• 제목/요약/키워드: switched reluctance motor

검색결과 644건 처리시간 0.141초

Design and Analysis of a Segmental Rotor Type 12/8 Switched Reluctance Motor

  • Zhang, Hongtao;Lee, Dong-Hee;Lee, Chee-Woo;Ahn, Jin-Woo
    • Journal of Power Electronics
    • /
    • v.14 no.5
    • /
    • pp.866-873
    • /
    • 2014
  • In this paper, a novel 12/8 segmental rotor type switched reluctance motor (SRM) is proposed for cooling fan applications. Unlike conventional structures, the rotor of the proposed structure is constructed from a series of discrete segments, and the stator is constructed from two types of stator poles: exciting and auxiliary poles. Moreover, in this structure, short flux paths are taken and no flux reversion exists in the stator. While the auxiliary poles are not wound by the windings, which only provide the flux return path. When compared with the conventional SRM, the proposed structure increases the electrical utilization of the machine and decreases the core losses, which may lead to a higher efficiency. To verify the proposed structure, the finite element method (FEM) and Matlab-Simulink are employed to get the static and dynamic characteristics of the proposed SRM. Finally, a prototype of the proposed motor was tested for characteristic comparisons.

전자기 해석법에 의한 직선형 스위치드 릴럭턴스 전동기의 회로정수 도출 및 동특성 해석 (Analysis on Dynamic Characteristic and Circuit Parameter of Linear Switched Reluctance Motor by Electromagnetic Analytical Method)

  • 박지훈;고경진;최장영;장석명
    • 전기학회논문지
    • /
    • v.59 no.2
    • /
    • pp.318-327
    • /
    • 2010
  • This paper deals with analysis on dynamic characteristic and circuit parameter of linear switched reluctance motor by electromagnetic analytical method. Above all, using space harmonic method, which is electromagnetic method, the air-gap flux density is analyzed in the both align and unaign positions, and the inductance profile, force characteristic and resistance per phase are calculated by means of the process. The validity of the analyzed results are demonstrated by the finite element method(FEM) and manufacture of the prototype machine. Second, the dynamic simulation is analyzed by the use of circuit parameters derived from analytical method, and the operating system of the prototype machine is manufactured to demonstrated the validity of simulation analysis. As a result, it is considered that the characteristic equation suggested in this paper will contribute to the design, analysis and application of LSRM.

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
    • /
    • v.66 no.12
    • /
    • pp.1866-1872
    • /
    • 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.

인접한 스위치 온 타임 비교를 통한 SRM의 센서리스 제어 (Sensorless Control for Switched Reluctance Motor by Comparing Two Consecutive Switch-on times)

  • 양형열;김재혁
    • 조명전기설비학회논문지
    • /
    • v.24 no.4
    • /
    • pp.185-191
    • /
    • 2010
  • 본 논문에서는 인덕턱스의 변화에 따른 전류 변화율을 모니터링 하여 회전자의 속도 및 위치를 추정하는 센서리스 구동방법을 제안한다. 전류의 변화율은 히스테리시스 전류제어 방법을 이용하여 인접한 두 스위치 온 타임을 비교함으로써 간단히 측정할 수 있다. 제안된 방법은 복잡한 계산이나 별도의 하드웨어를 필요치 않으므로 구현이 용이하다. 시뮬레이션과 실험 결과는 제안한 방법의 실효성을 보여준다.

전기자동차 용 전동식 컴프레서를 위한 스위치드 릴럭턴스 모터의 센서리스 제어 (Sensorless control of Switched Reluctance Motor for Electric AC Compressors of Electrical Vehicles)

  • 전용희;김재혁
    • 조명전기설비학회논문지
    • /
    • v.28 no.10
    • /
    • pp.37-42
    • /
    • 2014
  • This paper discusses study of sensorless control of a variable speed switched reluctance motor (SRM) for electric AC compressors on electrical vehicles. A typical SRM drive requires a position sensor such as an encoder or hall sensor to measure the angular rotor position. However, harsh environment in electrical AC compressors for electric vehicles makes it difficult to use the position sensor in their motor drive system. Therefore, a sensorless control scheme for electric compressor motors utilizing magnetic characteristics of SRM with respect to position angle and phase current is proposed. The overall variable speed SRM drive with position sensorless control scheme has been modeled using Matlab/Simulink software and closed loop current control simulation is presented to validate the proposed sensorless drive control.

