• 제목/요약/키워드: Linear DC Motor

검색결과 157건 처리시간 0.053초

자립형 이동로봇 구동을 위한 직류 서보전동기 PLL 속도제어 시스템에 관한 연구 (A Study on PLL Speed Control System of DC Servo Motor for Mobile Robot Drive)

  • 홍순일
    • Journal of Advanced Marine Engineering and Technology
    • /
    • 제17권3호
    • /
    • pp.60-69
    • /
    • 1993
  • The speed control associated with dc servo motors for direct-drive applications of mobile robot is considered in this study. Robot is moved by power wheeled steering of two dc servo motors mounted to it. In order to cooperate with micro-computer and to achieve the high-performance operation of dc servo motor, speed control system is composed of a digital Phase Locked Loop and H-type drive circuit. And the motor is driven by Pulse Width Modulations. In controlling PWM, it is modified to compose of H-type drive circuit with feedback diodes and switching transistor and design of control sequence so that it may show linear characteristics. As a result, speed characteristics of motor showed linear features. In order to get data on design of PLL control system, the parameters of 80[W[ motor & robot device is measured by simple software control. The PLL speed control system is schemed and designed by leaner drive circuit and measured parameters. A complete speed control system applied to 80[W] dc servo motor showed good linearity, stability and high response. Also, it is verified that the PLL speed control system has good compatibility as a mobile robot driver.

  • PDF

반송용 리니어 DC 모터의 듀얼모드 위치제어에 관한 연구 (A study on the Dual mode Control of Linear DC motor for Carrier)

  • 임달호;윤상백;이우균
    • 대한전기학회:학술대회논문집
    • /
    • 대한전기학회 1994년도 추계학술대회 논문집 학회본부
    • /
    • pp.83-85
    • /
    • 1994
  • This paper describes the dual mode control of the LDM(Linear DC motor) for carrier. The dual mode control consists of seek and analogue control. In seek mode, LDM is moved in the shortest time by switching line, and in analogue mode keeps at origion with high accuracy. We proposed different switching line method according to driving direction.

  • PDF

수정된 시크 모드를 이용한 반송용 리니어 DC 모터의 위치제어에 관한 연구 (A study on the Position Control of Linear DC Motor for Carrier by using the modified Seek Mode Control)

  • 임달호;윤상백;이우균
    • 대한전기학회:학술대회논문집
    • /
    • 대한전기학회 1995년도 하계학술대회 논문집 A
    • /
    • pp.74-76
    • /
    • 1995
  • This paper describes the precise position control of the linear DC motor for carrier. We analyze the switching line of seek mode control and propose the modified switching line according to the mass and distance. Experimental results demonstrate that good performance is achieved by the proposed controller.

  • PDF

MOVING MAGNET형 LDM의 설계해석 (Design and Analysis of Moving Magnet Type LDM)

  • 백수현;박영호;이준철;함중걸
    • 대한전기학회:학술대회논문집
    • /
    • 대한전기학회 1993년도 하계학술대회 논문집 B
    • /
    • pp.951-953
    • /
    • 1993
  • This study presents a design methods for linear DC motor and the designed motor is analyzed. To design the linear DC motor, magnetic circuit design is introduced and characteristics of LDM is analyzed by using the voltage equation aid dynamic equation. And the thrust characteristics are investigated using MEXWELL 2D.

  • PDF

리니어 모터를 이용한 고속비진원 가공용 공구이송장치의 특성연구 (The Characteristics of High-speed Noncircular Machining Tool Feed Systme using Linear Motor)

  • 서준호;민승환;김성식;이선규
    • 한국정밀공학회:학술대회논문집
    • /
    • 한국정밀공학회 1995년도 추계학술대회 논문집
    • /
    • pp.985-990
    • /
    • 1995
  • Recently, the development of high speed and high precision NC-lathe for piston head machining is needed for the complexity and diversity of the piston head shape used in automobile reciprocating engine. THe piston head has many complex shapes in the aspect of fuel economy, such as ovality, profile, double ovality and recess. Among them, for the maching of the over shape of 0.1~1mm the cutting tool should move periodically symchronized with the rotation of piston workpiece. The cutting tool feeed system must have high positioning accuracy for the precise machining, high speed for the fast maching and high dynamic stiffness for the cutting force. The linear brushless DC motor is used for satisfying these coditions. The ballbush guide and supporting guide using turcite is used for the guidance of the feed drive system. Linear encoder, digital servo ampllifer and controller are used for driving the motor. THis paper presents the design and simulation of the new tool feed system for noncircular machining.

