• Title/Summary/Keyword: switched reluctance motor (SRM)

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Characteristics Analysis of SRM according to Pole Ratio (SRM의 극수비 변화에 따른 특성 해석)

  • Hwang, Hyung-Jin;Moon, Jae-Won;Ahn, Jin-Woo
    • Proceedings of the KIEE Conference
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    • 2003.10b
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    • pp.36-38
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    • 2003
  • This paper shows a characteristics analysis of Switched Reluctance Motor(SRM) for design optimization. The static and dynamic characteristics are analysised by simulation case of 6/4 and 12/8pole machine. The torque, efficiency and acoustic noise are tested to compare drive performances.

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A Study on Characteristics Analysis of Switched Reluctance Motor (스위치드 릴럭턴스 모터의 특성해석에 관한 연구)

  • 김영문
    • Proceedings of the KIPE Conference
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    • 2000.07a
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    • pp.713-716
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    • 2000
  • In this paper a simple theory is presented to represent characteristic of a SRM and theoretical results are compared with experimental ones. In the theory the inductance variation of a SRM are approximated as linear and winding resistance and the magnetic saturation are ignored. With these approximations we derived some equations expressing load characteristics of a SRM Also the torque ripple was removed by applying a variable hysteresis band control.

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Design of single phase SRM for the Blower considering the Torque Ripple (토오크 리플을 고려한 송풍기 구동용 단상 SRM의 설계)

  • Lee, Jong-Han;Lee, Eun-Woong
    • Proceedings of the KIEE Conference
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    • 2004.10a
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    • pp.101-103
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    • 2004
  • The single phase switched reluctance motor has many merits in practical use because it has simple operating drives and control systems, very high energy density per unit volume comparing with three phase SRM. But it has also problems which is a starting device and torque ripple. One of the major problems is torque ripple which causes increased undesirable acoustic noise and possibly speed ripple. This paper describes an approach to determine optimum magnetic circuit parameters to minimize the torque ripple.

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A Comparison of the Characteristics by SRM Drives Using Search Coils (서치코일을 이용한 SRM의 구동법 비교)

  • Yang H. Y.;Shin D. S.;Lim Y. C.
    • Proceedings of the KIPE Conference
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    • 2004.07b
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    • pp.926-930
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    • 2004
  • This paper presents a comparison of the characteristics by two types of switched reluctance motor (SRM) drives using search coils, Exterior pole search coil and Interior central pole search coil, which are used for estimation of the rotor position. The advantages and disadvantages of the two types of drive methods are also described.

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New SRM converter connected to the voltage source inverter (전압형 인버터가 연결된 새로운 방식의 SRM 컨버터)

  • Jang Do-Hyun
    • Proceedings of the KIPE Conference
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    • 2004.07a
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    • pp.260-264
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    • 2004
  • In this paper the novel converter topology for the switched reluctance motor drives is proposed, which is composed of the minimum switch per phase and is connected to the single-phase voltage inverter for ac voltage source. The proposed converter topology is divided into two types according to the voltage source inverter of half bridge type and full bridge type. Proposed converters of two types are proposed, analyzed and compared with each other. The SRM using proposed converter maintain the hi인 efficiency though the power switches are reduced.

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A ZVT applied SRM converter (ZVT 방식을 적용한 SRM 구동용 컨버터)

  • 김원호;조정구;김종수;임근희
    • Journal of the Korean Institute of Telematics and Electronics B
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    • v.33B no.12
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    • pp.106-112
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    • 1996
  • A ZVT (zero voltage transition) converter for SRM (switched reluctance motor) drives is proposed in this study. By adding a ZVT-chopping switch in the front-end, all switches in the machine side converter can be operated without any chopping to regulate phase current. This allows the use of low-cost and slow-switching devices for the machine side converter. The ZVT circuitry allows high frequency operation of th echopping switch, which enhnaces the system dynamcis and phase-current ripples. High efficiency of th eintegrated converter is obtained due to low switching losses.

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A Neuro-Fuzzy Based Torque Ripple Minimization of Switched Reluctance Motors (뉴로퍼지기법에 의한 SRM의 맥동토오크 최소화)

  • 박한웅;원태현;박성준;추영배;김철우;황영문
    • Proceedings of the KIPE Conference
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    • 1998.07a
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    • pp.197-199
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    • 1998
  • A neuro-fuzzy based torque profile model of SRM with considerably improved accuracy is obtained using the measured data for training. The inferred torque profiles, which comprise magnetic non-linearities, represent the dynamic model of SRM. Then the reference torque signal with optimized waveform and switching angle are decided to control the torque directly. Hence, the presented scheme controls the torque in an instantaneous basis, allowing powerful torque control with minimum torque ripple even during the transient operation of the motor. Simulation and experimental results demonstrating the effectiveness of the proposed torque control scheme are presented.

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Development Trends in SRM Technology (SR전동기 기술개발 동향)

  • Ahn Jin-Woo
    • Proceedings of the KIPE Conference
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    • 2002.07a
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    • pp.263-266
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    • 2002
  • The Switched Reluctance Motor(SRM) drive system could operate in a very wide speed range with high efficiency There are no windings, no magnet and a brushless structure on the rotor, and there is only multi-phase centralized windings on the stator, those give rise to its simple and firm structure. It has good Prospects for application. such as industrial and home appliance. in aircraft. This paper is to show a development trends in SRM technology.

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A New Start-Up Algorithm for 4/2 Switched Reluctance Motor (4/2 스위치드 릴럭턴스 모터의 새로운 초기 기동 알고리즘)

  • Ahn, Min-Jae;Kim, Jae-Hoon;Kim, Rae-Young
    • Proceedings of the KIPE Conference
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    • 2014.07a
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    • pp.249-250
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    • 2014
  • 본 논문은 스위치드 릴럭턴스 전동기(SRM)의 센서리스 초기 기동을 위한 새로운 방법을 제안한다. 일반적으로 정지된 SRM을 기동하기 위해서는 회전자 위치정보가 필요하고 이는 전동기의 전압방정식을 이용하여 얻을 수 있다. 간단한 상 전환 알고리즘을 이용하여 이를 구현하였다. 상 전환이 이루어지는 시점은 히스테리시스 전류 제어기를 사용하여 전류제어 범위를 벗어나는 현상을 통해 찾아 내었다. 검증에는 4/2 SRM을 사용하였고 센서를 하나만 사용하여[1] 전류를 제어하는 방식을 적용하였다. 이 알고리즘의 실험을 통하여 타당성을 검증하였다.

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