Analysis of Neural Network Approaches for Nonlinear Modeling of Switched Reluctance Motor Drive

  • Saravanan, P;Balaji, M;Balaji, Nagaraj K;Arumugam, R
    • Journal of Electrical Engineering and Technology
    • /
    • v.12 no.4
    • /
    • pp.1548-1555
    • /
    • 2017
  • This paper attempts to employ and investigate neural based approaches as interpolation tools for modeling of Switched Reluctance Motor (SRM) drive. Precise modeling of SRM is essential to analyse the performance of control strategies for variable speed drive application. In this work the suitability of Generalized Regression Neural Network (GRNN) and Extreme Learning Machine (ELM) in addition to conventional neural network are explored for improving the modeling accuracy of SRM. The neural structures are trained with the data obtained by modeling of SRM using Finite Element Analysis (FEA) and the trained neural network is incorporated in the model of SRM drive. The results signify the modeling accuracy with GRNN model. The closed loop drive simulation is performed in MATLAB/Simulink environment and the closeness of the results in comparison with the experimental prototype validates the modeling approach.

Effect of Material Properties on Core Loss in Switched Reluctance Motor using Non-Oriented Electrical Steels

  • Kartigeyan, J.;Ramaswamy, M.
    • Journal of Magnetics
    • /
    • v.22 no.1
    • /
    • pp.93-99
    • /
    • 2017
  • The effort attempts to investigate the influence of various non-oriented electrical steel sheets on the core loss of a switched reluctance motor (SRM). The core loss of the motor inherits a strong correlation with flux density and permeability of the material. The study involves the use of laminated 2.7 % high silicon steel suitable for the motor in view of its higher flux density and lower core loss. The accurate prediction of core loss leaves way to suggest measures for improving the performance of the SRM. The dynamic simulation measurements of a 1.5 kW, three-phase 12/8 SRM involve the finite element method (FEM) and use the data obtained experimentally from Epstein frame. The closeness of the simulated and hardware results obtained with laminations of M400-50A, DI MAX-M19 and DI MAX-M15 both for the stator and rotor, espouse a greater significance to the findings in terms of the core loss density and forge new dimensions for its use in the drive industry.

Adaptive Control of Switched Reluctance Motor Drives under Variable Torque Applications

  • Namazi, Mohammad Masoud;Rashidi, Amir;Koofigar, Hamidreza;Saghaiannejad, Seyed Morteza;Ahn, Jin-Woo
    • Journal of Electrical Engineering and Technology
    • /
    • v.12 no.1
    • /
    • pp.134-144
    • /
    • 2017
  • This paper presents an adaptive control strategy for the speed control of a four-phase switched reluctance motor (SRM) in automotive applications. The main objective is to minimize the torque ripples, despite the unstructured uncertainties, time-varying parameters and external load disturbances. The bound of perturbations is not required to be known in the developing of the proposed adaptive-based control method. In order to achieve a smooth control effort, some properties are incorporated and the proposed control algorithm is constructed using the Lyapunov theorem where the closed-loop stability and robust tracking are ensured. The effectiveness of the proposed controller in rejecting high perturbed load torque with smooth control effort is verified with comparing of an adaptive sliding mode control (ASMC) and validated with experimental results.

Modified C-dump 컨버터를 이용한 자동차 냉각시스템 SRM 제어 (Control of SRM with Modified C-dump Converter in Cooling System of Automobiles)

  • 윤용호
    • 전기학회논문지
    • /
    • v.66 no.8
    • /
    • pp.1297-1302
    • /
    • 2017
  • Recently, SRMs are used in automobiles for power assistant steering, accessory motion control and traction drives. Especially in the motion control and traction drives, safety and efficiency are of paramount importance. The paper describes the essential elements faced in designing and constructing driving circuits for a switched reluctance motor for automobiles. An important factor in the selection of a motor and a drive for industrial application is the cost. The switched reluctance motor(SRM) is a simple, low-cost, and robust motor suitable for variable-speed as well as servo-type applications. With relatively simple converter and control requirements, the SRM is gaining an increasing attention in the drive industry. This paper presents a modified C-dump converter for Switched Reluctance Motor (SRM) machine application in the cooling system of automobiles. The experiments are performed to verify the capability of applicate control method on 6/4 salient type SRM.

Electromagnetic and Vibration Analysis of E-core Switched Reluctance Motor with Permanent Magnets and Auxiliary Windings

  • Saranya, S.;Balaji, M.
    • Journal of Power Electronics
    • /
    • v.19 no.2
    • /
    • pp.540-548
    • /
    • 2019
  • In this work a new configuration of E-core stator Switched Reluctance Motor (SRM) with permanent magnets and auxiliary windings embedded in the stator yoke is proposed. For the proposed configuration of SRM electromagnetic analysis is performed using Finite Element Analysis (FEA) based computer aided design package MagNet and to emphasize its merits a comparison is drawn with existing hybrid excitation configuration of SRM. In addition, the vibration characteristics of the motor are analyzed by performing modal and transient analysis using the ANSYS package. Results of the analysis reveals that the proposed configuration of SRM exhibits better electromagnetic and vibration characteristics and is capable of competing with the existing topologies in the variable speed market.