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변윤섭,조태신,윤경한,김영철 ( Yeun Sub Byun,Tae Shin Cho,Kyohg Han Yun,Young Chol Kim ) 충북대학교 산업과학기술연구소 1994 산업과학기술연구 논문집 Vol.8 No.2
Abstract_Roman The controller of electromagnetic su nsion system(EMS) is very bard to design because it is highly nonlinear in nature and unetahle. R ' y the robust stablity and performance must be guaranteed under the worst coodition. In the caee of the
변윤섭,조태신,김영철,Byun, Yeun-Sub,Cho, Tae-Shin,Kim, Young-Chol 대한전자공학회 1999 電子工學會論文誌, S Vol.s36 No.6
In this paper, we propose design methods of suspension controller for magnetically levitated system(MAGLEV). In this interior, the study of Electromagnetic Suspension(EMS) which has several advantages is chiefly achieved but, because the EMS has highly nonlinear and unstable property it is difficult to design the suspension controller maintaining stability and high performance. Here a Gain Scheduling Control(GSC) based on pole-placement scheme and on linear quadratic gaussian(LQG) design is separately presented. The several control performance is shown by simulation. 본 논문에서는 자기부상시스템의 부상제어기 설계방법을 제시한다. 국내에서는 여러 이점을 갖는 상전도부상방식에 관한 연구가 주로 수행되고 있다. 그러나 이 상전도 부상시스템은 높은 비선형성과 불안정성을 갖기 때문에 여러 외부조건에 대해서 견실한 안정도와 높은 정밀도를 유지하는 부상제어기 설계는 매우 어려운 문제이다. 본 논문에서는 극배치방식에 근거한 이득계획제어 설계기법과 LQG방식에 근거한 이득계획제어 설계기법을 제시하고 제어성능을 모의 실험을 통하여 보인다.
바이모달 저상굴절차량의 자동운전시스템을 위한 시뮬레이터 구현
류제(Ryu Je),황병일(Hwang Byoung-Il),이상남(Lee Sang-Nam),류희문(Ryu Hee-Moon),변윤섭(Byun Yeun-Sub) 한국철도학회 2009 한국철도학회 학술발표대회논문집 Vol.2009 No.5월
This paper discusses about the implementation of a simulator for the Navigation Control System(NCS) of bimodal tram. To operate a NCS of bimodal tram, values of all sorts of sensors installed in bimodal tram should be transmitted to the NCS, and the NCS calculates the measured sensor values to determine traveling direction, traveling speed, current position etc. The implementation of the simulator consists of a device applying driver’s input transaction function & virtual sensor program and a sub-rack device that controls communication with the NCS to evaluate navigation control function. The virtual sensor program can create routes (map), traveling profiles & seat information et cetera in order to transmit to the NCS, analyzes driver's input values and NCS output values to create virtual sensor values. The sub-rack device takes charge of communication with the NCS using CAN-OPEN, CAN-J1939, MVP protocols. This paper discusses about the implementation of the simulator and afterwards analyzes and evaluates the NCS simulation results.
변윤섭(Yeun-Sub Byun),김백현(Baek-Hyun Kim),강석원(Seok-Won Kang),정락교(Rag-Gyo Jeong),엄주환(Ju-Hwan Um),김현중(Hyun Jung Kim) 대한기계학회 2015 대한기계학회 춘추학술대회 Vol.2015 No.11
The real-time estimation of the relative or absolute vehicle positions is a very important for robust control of intelligent vehicles. For the sake of the vehicle positioning, GPS has been commercially utilized. However, GPS can not be applied at an environment such as tunnels or inside buildings. In the consideration of these environmental restrictions, the positioning system based on the magnetic markers was proposed for a PRT(Personal rapid transit) system. In this paper, the algorithm for compensation of the time delays in the signal processing is presented to exactly detect the position of the magnetic markers during driving on a planned path. In order to take into account the time delays in detection of the position, the errors between the reference magnetic field model and the measured signals are evaluated in both driving and lateral directions. This approach was successfully validated by experimental evaluation using a test vehicle.
변윤섭(Yeun-Sub Byun),목재균(Jei-kyun Mok),윤경한(Kyoung-Han Yun),김영철(Young-Chol Kim) 대한전기학회 2008 대한전기학회 학술대회 논문집 Vol.2008 No.10
The Bimodal tram is developed in KRRI (Korea Railroad Research Institute). This vehicle will be used in the public transportation system. The Bimodal tram has the advantages of both bus and train. Bus system has the advantages of flexibility of the routes delivering passengers to the destination and easy accessibility. Train is to meet the scheduled arrival and massive public transportations. The vehicle is the rubber tired tram and is all wheel steered single articulation. The vehicle can be automatically operated by navigation control system (NCS). For the automatic driving, the vehicle lanes will be marked with permanent magnets that are buried in the road. The control algorithm developed for navigation control has to be verified before being applied in the vehicle. In this purpose, we design the simulator for controller test of the bimodal tram.
변윤섭(Yeun-Sub Byun),엄주환(Ju-Hwan Um),김백현(Baek-Hyun Kim),강석원(Seok-Won Kang),정락교(Rag-Gyo Jeong) 한국산학기술학회 2014 한국산학기술학회 학술대회 Vol.- No.-
세계적으로 차량무인주행시스템을 기반으로 하는 PRT(Personal rapid transit) 시스템에 대한 요구 가 증가하고 있다. PRT 시스템은 레일궤도형태와 무궤도의 고무타이어방식으로 연구 진행되어 왔으며 이미 일부국가에서 상용노선과 시험노선으로 진행하고 있다. 본 논문에서는 국내에서 개발되고 있는 PRT차량의 주행제어 시스템을 제시하였다. 개발되는 차량은 자석표지를 기반으로 한 무인자동운전 시스템으로 운영을 위한 기반시설구축비용이 적은 방식이다. 차 량의 무인 자동운전을 위해 요구되는 목표사양을 만족하도록 차량 내에 구축되는 제어신호망과 전원 망을 설계되었다.