듀얼 클러치 변속기용 탈 희토류 영구자석 동기전동기 설계

박권일(Kwon-Il Park),정영훈(Young-Hoon Jung),임명섭(Myung-Seop Lim),홍정표(Jung-Pyo Hong) 한국자동차공학회 2016 한국자동차공학회 부문종합 학술대회 Vol.2016 No.5

Rare earth Permanent Magnet (PM) has been widely used in the electric motor due to the high magnetic flux density. However, minimizing the use of rare-earth permanent magnet in the electric motor is needed because of the limited supply and price fluctuation of rare-earth permanent magnets. In this paper, a method is suggested to replace the Surfaced-mounted Permanent Magnet Synchronous Motor (SPMSM) using neodymium magnet with Concentrated Flux Synchronous Motor (CFSM) using the ferrite magnet as keeping the same performance. To achieve this, various design parameters such as the width of PM, the thickness of PM, fastening part are adjusted. In result, although a 47% in volume increases compared to SPMSM, electrical characteristic under the same load condition is similar and the torque ripple has been reduced by 7%.

전기자동차 견인용 전동기의 극 수 슬롯 수 조합에 따른 전기적 특성 및 진동 특성 분석

박권일(Kwon-Il Park),차경수(Kyoung-Soo Cha),윤명환(Myung-Hwan Yoon),홍정표(Jung-Pyo Hong) 한국자동차공학회 2017 한국자동차공학회 부문종합 학술대회 Vol.2017 No.5

The greenhouse effect is getting worse in these days. To reduce this environmental problem, emission regulation in the automotive industries became strict. Accordingly, the automotive makers stared to develop the environmental friendly vehicles such as the hybrid electric vehicle(HEV) and the electric vehicle(EV). EV is an excellent alternative for conventional combustion engine vehicle. As high torque and wide operation range are essential for EV traction motor. Recently, it is necessary to design an electric motor having excellent vibration characteristics as well as electrical characteristics in accordance with the desire of the consumer who demands a comfortable riding condition. This paper deals with electrical and vibration characteristic of a traction motor for EV depending on pole-slot combination. First, four motors having the same output and different number of slots were selected. Second, the electrical characteristics such as average torque and torque ripple induced voltage of each motor were compared using finite element analysis. Third, the vibration order of the four models is calculated numerically and the vibration characteristics of each motor are compared. Finally number of pole slot combinations suitable for traction motor using the results of electrical and vibration characteristics.

효과적인 한국무용 예술경영학 연구

이영희 ( Young Hee Lee ),박권일 ( Kwon Il Park ) 한국동양예술학회 2015 동양예술 Vol.28 No.-

Some of Korean traditional dance performance are not acclaimed and can not be more than just a one time event due to trite directing and choreography that couldn`t deviate from the custom. However, for the development of dance art, and for the audience, Korean dance director and choreographer, and producer are facing a reality that have to show the face of new challenges. Business Administration in Dance Arts is planned to be introduced for effective promotion of all works of art performing by combining the Korean dance art. Dance Arts in Business Administration may be used for various applications. Stage comprehensive art works almost take advantage of the dance art. So dance art has kept a close relationship with our daily lives. Stage comprehensive art is as follows. Opera, musical, theater, music drama, dance drama, Madangguk(One of traditional Korean performance) are also included in this category. In the Korean traditional Music field, Changgeuk should also be included(Korean traditional opera). All of these comprehensive art works include dance art. At this point, dance art includes the whole dance art : Korean dance, ballet, modern dance, jazz dance, etc. For this reason, for arts performances to be performed effectively by utilizing the Korean Dance especially among these events, should maximize the effect of the stage performing art by introducing Business Administration in Dance Arts boldly and essentially. nothing is closer to people than Dance among all art works. If we move by giving a special meaning and own mind in this work, this can be a dance work. For this reason, Korean Dance has always existed in close us imperceptibly. However, this familiarity by approaching may be seen to make the misfortune to dance in a sense. Perhaps lost the presence of Korean dance works. Dance and producer did not even try to look for self-reflection for too long. Saving the dance in the reality of dance art, this is a way to create new Korean dance art works. Should creative lively and changing dance art works, and that can give pleasure to the audience. When Korean dance work meet the audience, It is effective that contains Korean image in the work. In order to maximize the performance effectiveness of Korean dance work, And until finally lifting Korean dance works the theater to meet with the audience by choreographing and directing, arts management should be combined.

NDGPS의 정적 및 동적 측위 정확도 분석

송글재(Geul-Jae Song),박권일(Kwon-Il Park),공현동(Hyun-Dong Kong) 한국항해항만학회 2008 한국항해항만학회지 Vol.32 No.8

국토해양부에서는 해양 DGPS 기준국과 연계하여 전국망 위성항법보정시스템 (NDGPS) 구축 사업을 추진 중에 있으며, 2008년 춘천 기준국이 설치 완료되면 우리나라 전역에서 실시간 DGPS 측위 정보를 이용할 수 있다. 따라서 DGPS 측위 정보의 이용 활성화를 위하여 DGPS의 측위 정확도를 측정.분석하였다 실시간 DGPS 측위 정확도는 정적 측정시 평면상 RMS (Root Mean Square) 오차는 0.42m, 동적 측정시 평면상 RMS 오차는 0.48m로 분석되었으며, RTK에 의한 비교 측정.분석도 병행하였다. 그 결과 위성항법보정시스템(DGPS)은 높은 정확도를 요구하는 GIS구축사업 분야에 직접적으로 이용될 수 없으나, 실시간 측위 정보를 필요로 하는 GIS활용 분야에서는 DGPS가 다양하게 이용될 수 있을 것이다. The Ministry of Land, Transport and Maritime Affairs is working on the construction of Nationwide DGPS(NDGPS) with connection to Maritime DGPS Reference Stations and if Chun-Cheon Reference Station is to be completed in 2008, DGPS positioning information is available in the whole area of Republic of Korea Therefore to promote the usage of DGPS surveying information, we measured and panalyzed the accuracy of DGPS. In real-time DGPS positioning accuracy were 0.42m of planar Root Mean Square(RMS) error in static survey and 0.48m of planar RMS error in dynamic survey. We went abreast with RTK comparison measurement. According to these results, DGPS positioning information cannot be applied directly to the GIS construction field, but GIS application fields, requiring the real-time positioning information. can take advantage of it in variable cases.

