전기기관차용 대용량 주변환장치 성능시험 방법에 대한 고찰

이재욱(Jae-Wook Lee),김형균(Hyung-Gyun Kim),박신(Shin Park),박영호(Yeong-Ho Park) 한국철도학회 2013 한국철도학회 학술발표대회논문집 Vol.2013 No.5

전기기관차는 동력 집중식으로 기관차 내에 주변환장치를 통해서 추진제어장치와 보조전원장치에 전력을 공급하는 방식으로 일반 전동차에 비해 용량이 매우 크다. 일반 전동차의 경우 동력 분산식으로 동력차 1량당 출력이 800~1000kW 정도로 작으나, 전기기관차의 경우 동력차 1량의 견인전동기 한 대당 출력이 1000Kw를 뛰어넘는 대용량이다. 따라서 제작사에서 이러한 대용량 전기기관차를 성능시험 하는데 있어서 시험 설비 및 시스템 구성에 고려해야 할 사항이 많다. 본 논문에서는 화물형 전기기관차의 전장품 시스템 구성과 성능시험시 필요한 설비구성, 성능시험결과에 대해 소개하고자 한다. Electric Locomotive is concentrated power system and has the way provide to propulsion system and auxiliary power system through the main power unit. General subway train is power distribution system and the output of power driving car is low and commonly 800 ~ 1000Kw. But electric locomotive’s output per one traction motor is easily exceed 1000kw. So, there are several important point to organize electric locomotive’s test facilities and system formation in manufacture company. In this paper, we explain freit electric locomotive’s electric equipment system composition and test facilities composition which are needed for perpormance test and test result.

철도 작업선내 하이브리드 전기기관차 운영을 위한 기초 연구

김학성(Hag-Seoung Kim),김경태(Kyoung-Tae Kim),권용장(Young-Jang Kwon),방연근(Youn-Keun Bhang) 한국철도학회 2012 한국철도학회 학술발표대회논문집 Vol.2012 No.10

우리나라 전철화율은 경부 고속철도 개통을 기점으로 2003년 21%대에서 2004년 47%대로 증가하였으며 이후 매년 4.25% 대의 지속적인 전철화 증가세를 보이고 있다. 전기철도는 수송력 증강, 에너지 절감으로 동력비 및 CO₂ 배출 감소 등 많은 장점을 가지고 있으나 컨테이너 상·하역 작업을 위한 작업선 등에서는 컨테이너 상하역기인 리치 스태커와 트랜스 크레인 등의 사용으로 인하여 안전상의 문제로 전철 가선을 설치하지 못하고 운영함으로써 전기 기관차 운영에 애로 구간으로 되어 있다. 이에 본 연구에서는 가선이 없는 구간인 철도 작업선에서 입환 등의 운영이 가능한 배터리 하이브리드 전기 기관차에 대한 기술적 요구 사항과 운영 방법 등을 확인하였다. The rate of electrification leapt from 21% to 47% right after the KTX line began commercial service in 2004 since then the rate has been continuously increased by 4.25% every year. The electric railway has a lot of advantages such as more transport capacity and less energy consumption so that the cost of fuel and green-house gases were reduced significantly. However, all most of railway freight terminals and container yards are operated without catenary system in Korea because of reach stackers and trans cranes for container handling. In consequence, these railway freight facilities are causing difficulties in operation of electric locomotive. Therefore, in this paper, the technical requirements of developing battery hybrid locomotive powered by battery and electricity motor to overcome these difficulties were investigated as well as the barriers of technologies were analysed.

8200대 전기기관차 Matlab 모델링 및 제어 알고리즘에 관한 고찰

이환,정노건,김재문,Lee, Hwan,Jung, No-Geon,Kim, Jae-Moon 대한전기학회 2017 전기학회논문지 Vol.66 No.1

In this paper, the converter and traction system of 8200 electric locomotive is modeled using matlab simulation module. And the characteristic was analyzed through simulation of the combined system of converter and inverter for controling 8200 electric locomotive. The validity of the simulation was proved through performing unit power factor control of converter and speed control of inverter.

