• Title, Summary, Keyword: Line start

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A study on the transient characteristics in Single-phase Line-start Permanent Magnet (단상 유도동기 전동기(LSPM)의 과도 특성에 관한 연구)

  • Jung, Dae-Sung;Lee, Ju;Ree, Cheol-Jick
    • Proceedings of the KIEE Conference
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    • pp.631-632
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    • 2006
  • This paper is written by research for the transient characteristics of the Single-phase Line-start permanent Magnet. The Single-phase Line-start permanent Magnet is most likely to substitute for Single-phase Induction Motor which is used about many appliance currently, because that has good points. For example, It has a Line-start of ability and a High-efficiency. And it need not power convergence device. The rotor of The Single-phase Line-start permanent Magnet has cage-bar with permanent magnet. This motor is started by cage-bar. When it entered synchronous condition, the rotor is rotated by the permanent magnet. But the design of the permanent magnet is very important, because the breaking torque of the permanent magnet interrupt to start a rotor. Finally, if Flux Barrier is not concerned, we do not get result of our object. Therefore this thesis is concerned about Flux Barrier.

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Optimal Design for Starting -Torque of Line-Start Permanent Magnet Synchronous Motors (직립 기동 영구자석 동기전동기의 기동토크 최적화 설계)

  • Kim, Byong-Kuk;Moon, Ji-Woo;Kim, Mi-Jung;Lee, Byung-Jun;Cho, Yun-Hyun
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.56 no.8
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    • pp.1390-1396
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    • 2007
  • The line-start permanent magnet synchronous motor has a high efficiency and an advantage in constant speed operation regardless of the effect of load variation. However, it is difficult to predict the performance of characteristics accurately, because of the unbalanced starting torque with the initial starting position of the rotor and the generation of a break torque. In this paper the dynamic characteristics of the line-start permanent magnet synchronous motor are described and compared with those of the squirrel-cage induction motor through the simulation to find the characteristics of the permanent magnets and the rotor bars in the line-start permanent magnet synchronous motor. Finally this paper gives the comparison between the simulation results and the experimental results.

Dynamic Analysis of Line Start Permanent Magnet Motor Considering Magnetization (착자를 고려한 Line Start Permanent Magnet Mortor의 동특성 해석)

  • Lee, C.G.;Kwon, B.I.
    • Proceedings of the KIEE Conference
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    • pp.15-17
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    • 2002
  • In this paper, we analyse the dynamic characteristic of 3-phase line start permanent magnet motor considering magnetization. Magnetization vector of NdFeB is obtained from the 2-D FEM magnetization analysis. And comparing the proposed analysis with conventional analysis method, we know that it is necessary to consider magnetization in dynamic analysis.

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Characteristic Analysis & Design of Line start Synchronous Reluctance Motor to substitute for Induction Motor (유도전동기 대체용 유도기동형 동기 릴럭턴스전동기의 특성해석 및 설계)

  • Oh, Young-Jin;Ryu, Sung-Lae;Lee, In-Woo
    • Proceedings of the KIEE Conference
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    • pp.933-935
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    • 2005
  • This study investigates Characteristic analysis of Line-start Synchronous Reluctance Motor to substitute for Induction Motor. The results of machine characteristics are analyzed by simulation using Flux2D. Characteristic analysis result of Line-start Synchronous Reluctance Motor is confirmed by the analysis result of 3-Phase Induction Motor.

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Characteristic Analysis & Design of Line-start Synchronous Reluctance Motor to substitute for Induction Motor (3.7kW 유도전동기 대체용 유도기동형 동기 릴럭턴스전동기의 특성해석 및 설계)

  • Oh, Young-Jin;Ryu, Sung-Lae;Lee, In-Woo
    • Proceedings of the KIEE Conference
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    • pp.235-237
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    • 2005
  • This study investigates Characteristic analysis of Line-start Synchronous Reluctance Motor to substitute for Induction Motor. The results of machine characteristics are analyzed by simulation using Flux2D. Characteristic analysis result of Line-start Synchronous Reluctance Motor is confirmed by the Experimental result.

