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박찬배(Chan-Bae Park),이형우(Hyung-Woo Lee),김재희(Jae-Hee Kim),이준호(Jun-Ho Lee),이병송(Byung-Song Lee) 한국철도학회 2012 한국철도학회 학술발표대회논문집 Vol.2012 No.10
본 논문에서는 철도차량 추진용 매입형 영구자석 동기전동기(Interior Permanent Magnet Synchronous Motor, IPMSM)의 운전 중 열 발생 특성 분석을 위한 열해석 기법 연구를 수행하였다. IPMSM의 구동 중에 권선, 코어, 영구자석에서 발생되는 과도한 열은 IPMSM의 장시간 연속운전을 어렵게 만들기 때문에, IPMSM에서 발생된 열의 효율적인 냉각이 중요하다. 따라서 본 연구에서는 IPMSM의 냉각장치 적용을 위한 선행 연구로써 IPMSM 의 열 발생 특성분석을 위하여 IPMSM의 각 구성품에 대한 열전달 계수를 도출하고, 열 등가회로를 구성하여 열해석을 수행하는 열해석 기법 연구를 수행하였다. 또한 IPMSM 실 모델의 열 실험 데이터와의 비교를 통한 열해석 기법의 유효성 검증을 수행하였다. In this paper, research on thermal analysis method is conducted for the characterization of heat generation during operation of Interior Permanent Magnet Synchronous Motor (IPMSM) for railway vehicles. Efficient cooling of the heat generated in the IPMSM is important because the excessive heat generated from the winding, core and permanent magnet makes it harder for a long time continuous operation of IPMSM. Therefore, in order to analyze the heat generation characteristics of the IPMSM as advanced research for application the IPMSM to the cooling device, the heat transfer coefficients for each component of the IPMSM were derived and the thermal equivalent circuit was configured to perform the thermal analysis in this study. Finally, the validation of the suggested thermal analysis method was performed through the comparison with the heat experimental data of IPMSM prototype.
박찬배(Chan-Bae Park),이병송(Byung-Song Lee),이형우(Hyung-Woo Lee) 대한전기학회 2012 전기학회논문지 Vol.61 No.8
Traction motors for driving and power conversion devices using semiconductor switch are equipped with a transportation systems such as an electrical railway system. Power conversion devices have the possibility of malfunction by external electromagnetic waves. As a result, these could affect the safe operation of the railway. Moreover, the electromagnetic waves above safe limits will be harmful to the passengers inside the railway vehicles or anyone working around the rail-track. For this reason, the importance and need about the reliability check and complement of electromagnetic waves generated from the IPT(Inductive Power Transfer) system have been suggested for the safe application of the IPT system to the railway system. In this study, prediction for the electromagnetic wave properties was conducted through FEM(Finite Element Method) analysis of 5kW-class IPT system design model. Next, the 5kW IPT system prototype was made and then the small-scaled railway vehicle was made to mount the IPT system and the energy management system. Finally, the electromagnetic waves generated from the real small-scaled IPT system were measured and analyzed, and then the reliability check of predictions by FEM analysis were carried out.
박찬배(Chan-Bae Park),이형우(Hyung-Woo Lee),이병송(Byung-Song Lee),정호성(Ho-Sung Jung),김기병(Ki-Byung Kim),김철섭(Chul-Sub Kim) 한국철도학회 2011 한국철도학회 학술발표대회논문집 Vol.2011 No.5
Inductive power transfer module(IPTM) is a contact-less power supply device and its application range has been extended to the large capacity devices such as electric vehicles, industrial mover and railway system as well as small capacity devices such as electric toothbrush charger, celluar phone charger, and so on. For railway application, the IPTM will transfer energy while train stops at a station for around 30[sec]. Therefore, equivalent circuit parameters and coupling coefficient of IPTM are an important design factor for the high energy transfer efficiency. This paper investigates the properties of equivalent circuit parameters and coupling coefficient of U-U type IPTM and U-I type IPTM using an analytical method and experimental method. Considering the coupling coefficient of the U-U type is larger than U-I type’s, the U-U type is suitable for an application which need maximum power transfer and high efficiency.