The Methodology for Energy Efficiency on Electric Locomotive Traction for the Heaviest and Longest Trains in the Operation of the Kazakh Railway

Baurzhan Alzhanov,Sidorova Nataliya 한국철도학회 2017 International Journal of Railway Vol.10 No.2

Country-specific greenhouse gas emission factors of diesel-electric locomotive in Korea

Kim, Yong-Ki,Lee, Jae-Young,Rhee, Youngho,Chun, Yoon-Young Elsevier 2017 TRANSPORTATION RESEARCH PART D-TRANSPORT AND ENVIR Vol.57 No.-

<P><B>Abstract</B></P> <P>This study developed the country-specific greenhouse gas emission factors as the Tier 3 level defined by IPCC guideline for the diesel-electric locomotives that have been currently being operated as line-haul railway traffic in the domestic transport sector of Korea. In order to apply the operating conditions as more specific data for the Tier 3 approach, the concentrations of CO<SUB>2</SUB>, N<SUB>2</SUB>O, and CH<SUB>4</SUB> were investigated using the notch changes of diesel-electric locomotive under load tests. The measurement results found, for the greenhouse gas emissions in accordance with the power generated from diesel consumption, that the CO<SUB>2</SUB> were 282g/kWh while idling and 701g/kWh at the maximum output (notch 8), respectively. In addition, CH<SUB>4</SUB> were 0.0394g/kWh while idling and 0.0103g/kWh at the maximum output (notch 8), and N<SUB>2</SUB>O were 0.0181g/kWh while idling and 0.0107g/kWh at the maximum output (notch 8), respectively. The country-specific greenhouse gas emission factors were calculated through analyzing the activity data for the use frequency percentage of notch according to the operation mode at the travel service section of the main domestic routes using the diesel-electric locomotives. Finally, the greenhouse gas emission factors were proposed to be CO<SUB>2</SUB> =442g/kWh, CH<SUB>4</SUB> =0.0241g/kWh, and N<SUB>2</SUB>O=0.0136g/kWh. This study is the first attempt to develop the country-specific greenhouse gas emission factors considering of the operation conditions of railcars in Korea.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Greenhouse gas emission factors were first developed for diesel-electric locomotives in Korea. </LI> <LI> The Korean-specific emission factors reflecting operation conditions were developed. </LI> <LI> As the power and diesel consumption increased, the CO<SUB>2</SUB> and N<SUB>2</SUB>O emissions increased. </LI> <LI> The CH<SUB>4</SUB> emissions showed no tendency with the engine power and diesel consumption. </LI> <LI> The frequency percentage of using engine load during locomotives’ journey was investigated as a weighting factor. </LI> </UL> </P>

IGBT 소자를 이용한 8200 대 전기기관차 추진제어용 컨버터 제어

정노건(No-Geon Jung),장진영(Chin-Young Chang),김양수(Yang-Su Kim),김재문(Jae-Moon Kim) 한국철도학회 2013 한국철도학회 학술발표대회논문집 Vol.2013 No.5

8200 대 전기기관차가 도입된 이래로 추진제어 시스템의 주요장치인 전력변환시스템은 주 회로 스위칭 소자로서 GTO(Gate Turn-Off) 사이리스터를 적용하고 있다. 하지만 전력변환시스템을 구성하고 있는 주요 부품의 단종과 일부 부품의 확보가 어려워짐에 따라 유지보수비용이 크게 증가하게 되고 고장수리에 대해 신속한 대응이 어려운 실정이다. 따라서 본 논문은 8200 대 전기기관차에 대한 추진제어기술을 확보하기 위하여 최근 많이 적용되고 있는 IGBT(Insulated Gate Bipolar Transistor)를 이용하여 8200 대 전기기관차 추진제어용 컨버터를 모델링하고 제어에 따른 동작특성을 분석하였다. Power conversion system that is major unit of the propulsion control system has applied GTO thyristor as a switching semiconductor device of main circuit since introduction of the 8200 electric locomotive. But problem that quick maintenance is difficult and its cost is increasing occurs because major components of the power conversion system are discontinued. In this paper, it was analyzed the control performance characteristic of the 8200 electric locomotive propulsion control converter modeling using IGBT which is applied recently to ensure propulsion control technology.