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Transient Characteristics of Capacitor Run Single-Phase Line-Start Synchronous Motors (콘덴서 구동형 단상 유도형 동기전동기의 과도특성)

  • Kang, Gyu-Hong;Lee, Sun-Kwon;Hong, Jung-Pyo;Kim, Gyu-Tak
    • Proceedings of the KIEE Conference
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    • pp.831-833
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    • 2001
  • Line-start motor has ability to start itself without using other methods, so, it is important to predict starting performance accurately. In this paper, the starting characteristics of single-phase capacitor-start, capacitor-run line-start motor was calculated by combination of d-q axis voltage equations and mechanical dynamic equations. D-q axis inductances of this machine varied with current phase angle and amplitude are considered. The validity of analysis method verified by comparing to test results.

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Comparison of the Single-phase Line-start Permant Magnet Motor's Transient Characteristics by Size and Position of Rotor Bar (영구자석 매입형 단상 유도 동기 전동기의 회전자 바의 크기와 위치에 따른 기동 특성 비교)

  • Kwon, S.H.;Yang, B.Y.;Kwon, B.I.;Lee, C.G.
    • Proceedings of the KIEE Conference
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    • pp.933-935
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    • 2003
  • The single-phase line start permanent magnet motor(LSPM) have a rotor cage bar for induction starting and permanent magnets, providing synchronous torque. So, LSPM is vary complex and difficult to analysis transient characteristics and rotor design. In this paper, F.E.M analysis about single-phase line start permanent magnet motor and compare of the single-phase line start permanent magnet synchronous motor's transient characteristics by size and position of rotor bar.

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Optimal Design and Dynamic Characteristic Analysis of Line Start Permanent Magnet Synchronous Motor (직립 기동 영구자석 동기전동기의 최적설계 및 동특성 해석)

  • Kim, Do-Sun;Kim, Byong-Kuk;Lee, Byung-Jun;Cho, Youn-Hyun
    • Proceedings of the KIEE Conference
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    • pp.92-94
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    • 2008
  • The interest in permanent magnet synchronous motor is present in a wide area of applications, ranging from high-performance servo drive to line-start application[1]. The are mainly two reasons for this trend: first low rotor losses and second the foiling prices of high-energy magnets. In this paper the dynamic characteristic of the line-start permanent magnet synchronous motor are described and compared with those if the squirrel-cage induction motor through the simulation to find the characteristics of the permanent magnets and the rotor bar in the line-start permanent magnet synchronous motor.

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Optimal Design for Starting-Torque of Line Start Permanent Magnet Synchronous Motor (직립 기동 영구자석 동기 전동기의 기동 토크 최적화 설계)

  • Kim, Byong-Kuk;Hwang, Dong-Won;Kim, Tae-Hyun;Jo, Won-Yung;Lee, In-Jae;Han, Sung-Jin;Cho, Yun-Hyun
    • Proceedings of the KIEE Conference
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    • pp.930-932
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    • 2005
  • The line-start permanent magnet synchronous motor has a high efficiency and an advantage in constant speed operation regardless of the effect of load variation. However it is difficult to predict the performance of characteristics accurately, because of the unbalanced starting torque with the initial starting position of the rotor and the generation of a break torque. In this paper the dynamic characteristics of the line-start permanent magnet synchronous motor are described and compared with those of the squirrel-cage induction motor through the simulation to find the characteristics of the permanent magnets and the rotor bars in the line-start permanent magnet synchronous motor.

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Character Analysis for Break-Torque of Line-Start Permanent Magnet Synchronous Motors (직립 기동 영구자석 동기 전동기의 브레이크 토크 특성 해석)

  • Kim, Byung-Kuk;Kim, Tae-Hyun;Jo, Won-Yung;Lee, In-Jae;Cho, Yun-Hyun
    • Proceedings of the KIEE Conference
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    • pp.86-88
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    • 2005
  • The line-start permanent magnet synchronous motor has a high efficiency and an advantage in constant speed operation regardless of the effect of load variation. However it is difficult to predict the performance of characteristics accurately, because of the unbalanced starting torque with the initial starting position of the rotor and the generation of a break torque. In this paper the dynamic characteristics of the line-start permanent magnet synchronous motor arc described and compared with those of the squirrel-cage induction motor through the simulation to find the characteristics of the permanent magnets and the rotor bars in the line-start permanent magnet synchronous motor.

  • PDF