are derived. Meanwhile, in order to realize steady suspension, control scheme for proposed BLSRM is proposed. In the control method, the radial force can be controlled in arbitrary direction and magnitude by selecting some combinations of radial force windings. The validities of structure and control method are verified by the experimental results.

전기자동차 트랙션 및 무선 충전용 인휠타입 스위치드 릴럭턴스 전동기 설계 (Design of In-Wheel Type Switched Reluctance Motor for Electric Vehicle Traction and Wireless Charging)

  • 그레이스;손동호;이동희;안진우
    • 전기학회논문지
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    • v.66 no.12
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    • pp.1866-1872
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    • 2017
  • This paper presents the design of in-wheel type Switched Reluctance Motor (SRM) which can be used as both traction motor and power pickup device in a wireless charging system of electric vehicles. The SRM acts as a traction drive in driving mode and a power receiver in charging mode to avoid any additional weights. Double stator axial field SRM is used due to its structure that can be mounted inside the wheel. The charging circuit is integrated with the asymmetric converter and phase windings of SRM, reducing the cost and size of the system. Magnetic resonance is implemented to increase the efficiency. Simulations done in Maxwell and Simplorer verify the effectiveness of the proposed system.

Dynamic Analysis of Rotor Eccentricity in Switched Reluctance Motor with Parallel Winding

  • Li, Jian;Choi, Da-Woon;Cho, Yun-Hyun
    • 전력전자학회:학술대회논문집
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    • pp.85-87
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    • 2008
  • This paper presents dynamic characteristics in Switched Reluctance Motor (SRM) with rotor eccentricity and proposes the reduction method of rotor eccentricity effects by the different winding connections. These characteristics investigations are computed by 2D transient magnetic FEM analysis coupled with external circuits. The radial and unbalance magnetic force in the stator, which is the main exciting force of the vibration, is calculated using Maxwell stress method and compared with the performance characteristics according to the serial and parallel connections of windings. The influence of winding method counteracting unbalance forces on the rotor vibration behavior is estimated by the current waveforms of the paralleled paths under rotor eccentricity.

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Flyback Transformer를 갖는 Switched Reluctance Motor의 구동회로 (Drive Circuit for Switched Reluctance Motor with Flyback Transformer)

  • 임준영;조관열;백인철;신두진;김정철
    • 대한전기학회:학술대회논문집
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    • pp.833-836
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    • 1993
  • A flyback type power converter circuit for switched reluctance motor drives is presented. In this converter circuit, the energy extracted from an off going phase is stored in an additional capacitor. The energy stored is used to either be returned to the source frequently or energize the conducting phase during the conduction interval through the transformer. The additional switch to pass the energy stored in the capacitor to the source or the conducting phase is switched under a relatively low voltage condition. Its switching frequency is relatively high so that the size of the transformer can be reduced. The design guideline for the capacitor and the transformer is described. The effectiveness of the presented converter circuit is compared to other circuits through the analysis and experiment.

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이중고정자구조를 가지는 베어링리스 스위치드 릴럭턴스 전동기의 설계와 해석 (Design and Analysis of Double Stator Type Bearingless Switched Reluctance Motor)

  • 팽미;이동희;안진우
    • 전기학회논문지
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    • v.60 no.4
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    • pp.746-752
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    • 2011
  • In this paper, a novel bearingless switched reluctance motor (BLSRM) with double stator is proposed. This motor has two stators. Torque stator is outside, which mainly produces rotational torque. Radial force stator is inside, which mainly generates radial force to suspend the rotor. A novel structure and operating principle are presented. And characteristics of the proposed structure such as magnetic flux distribution, inductance, torque and radial force are analyzed through finite element method. From the analysis, the proposed BLSRM has linear characteristic of radial force and independence from torque current.

저가형 스위치드 릴럭턴스 모터 드라이브 시스템 개발 (Design and Development of Low-Cost Switched Reluctance Motor Drive System)

  • 하근수
    • 전기학회논문지
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    • v.58 no.11
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    • pp.2162-2167
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    • 2009
  • A Low cost and variable speed brushless motor drive system with single switch per phase is presented. The motor drive is realized with a novel two-phase flux-reversal-free switched reluctance motor and a split AC two switch converter. The strategy of the controller and the converter for its realization are described. Comparisons between a split AC converter, asymmetric converter, split DC converter, single controllable switch converter, and N+1 converter are performed for its device rating, cost, switching losses and conduction losses, and converter efficiency. The split AC converter is analyzed and simulated to verify the characteristics of the converter circuitry and control feasibility and the simulation results are presented. The efficiency with various loads is numerically estimated and experimentally compared from viewpoint of subsystem and system in details. The focus of this paper is to compare the presented motor drive system to the asymmetric converter system throughout experiments and demonstrate single switch per phase converter having comparable efficiency as the asymmetric converter system.