Motion control of joystick interfaced electric wheelchair for improvement of safety and riding comfort

Choi, Jung Hyun,Chung, Younghun,Oh, Sehoon Elsevier 2019 Mechatronics Vol.59 No.-

<P><B>Abstract</B></P> <P>Nowadays powered wheelchairs are widely utilized to help people’s locomotion. However, many commercialized powered wheelchairs still provide unsatisfactory ride quality, which is mainly due to not-well-designed control algorithm. To address this issue, this paper proposes a motion control algorithm that can improve the safety and riding comfort of the user and can be easily implemented on a powered wheelchair.</P> <P>To design the controller in an intuitive way, locomotion mode of a wheelchair is suggested at first, which consists of the longitudinal mode and the rotational mode. Then, the motion reference generator, wheelchair motion observer and control algorithms are designed in this locomotion mode.</P> <P>Moreover, this locomotion mode-based motion control does not require encoders, which makes the implementation of the algorithm affordable for many commercialized wheelchairs.</P> <P>The detail of the controller and state observer is studied, and experimental results to verify the validity of the proposed controller and the state observer are explained.</P>

8200대 전기기관차 Matlab 모델링 및 제어 알고리즘에 관한 고찰

이환(Hwan Lee),정노건(No-Geon Jung),김재문(Jae-Moon Kim) 대한전기학회 2017 전기학회논문지 Vol.66 No.2

In this paper, the converter and traction system of 8200 electric locomotive is modeled using matlab simulation module. And the characteristic was analyzed through simulation of the combined system of converter and inverter for controling 8200 electric locomotive. The validity of the simulation was proved through performing unit power factor control of converter and speed control of inverter.

25년 사용 된 디젤전기기관차 운전실 노동여건 특성 연구

이찬우(C. W. Lee) 한국정밀공학회 2010 한국정밀공학회 학술발표대회 논문집 Vol.2010 No.11월

가동 브라킷 구조물의 내구 성능 향상 방안 연구

박용석(Park, Yong-Suk),서정범(Seo, Jeong-Beom) 한국산학기술학회 2011 한국산학기술학회논문지 Vol.12 No.3

전차에 전기를 공급하는 장치인 가동 브래킷 구조물은 전차가 통과할 때 반복적인 하중을 받는다. 이러한 반복하중은 가동 브래킷 구조물을 구성하는 나사들을 풀리게 하는 가진원이 되고 있다. 본 논문에서는 전산 시뮬레이 션을 이용하여 반복적인 진동에 의한 볼트 풀림에 대한 원인과 대책에 대하여 연구하였다. 그 결과 전산 시뮬레이션 모델이 구축되어 가동브래킷 구조물의 동적응답 해석이 가능하게 되었다. 가동 브래킷 구조물의 볼트 풀림에 대한 주 된 가진 주파수 영역이 200 Hz 미만임을 확인하였으며, H 빔의 강성을 증가함으로써 볼트풀림을 방지할 수 있음을 알 수 있었다. 아울러 볼트 풀림 원인이 되는 300, 600Hz 대역에서 발생하는 하부밴드 브라킷의 진동 모드를 확인 하였으며, 강성을 올리는 것은 200Hz 이상에서의 볼트 풀림을 방지할 수 있는 효과를 나타냄을 확인하였다. The movable bracket structure, which is an apparatus for supplying electric power to a running electric locomotive, is applied by a repeated load during the passage of the electric locomotive. Such a repeated load becomes an excitation source that causes screws constituting the movable bracket structure to be loosened. This study was conducted on the causes and countermeasures of the bolt loosening caused by the repeated vibration using a computer simulation. As the result, a simulation model was constructed to enable the dynamic analysis of the movable bracket structure. It could be found that the principal excitation frequency range for the bolt loosening of the movable bracket structure was less than 200 Hz. In addition, the bolts are prevented from being loosened by increasing stiffness of H beams. The vibration mode of a lower band bracket is found to be triggered in a frequency range between 300 and 600 Hz. And the increase in stiffness of the lower band bracket exhibits the effect to avoid the bolt loosening at a frequency range of 200 Hz or more.