• 전력전자학회:학술대회논문집
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• 전력전자학회 1998년도 전력전자학술대회 논문집
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• pp.295-298
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• 1998

A Linear Stepping Motor(LSM) can operate in an open loop control mode similarly to a rotary stepping motor. However, the LSM has a large transient vibration, and it sometimes causes the miss-step. In this paper, vibration suppression method using an energy stored in winding inductance and induced voltage of the LSM is proposed.

• 대한전기학회논문지:전기기기및에너지변환시스템부문B
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• 제52권10호
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• pp.507-513
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• 2003

Nowadays, the necessity of linear position control motors have been increased in the various fields of the automatic control system. In the recently, the position control motor have disadvantaged in the efficiency and economical view since it require a conversion equipments such as belt and gear in order to convert rotary to linear motion. On the contrary, the hybrid linear stepping motor(HLSM) of linear motion digital actuator has a direct drive method that do not need mechanical conversion equipments. Therefore, the HLSM is better advantaged in the efficiency and economical view than a rotary stepping motor. In this paper, we have designed an optimum tooth shape and a permanent magnet value between the mover teeth by the 2D finite element method(FEM) to develop the HLSM with longitudinal flux machine(LFM) type, and calculated the thrust force and normal force. And we have manufactured the prototype of it. and have experimented the thrust force and the dynamic thrust characteristics of it.

• 전력전자학회논문지
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• 제4권6호
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• pp.554-560
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• 1999

리니어 스텝핑 모터(Linear Stepping Motor : 이하 LSM이라 칭함)는 운동 변환기구 없이 입력신호에 따라 선형적인 변위를 발생시키는 다이렉트 드라이브(Direct Drive)방식의 전동기이다. 따라서 LSM은 자동반송장치, 의료기기, OA,FA 응용 등에 다양하게 사용되고 있다. 그러나 LSM은 구동시 구조적으로 큰 진동이 발생됨으로서 추력이 급격히 떨어질 때가 있으며, 최악의 경우에는 역전이나 탈조현상이 발생하고, 또한 소음의 원인이 되기 때문에 응용에 있어서 많은 제약을 받고 있는 실정이다. 여기에 대응하기 위해, 본 논문에서는 권선 인덕턴스에 저장된 에너지와 LSM의 유도전압을 이용한 새로운 1상 여자방식에 의한 진동억제 방법을 보여주며, 또한 LSM의 구조를 기초로 자기등가회로를 구성하였으며, 또한 자기등가회로에 대한 방정식을 이용하여 LSM의 전기적인 등기회로를 유도하였다. 그리고, LSM의 새로운 1상 여자방식에 의한 진동특성을 전압방정식과 추력방정식 및 운동방정식을 사용하여 ACSL에 의하여 시뮬레이션 하였으며, 레이저 실측 시스템에 의한 실측결과와 비교·검토하였다.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 1987년도 한국자동제어학술회의논문집; 한국과학기술대학, 충남; 16-17 Oct. 1987
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• pp.228-231
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• 1987

Microprocessor-based software DDA interpolator is developed and applied to two axis contouring control of X-Y table. Developed assembly program is composed of feedrate, linear and circular DDA interpolation routines. Reference-pulse type of open-loop stepping motor control system in which the micro-computer produces a sequence of reference pulses for each axis of motion is adopted. To test performance of the developed program, X-Y table drive system based on stepping motor and shaft encoder is designed. Contouring error of the system in linear and circular path is within .+-.0.2 mm.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1997년도 하계학술대회 논문집 A
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• pp.118-120
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• 1997

A Lineal Stepping Motor (LSM) can operate in an open loop control mode similarly to a rotary stepping motor. However, the LSM has a large transient vibration, and it sometimes causes the miss-step. In this paper, a new vibration suppression method using an energy stored in winding inductance and induced voltage of the LPM is proposed.

• 조명전기설비학회논문지
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• 제17권5호
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• pp.141-148
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• 2003

최근 자동제어 시스템의 다양한 분야에서 선형운동용 디지털 액튜에이터인 하이브리드형 선형 스텝핑 전동기(HLSM)의 필요성이 증대되고 있다. HLSM은 기계적인 운동변환기구가 필요하지 않는 직접 구동방식이기 때문에 효율과 경제적인 측면에서 회전형 스텝핑 전동기에 비해 매우 유리한 장점이 있다. 본 논문에서는 현재 가장 많이 연구되고 있는 자속종방향(LFM)형 HLSM의 개발을 위하여 2차원 유한요소법(FEM)으로 최적의 치 형상을 설계하고 추력과 수직력을 계산하였다. 그리고 직접 LFM형 HLSM의 시작기를 제작하고, LFM형 HLSM의 추력 특성을 실험하였다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2005년도 춘계학술대회 논문집 전기기기 및 에너지변환시스템부문
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• pp.96-98
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• 2005

This paper presents a new two-phase linear hybrid stepping motors (LHSM), which has two windings per phase and one of them shares the other phase winding. The proposed motor shows a unique ability to deliver low cogging force without any particular complex control scheme and additional power electronics hardware in micro stepping control. An analytical and experimental comparison between conventional and proposed LHSM is evaluated to confirm the effectiveness of the proposed design.

• Journal of Electrical Engineering and Technology
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• 제12권3호
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• pp.1219-1226
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• 2017

This paper presents the hybrid stepping machine for linear oscillating generators. The focus of the work is the suggestion of the improved model through the comparison of proposed models ; new flux concentrating PMs mover of the hybrid stepping generator is proposed based on the symmetrical and non-symmetrical stator cores of the surface mounted PMs mover, and non-slanted PMs and slanted PMs of the flux concentrating PMs mover. It is achieved using equivalent magnetic circuit considering leakage elements. Finally, this study suggests new hybrid stepping structure of linear oscillating generator.

• 대한전기학회논문지:전기기기및에너지변환시스템부문B
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• 제49권5호
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• pp.358-363
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• 2000

In this paper, a voltage equations, a thrust force equations and kinetic equation are derived from the basic structure of a 2-phase hybrid type linear stepping motor(HLSM). And a micro-stepping method in order to eliminate effectively the resonant phenomena and to increase the positional resolution of the HLSM was proposed. The proposed micro-stepping method can divide one step into the maximum 128 micro-steps under simple control system. The dynamic characteristics of proposed micro-stepping method were analyzed by the ACSL(Advanced Continuous Simulation Language) with the voltage equations, the thrust force equations and the kinetic equation, and were measured by laser experimental system. As the result, the justice of theory was confirmed, and the resonant phenomena, the positional resolution and dynamic thrust were improved by the proposed micro-stepping method.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1996년도 하계학술대회 논문집 A
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• pp.98-100
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• 1996

In this paper, the Two-Double 1-2phase exciting driver circuit, in order to improving the starting characteristics of Linear Stepping Motor(LSM), is designed. And the static thrust forces of LSM is measured through the chopper constant current method according to the 2 phase, the Double 1-2phase, and the Two-Double 1-2phase exciting method.