• Title/Summary/Keyword: Reluctance motor

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A Novel 6/5 Switched Reluctance Motor with Short Flux Path: Concept, Design and Analysis

  • Tanujaya, Marully;Lee, Dong-Hee;An, Young-Joo;Ahn, Jin-Woo
    • Journal of international Conference on Electrical Machines and Systems
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    • v.1 no.1
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    • pp.47-53
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    • 2012
  • A novel 6/5 switched reluctance motor (SRM) with short flux path is presented in this paper. The concept of this proposed motor is a novel SR motor with six stator and five rotor poles. The stator is constructed with three independent and physically separate C-core segments, and the rotor is composed of five poles. This motor, with a new selection for the number of stator/rotor poles, achieves a short flux path, which reduces the magnetomotive force required to drive the motor. To verify the performance of the proposed motor, a comparison with conventional SR motors with the same dimensions is executed. The comparison demonstrates that the proposed motor offers better performance in terms of maximum torque production. Furthermore, Finite Element Analysis (FEA) and Matlab/Simulink software are used to predict and simulate the performance of the proposed motor.

Performance of Passive Boost Switched Reluctance Converter for Single-phase Switched Reluctance Motor

  • Ahn, Jin-Woo;Lee, Dong-Hee
    • Journal of Electrical Engineering and Technology
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    • v.6 no.4
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    • pp.505-512
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    • 2011
  • A novel passive boost power converter forsingle-phaseswitched reluctance motor is presented. A simple passive circuit is proposed comprisingthree diodes and one capacitor. The passive circuitis added in the front-end of a conventional asymmetric converter to obtain high negative bias. Based on this passive network, the terminal voltage of the converter side is a general DC-link voltage level in parallel mode up to a double DC-link voltage level in series mode. Thus,it can suppress the negative torque generation from the tail current and improve the output power. The results of the comparative simulation and experiments forthe conventional and proposed converter verify the performance of the proposed converter.

Characteristic Analysis and Design of a Single Phase Switched Reluctance Motor for High Speed Application

  • Kim, Youn-Hyun
    • KIEE International Transaction on Electrical Machinery and Energy Conversion Systems
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    • v.4B no.3
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    • pp.114-121
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    • 2004
  • Switched reluctance motors have received much attention as a driving means for various industrial applications because they have simple construction, low cost and high efficiency. Nevertheless, the requirements of drive converters make it difficult to lower the overall system cost as compared with the DC motor application. Single phase switched reluctance motors (SPSRMs) provide a solution to the high cost problem since the number of switching power devices can be reduced and consequently the trials for application are increased. However, research involving SPSRMs, especially in the area of design work, is insufficient. This paper introduces a novel design methodology of single phase SRM. The design work for SPSRM comprises the determination of many variables such as stator and rotor pole arc as well as on, off and so on. Managing all variable combinations leads to lengthy computation time and a fault in the design process. For that reason, a reliable technique and brief procedure term are required in SPSRM design.

Design of a Switched Reluctance Motor Driving an Electric Compressor for HEVs (하이브리드 자동차(HEV) 용 전동식 컴프레서 구동을 위한 SRM 설계)

  • Jeong, Yong-Hoe;Jeon, Yong-Hee;Kang, Jun-Ho;Kim, Jaehyuck
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.62 no.5
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    • pp.620-625
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    • 2013
  • This paper presents the design of a switched reluctance motor (SRM) for electric air conditioning compressors which are applied to hybrid electric vehicles (EVs). The motor for driving air conditioning compressor which is recently used on EV(electric vehicle) / HEV (hybrid electric vehicle) is PMSM(permanent magnet synchronous motor) or BLDCM(brushless DC motor). However disadvantage of motors that uses permanent magnets are vulnerable to high temperatures because of the demagnetization by the high temperature and the permanent magnet is expensive because of the high price of rare earth materials from China's monopoly. Therefore, in the automotive insustry is interested in the non-rare-earth motors. SRM has many advantages. it's resistant to high temperatures, price is cheaper, because there are no permanent magnets and winding in the rotor. Also it's high relability and efficiency, suitable for high-speed operation because of structure is simple. In this paper, the SRM, non-rare-earth motor, are designed, analyzed and experimented drive to replace an existing electric compressor drive motor.

Control of Variable Reluctance Motors: A Comparison between Classical and Lyapunov-Based Fuzzy Schemes

  • Filizadeh, S.;Safavian, L.S.;Emadi, A.
    • Journal of Power Electronics
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    • v.2 no.4
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    • pp.305-311
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    • 2002
  • In this paper, two approaches for designing tracking controllers for a variable reluctance motor (VRM), namely the Lyapunov-based fuzzy approach and the classical approach, are compared. The nonlinear model of a VRM is first addressed. The two control schemes are introduced afterwards, and then applied to obtain tracking controllers. Simulation results of a sample case, to which the methods are applied, are also presented. Comparison of the methods based on the results obtained concludes the paper.

The Analysis of Noise Characteristics of Synchronous Reluctance Motor in the two-phase conduction operation (2상 통전 방식에 따른 동기 리럭턴스 모터의 소음 특성 분석)

  • 오재윤;정달호;김정철
    • Proceedings of the KIPE Conference
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    • 1999.07a
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    • pp.167-170
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    • 1999
  • In this paper, we operate Synchronous Reluctance Motor(SynRM) using the two-phase conduction method. Acually SynRM is operated by the sinusoidal PWM method but in home-appliance there is many restrictions of making the motor such as the method of winding, the shape of rotor etc. Therefore it is possible that there is little difference of performance between the two-phase conduction method and the sinusoidal PWM method. In this paper the characteristics of motor noise will be analyzed especially in the case of using the two-phase conduction method by experiment results.

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Modeling of Switched Reluctance Motor (SRM) Drive and Control System using Rotor Position Information Sensor (회전자 위치정보 센서를 이용한 Switched Reluctance Motor (SRM)의 구동 및 제어 시스템 Modeling)

  • Jeong, Sungin
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.21 no.3
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    • pp.137-142
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    • 2021
  • In recent years, permanent magnets such as IPM (Interior Permanent Magnet) motors or SPM (Surface Permanent Magnet) motors that can obtain high efficiency and power density by inserting rare earth permanent magnets into the rotor are used. Research on the used electric motor is being actively conducted. Since it uses a permanent magnet, it has the advantage of high efficiency and high power density compared to reluctance motors and induction motors, but by inserting a permanent magnet into the rotor, it operates at high speeds and decreases reliability due to demagnetization of the permanent magnets, and increases the cost of rare earth metals. In this paper, in accordance with the development of future technology that can replace rare-earth permanent magnet motors and technological preoccupation of rare-earth reduction type motors and de-rare-earth motors, switched reluctance motors that do not require permanent magnets (Switched Reluvtance Motors) Motor, SRM) to drive driving control. Using the 3-phase SRM library provided by the PSIM simulation program, we will study the driving and control system modeling of SRM using the rotor position information sensor.

Analysis of the Switched Reluctance motor Characteristics Considering Magnetic Nolinearity (자기적 비선형을 고려한 스위치드 리럭턴스 모터의 특성 해석)

  • 천동진
    • Proceedings of the KIPE Conference
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    • 2000.07a
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    • pp.517-520
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    • 2000
  • This paper presents models considering the magnetic nonlinear characteristics of 8/6 Switched Reluctance Motor. A $\lambda$-i equation with Fourier series parameters is shown to represent the relating to flux-linkage and current appropriately at any rotor position. And the energy conversion loop is described.

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