휠-레일 방식 초고속열차용 초전도 선형동기전동기의 지상권선 방식별 특성 분석
박찬배(Chan-Bae Park),이병송(Byung-Song Lee),이창영(Chang-Young Lee) 대한전기학회 2014 전기학회논문지 Vol.63 No.8
Recently, an interest in a hybrid system combining only the merits of the conventional wheel-rail system and Maglev propulsion system is growing as an alternative to high-speed maglev train. This hybrid-type system is based on wheel-rail method, but it enables to overcome the speed limitation by adhesion because it is operated by a non-contact method using a linear motor as a propulsion system and reduce the overall construction costs by its compatibility with the conventional railway systems. Therefore, the design and characteristic analysis of a coreless-type superconducting Linear Synchronous Motor (LSM) for 600km/h very high speed railway system are conducted in this paper. The designed coreless-type superconducting LSMs are the distributed winding model, the concentrated 1 layer winding model and the concentrated 2 layer winding model, respectively. In addition, the characteristic comparison studies on each LSM are conducted.
초고속열차용 축소형 PM-LSM과 EM-LSM의 변환 설계 연구
박찬배(Chan-Bae Park),이병송(Byung-Song Lee),이형우(Hyung-Woo Lee),김남포(Nam-Po Kim),한경희(Kyung-Hee Han) 대한전기학회 2009 대한전기학회 학술대회 논문집 Vol.2009 No.7
일반적으로 자기부상열차는 고속, 내구성, 안전성 등을 만족하는 가장 적합한 시스템 중 하나로 부각되고 있다. 300[㎞/h] 이하의 중저속 자기부상철도의 경우, 추진용으로 선형유도전동기가 사용되고 있으며, 초고속 자기부상철도의 경우, 선형유도전동기보다 고효율, 고출력의 특성을 가지는 선형동기전동기가 사용되고 있다. 한국철도기술연구원에서는 2008년도부터 700[㎞/h]급 초고속튜브열차용 선형동기전동기 연구를 시작하였으며, 추진/부상 일체형 권선형 선형동기전동기 연구를 수행하고 있다. 따라서 본 논문에서는 초고속튜브열차용 선형동기전동기 연구의 일환으로, 축소형 영구자석형 선형동기전동기(PM-LSM)의 수학적 방법에 의한 기본설계를 수행하였으며, 이를 이동자만을 고려한 자기 등가회로법을 이용하여 권선형 선형동기전동기(EM-LSM)로 변환 설계를 수행하였다. 또한 설계된 PM-LSM과 EM-LSM 모델의 FEM 해석을 이용한 특성 분석을 통하여 본 논문에서 제안한 변환 설계기법의 정확도 검증 연구를 수행하였다.
600km/h급 초고속열차용 선형동기전동기의 고정자-이동자 방식에 따른 특성 연구
박찬배(Chan-Bae Park),이준호(Jun-Ho Lee),이병송(Byung-Song Lee),김재희(Jae-Hee Kim),이수길(Su-Kil Lee),정신명(Shin-Myung Jung),이형우(Hyung-Woo Lee) 한국철도학회 2013 한국철도학회 학술발표대회논문집 Vol.2013 No.5
최근 500km/h 이상의 초고속 자기부상열차 실용화가 늦어지면서 이에 대한 대안으로 기존의 휠-레일 방식과 자기부상 추진방식의 장점만을 혼합한 하이브리드 철도시스템에 대한 관심이 커지고 있다. 이러한 하이브리드 철도시스템은 휠-레일 방식에 기초하지만, 추진시스템으로 기존의 회전형 전동기가 아닌 선형전동기를 이용하기 때문에, 비점착구동이 가능하여 기존의 휠-레일 추진방식에 의한 속도한계를 극복할 수 있다. 따라서 본 논문에서는 휠-레일 지지방식과 선형전동기 추진방식을 가지는 초고속열차용 선형동기전동기의 고정자와 이동자의 다양한 방식 변화에 따른 전자기적 특성 변화를 FEM을 이용하여 분석하였으며, 600km/h급 초고속열차용 선형동기전동기에 적합한 방식으로 공심형 초전도 LSM을 제안하였다. Recently, an interest in a hybrid system combining only the merits of the conventional wheel-rail system and Maglev propulsion system is growing as an alternative to high-speed maglev train. This hybridtype system is based on wheel-rail method, but it enables to overcome the speed limitation by adhesion because it is operated by a non-contact method using a linear motor as a propulsion system and reduce the overall construction costs by its compatibility with the conventional railway systems. Therefore, a comparative analysis on electromagnetic characteristics according to the structural combinations on the stator-mover of Linear Synchronous Motor(LSM) for Very High Speed Train(VHST) maintaining the conventional wheel-rail method is conducted, and the structure of coreless superconducting LSM suitable for 600 km/h VHST is finally proposed in this paper.