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이상우(Lee Sang-Woo),윤종학(Yoon Jong-Hack),최종묵(choi Jong-Mook),박계서(Park Gye-Seo) 한국철도학회 2002 한국철도학회 학술발표대회논문집 Vol.- No.-
An inverter-driven induction motor is usually adapted to the traction motor for a high speed drive system requiring safety, reliability, performance, compact size owing to the space and weight alloted for attaching to train, etc. and AC Traction motor for G7 train will be operated in the worst condition such as mechanical vibration, limited mounting space, severe thermal stress, inverter with non-sinusoidal voltage waveform, dust and so on. therefore, design procedure must be carefully carried out with considering the motor size, vibration and thermal expansion of rotor bars, insulation system, reliability of frame, as well as output characteristics. In this paper, we will inform the characteristics and design of the traction motor for G7 train and also analyze the test result of it.
박영곤(Park Young-Kon),윤희택(Yoon Hee-Taek),윤종학(Yoon Jong-Hack) 한국철도학회 2008 한국철도학회 학술발표대회논문집 Vol.- No.-
Bimodal tram is a transit with no-step floor for wheel-chaired persons, with docking to the station precisely and moving on schedule like train. Because of the automatic traveling of bimodal tram to search and follow the magnet embedded in roadway, bimodal tram should be careful about rainfall, snow and wind like a car driving on roadway in respect to natural disasters. Though response procedures in emergency are different according to the passengers" boarding, emergency mobilization is needed if any emergency situation happens. Emergency mobilization is the act of preparing for major catastrophic events, which may affect public transportation systems or their service areas, by assembling and organizing resources, including people, equipment, facilities, communications systems, expert technical support, and public information systems and protocols. Mobilization is the process that ensures that the right people will deploy appropriate resources at the correct time. Effective mobilization requires a partnership of local and state agencies. Public transportation operators and systems play vital roles in response to and recovery from emergencies and other unexpected catastrophic events. These systems, and their capabilities to mobilize resources, are profoundly affected by the decisions and directives of others during these activities. In this study, we focused on the emergency management for bimodal tram and reviewed the considerations about infrastructures under natural disasters, especially heavy rainfall.
고속전철용 견인전동기의 회전자 바와 엔드링의 재질선정 및 특성고찰에 관한 연구
이상우(Lee Sang-Woo),김근웅(Kim Kun-Woong),윤종학(Yoon jong-Hack),이기호(Lee Ki-Ho),한성수(Han Sung-Soo) 한국철도학회 1998 한국철도학회 학술발표대회논문집 Vol.- No.-
An inverter-driven induction motor is used as the traction motor for a high speed drive system that required safty, reliability and performance and so on. rotor bar and end ring of the traction motor are the electrical equipments which form the conductive close loop and then induce current by interaction with the current of stator, the materials selection of rotor bar and end ring are seriously considered in the aspects of electrical and mechanical specification and Motor slip relation to inverter. Particularly motor slip guarantee the safty and reliability of induction motor, this paper show the material selection and the determining of slip in the design of traction motor for high speed train by analyzing the specifications of material being used currently.
김동명(Kim Dong-Myung),박영호(Park Yeong-Ho),윤종학(Yoon Jong-Hack),한성수(Han Sung-Soo) 한국철도학회 2000 한국철도학회 학술발표대회논문집 Vol.- No.-
This paper deals with the basic design of the traction motor(TM) by performing the train performance simulation(TPS). The TPS, considering running condition, provides some important information about selecting the rating of TM such as current, power and frequency, etc. Especially, calculating the current flowing into the TM by the TPS in the situation of normal condition and M-car cut out respectively, we can inspect whether the TM endures thermally under the contingency or not. This paper reviews the tractive effort of the train to meet the demands of consumer and then designs the TM electrically. Finally, performing the TPS under emergency condition, it checks the thermal capacity of the TM to insure the justice of the TM under construction.
한국형 고속전철용 견인전동기의 포화현상에 따른 특성연구
이상우(Lee Sang-Woo),김근웅(Kim Kun-Woong),윤종학(Yoon jong-Hack),한성수(Han Sung-Soo) 한국철도학회 1999 한국철도학회 학술발표대회논문집 Vol.- No.-
An inverter-driven induction motor is used as the traction motor for a high speed drive system that required safety, reliability, performance, compact size owing to the space and weight alloted for attaching to train, etc. particularly it is possible to happen the saturation effects of flux density at constant voltage-frequency region and then increase very higher than the allowed capacity of no-load current and temperature in any case. therefore the optimum design of core, optimum voltage-frequency ratio, adoption of high grade magnetic core have been developed and researched for preventing these problems, this paper show the saturation effects of traction motor by measuring the induced voltage of search coil at stator teeth and presents optimum voltage-frequency ratio as well as optimum core design through the comparison with efficiency, power factor, load current and no-load current for korea high speed train.
권병일(Kwon Byung-Il),박승찬(Park Seung-Chan),김병택(Kim Byung-Taek),곽승용(Kwak Seung-Yong),이기호(Lee Gee-Ho),윤종학(Yoon Jong-Hack),김근웅(Kim Geun-Woong),이상우(Lee Sang-Woo) 한국철도학회 1998 한국철도학회 학술발표대회논문집 Vol.- No.-
Three phase squirrel cage induction motor is generally adopted as a traction motor to drive high speed trains because of its robustness for surrounding environment and easy maintenance. In the design of traction motor, reduction of weight is very important in order to reduce kinetic energy to accelerate the vehicle. Therefore, in this paper, design variables of a preliminary designed traction motor to minimize its weight is determined using the optimization technique. Before the optimization process, rotor slot number is determined to reduce vibration and noise by the analysis of magnetic force. As a result, a design example to reduce weight by 12% than that of the preliminary designed motor is presented.