파라메트릭 디자인을 이용한 듀얼 클러치 변속기용 자속집중형 동기 전동기 설계

정영훈(Young-Hoon Jung),박권일(Kwon-Il Park),임명섭(Myung-Seop Lim),홍정표(Jung-Pyo Hong) 한국자동차공학회 2016 한국자동차공학회 학술대회 및 전시회 Vol.2016 No.11

This paper proposes a design process of the Concentrated Flux type Synchronous Motor (CFSM) satisfying the same performance of the conventional Surface-mounted Permanent Magnet Synchronous Motor (SPMSM). The rotor shape producing the maximum air-gap flux is determined under the same volume condition and the radius of rotor is increased to satisfy the same air-gap flux of the conventional motor. The radius of rotor is determined by parametric design. The width of teeth and yoke is recalculated considering saturation of the stator after the rotor is designed. The joint of the rotor that is composed of the magnetic core and non-magnetic part is designed by parametric design. Finally, the characteristics of the designed CFSM is compared with those of the SPMSM.

한국인의 생활무용 활성화방안 연구

이영희 ( Lee Young-hee ),박권일 ( Park Kwon-il ) 한국동양예술학회 2016 동양예술 Vol.32 No.-

It is very important that training adaptation capability for change because modern Life-Dance condition is that change is continuing at all conditions in exercise technic, teaching method, accompaniment and stage costume under the absolute influence industrial technology and science technology. There is no need to follow the trend. It seems that if ignore this change, it could decrease education effect because the people living in the present are continuing change their life habit or idea. Educatee and instructor who practice Life-Dance need posture to absorb and experience change together. It could utilize actually by selecting new Life-Dance form which is flowing from abroad and choreograph new mode Life-Dance by utilizing useful action being able to promote the health effect. This means routinized Life-Dance. If always adhere posture of Dance Activity, it could practice Life-Dance happily. Specialty of the area means educational environment around where practice Life-Dance. It means pleasant and healthy environment in the practice room, and should be able to utilize hygienically and easily for health activity by Creating an interior atmosphere. Securing suitable structure of constituent material of the flooring, lighting and sound conditions, Etc. for exercise conditions. It should be considered soundproofing with other rooms. When a loud noise was heard in the education field, class could receive interrupt. If installing a double-sided mirror in the room, material condition of the mirror surface is very important. If the mirror surface is uneven, it is difficult to accurately analyze one``s Life-Dance movement. When exercise for a long time by looking in the mirror, sometimes complain of dizziness. The beverage boxes and toilet environment should be improved. It should be possible that educatee engage in sports activities in confidence and relaxed state through composing an indoor environment of the dressing room. In the case of the elderly, it is necessary to keep in mind considering the condition of the lift to safe access. Because if slipping stairs etc., it can lead to joint damage with serious bruises. While it is true Korea Life-Dance conditions has been repeated many advances in the meantime, now it is necessary to consider the development of a qualitative type, rather than quantitative type. The gist of several suggestions to activate the Life-Dance are as follows: Everyone should be able to exercise Life-Dance and the active support measures of the administrative authorities should be made. When utilizing the Life-Dance, it is desirable to utilize a variety categories to fit physique and physical conditions of participants. Systematic and scientific teaching methods and assessment methods should be made. Avoid excessive and seeking short effects teaching methods. Education environmental improvement are actively request and should do best to prevent accidents. Improvement of lighting, sound, and soundproofing conditions are absolutely necessary in training place. It should be able to effectively take advantage of the life dance material of accompaniment, stage costume, videos, photos, video screen and dance props, Etc.

영구자석 동기전동기의 전원 주파수 6배 진동 가진원 분석

김재현(Jae-Hyun Kim),김두영(Doo-Young Kim),박권일(Kwon-Il Park),박민로(Min-Ro Park),홍정표(Jung-Pyo Hong) 대한전기학회 2018 대한전기학회 학술대회 논문집 Vol.2018 No.-

EPS용 SPMSM의 토크 리플 분석 및 저감 설계

김재현(Jae-Hyun Kim),김두영(Doo-Young Kim),박권일(Kwon-Il Park),윤명환(Myung-Hwan Yoon),홍정표(Jung-Pyo Hong) 한국자동차공학회 2017 한국자동차공학회 부문종합 학술대회 Vol.2017 No.5

Recently, hybrid vehicles and electric vehicles are attracting attention as eco-friendly vehicles, and many devices of automobiles are being replaced by electronic control devices. Hydraulic power steering(HPS) has been mainly used as a steering device for automobiles until now, but recently electric power steering(EPS) has been spreading. Since the vibration of the steering device is transmitted directly to the driver, the vibration problem must be carefully considered in the motor design for EPS. Therefore, torque ripple in the EPS should be reduced to improve the vibration characteristics. In this paper, in order to reduce the torque ripple of surface mounted permanent magnet synchronous motor(SPMSM) for EPS, the harmonic component of induced voltage is analyzed. To reduce the harmonic component of induced voltage, eccentric rotor shape is applied. Space harmonic analysis is used to determine eccentric length, and torque ripple is reduced from 8.6% to 4.2%.