  • PDF

DC 편의된 다상 입력을 이용한 횡자속 선형 유도 전동기의 부상/추진 독립제어 (Decoupling Control of Levitation and Thrust Motion of The Transverse Flux Linear Induction Motor Using DC-biased Multi Phase Inputs)

  • 정광석;허진혁;백윤수
    • 대한기계학회논문집A
    • /
    • 제28권11호
    • /
    • pp.1733-1740
    • /
    • 2004
  • In the transverse flux linear induction motor(TFLIM) with the general secondary composed of conductor and back-yoke, there exists a magnetized force into the normal direction or the air-gap direction of the thrust motion as well as the thrust force. Therefore, the various methodologies have been tried to use the normal force by the two independent control variables of the multi-phase input. But, as the force depends inevitably and strongly on the thrust force, it is essential to decouple both forces for two control index. In this paper, we suggest a novel approach capable of compensating the couple between both forces and the control index by using the DC-biased multi-phase input, and then realizing the independent control of TFLIM.

공작기계용 고출격 리니어모터 개발 II (Development of High Thrust Linear Motor for Machine Tool II)

  • 정재한;박재한;정시욱
    • 한국공작기계학회:학술대회논문집
    • /
    • 한국공작기계학회 2004년도 춘계학술대회 논문집
    • /
    • pp.347-353
    • /
    • 2004
  • Due to various advantages over the conventional linear motion device such as ball-screw, linear motors have been used in wide variety of industrial applications for years. Driven by increased demand for precision machine tools, the importance of high positioning accuracy, high stiffness and high thrust are greatly increasing. The merits of linear motor are high speed high acceleration and good positioning accuracy. In addiction, Linear motor for high qualify machine tool call for high thrust, high stiffness. In this paper, thrust ripple, detent force and thermal behavior are considered for the development of high performance linear motor whose thrust is up to 1,900N. This paper presents a comprehensive study for an iron core type linear motor characteristics that include the influence of PM position on thrust ripple by detent force and motor dynamics as well.

  • PDF

공작기계용 고추력 리니어모터 개발 (Development of High Thrust Linear Motor for Machine Tool)

  • 정재한;박재한;정시욱
    • 한국공작기계학회:학술대회논문집
    • /
    • 한국공작기계학회 2004년도 추계학술대회 논문집
    • /
    • pp.363-368
    • /
    • 2004
  • Due to various advantages over the conventional linear motion device such as ball-screw, linear motors have been used in wide variety of industrial applications for years. Driven by increased demand for precision machine tools, the importance of high positioning accuracy, high stiffness and high thrust are greatly increasing. The merits of linear motor are high speed, high acceleration and good positioning accurcy. In addition, Linear motor for high quality machine tool call for high thrust, high stiffness. In this paper, thrust ripple, detent force and thermal behavior are considered for the development of high performance linear motor whose thrust is up to 10,000N. This paper presents a comprehensive study for an iron core type linear motor characteristics that include the influence of PM position on thrust, thrust ripple by detent force and motor dynamics as well.

  • PDF

공작기계용 고추력 리니어모터 개발 (Development of High Thrust Linear Motor for Machine Tool)

  • 정재한;박재완;박재한;정시욱
    • 한국공작기계학회:학술대회논문집
    • /
    • 한국공작기계학회 2002년도 추계학술대회 논문집
    • /
    • pp.423-428
    • /
    • 2002
  • Due to various advantages over the conventional linear motion device such as ball-screw, linear motors have been used in wide variety of industrial applications for years. Driven by increased demand for precision machine tools, the importance of high positioning accuracy, high stiffness and high thrust are greatly increasing. The merits of linear motor are high speed, high acceleration and good positioning accurcy. In addition, Linear motor for high quality machine tool call for high thrust, high stiffness. In this paper, thrust ripple, detent force and thermal behavior are considered for the development of high performance linear motor whose thrust is up to 4,000N. This paper presents a comprehensive study for an iron core type linear motor characteristics that include the influence of PM position on thrust, thrust ripple by detent force and motor dynamics as well.

  • PDF

설계 파라미터와 DC link 전압에 의한 직선형 영구자석 동기 모터 시스템 설계 (Design of Pamanent Magnet Linear synchronous Motor System by parameter estimation and DC link voltage.)

  • 장석명;유대준;장원범;최장영;서정출
    • 대한전기학회:학술대회논문집
    • /
    • 대한전기학회 2005년도 제36회 하계학술대회 논문집 B
    • /
    • pp.1080-1082
    • /
    • 2005
  • This paper presents the system design of permanent magnet linear synchronous machine with double-side PM mover and slotless iron-cored stator in the required speed and thrust. in this paper, the design of manufacturing motor is optimized by characteristics of motor parameters with the variation of PM size and coil turns. And, the permissible operating range of manufactured motor by determination of base speed and base thrust according to switching scheme of DC link voltage are offered. Finally, the results of analytical solutions are verificated by finite element analysis and experiment.

  • PDF