유압식 인버터 엘리베이터의 속도제어를 위한 하이브리드 퍼지제어기의 설계

한권상,김병화,안현식,김도현,Han, Gueon-Sang,Kim, Byoung-Hwa,Ahn, Hyun-Sik,Kim, Do-Hyun 대한전자공학회 2001 電子工學會論文誌-SC (System and control) Vol.38 No.1

인버터를 적용한 유압식 엘리베이터 시스템은 펌프의 마찰과 실린더 패킹 및 탑승카와 레일의 마찰특성으로 인하여 PID 제어기로는 제어가 되지 않는 데드존이 생기게 된다. 본 논문에서는, 이러한 문제를 해결하기 위하여 먼저, 퍼지제어기와 PID제어기를 혼용하는 하이브리드제어기를 이용하는 방법을 시도한다. 그러나, 인버터를 적용한 유압식 엘리베이터는 비선형성이 강한 시스템이므로 두 제어기의 출력이 절환 되어야 하는 경계층이 다수인 경우가 대부분인데 반하여, 기존의 하이브리드제어기는 두 제어기의 출력이 절환되는 특정구간의 경계층을 제외하고는 전체 운전구간에서는 어느 한 제어기에만 영향을 받게 되므로 제어성능에 문제를 가지게 된다. 이에 따라 본 논문에서는, 출력혼합기의 출력비를 퍼지로직에 의하여 변경시키는 새로운 퍼지하이브리드제어기를 제안하여 기존의 하이브리드제어기의 문제점을 해결한다. 제안된 퍼지하이브리드제어기는 시스템의 상태에 따라서 두 제어기의 출력비를 달리하여 사용하는 방법으로 향상된 제어성능을 달성한다. 시뮬레이션 결과를 통하여, 제안된 퍼지하이브리드제어기가 극저속 속도영역에서 뿐 아니라 정상상태를 포함한 전 운전 영역에서의 제어 성능이 우수함을 보였다. Due to the friction characteristics of cylinders and the rail of a passenger car, in the elevator actuated with hydraulic systems, there exist dead zones, which can not be controlled by a PID controller. To overcome the drawbacks, in this paper, we first try a hybrid controller which switches between a fuzzy logic controller and a PID controller. However, because the hybrid control scheme uses only a single type controller, except the switched layer, the high control performance can not be achieved. To solve this problem, we propose a new type fuzzy hybrid control scheme, which outputs of the output mixer arc controlled by a fuzzy logic. The hydraulic elevator system controlled by inverters has more then one switched layers due to the highly nonlinear characteristics. The proposed fuzzy hybrid control scheme achieves improved control performances by using both controllers with weighted outputs depend on the system status, to achieve improved control performances. The effectiveness of the proposed control scheme arc shown by simulation results, which the proposed fuzzy hybrid control method yields good control performance not only in the zero crossing speed region but also in the overall control region including steady-state region.

유압식 인버터 엘리베이터의 속도제어를 위한 하이브리드 슬라이딩모드제어기

한권상,박재삼,안현식,김도현,Han, Gueon-Sang,Park, Jae-Sam,Ahn, Hyun-Sik,Kim, Do-Hyun 대한전자공학회 2001 電子工學會論文誌-SC (System and control) Vol.38 No.6

인버터를 적용한 유압식 엘리베이터 시스템은, 펌프와 실린더 패킹 및 탑승카의 마찰특성으로 인하여 PID 제어기로는 제어가 되지 않는 데드존이 발생하게 된다. 본 논문에서는 이러한 문제를 해결하기 위하여 슬라이딩모드제어기와 PID 제어기를 혼용하여, 출력혼합기의 출력을 절환시키는 구조를 가진 새로운 하이브리드제어기를 제시하여 제어성능을 향상시킨다. 먼저, 인버터를 적용한 유압식 엘리베이터의 속도제어를 위한 슬라이딩모드제어기 설계방법을 제시하고, 이어서 하이브리드 제어기의 설계방법을 제시한다. 제안된 하이브리드 슬라이딩모드제어기가 극저속 속도영역에서 뿐만 아니라 정상상태를 포함한 전 운전 영역에서 제어 성능이 개선됨을 시뮬레이션 결과를 통하여 보인다. Due to the friction characteristics of pump, cylinder packing and passenger car, in the elevator actuated with hydraulic inverter-fed systems, there exist dead zones, which cannot be controlled by a PID controller. To overcome the drawbacks, in this paper, we propose a new hybrid control scheme, which switches the modes between a sliding mode controller and a PID controller. The proposed hybrid control scheme achieves an improved control performance by using both controllers. We first propose a design method of sliding mode controller for a hydraulic elevator system controlled by inverters, then fellowed by a design method of a hybrid sliding mode control scheme is proposed. The effectiveness of the proposed control scheme are shown by simulation results, which the proposed hybrid control method yields better control performance then the PID controlled scheme, not only in the zero-crossing speed region but also in the overall control region including steady-state region.

태권도장 지도자의 셀프리더십이 직무만족 및 조직몰입에 미치는 영향

한권상(Kwon Sang Han) 한국사회체육학회 2012 한국사회체육학회지 Vol.0 No.48

This study was designed to shed light on the effect of self leadership on job satisfaction and organizational commitment of taekwondo master. To accomplish such research purpose, researcher identified the causal relationship through Structural Equation Model(SEM) after having established relationship models among self leadership, job satisfaction and organizational commitment on precedent research works and hypothetical model. 215 participants were sampled from the referees for the taekwondo center located in Seoul, Gyeonggi, Chungnam and Chungbuk region by using convenient sampling method. The findings were generated by frequency analysis and exploratory factors analysis by SPSS 18.0 version, and the test of goodness of the model was carried out with the covariance structure analysis using AMOS 18.0 version to verify construct validity of the measured model. Following is the results of the path model. First, self leadership of taekwondo master had positive influence on job satisfaction. Second, self leader ship of taekwondo master had positive influence on organizational commitment. Third, job satisfaction of taekwondo master had positive influence on organizational commitment.

유압 인버터 엘리베이터에서의 극저속 속도제어를 위한 퍼지논리 제어기의 설계

한권상(Gueon-Sang Han),김병화(Byoung-Hwa Kim),이우철(Woo-Cheol Lee),장태호(Tae-ho Jang),이건학(Kun-hak Lee),사공석진(Seok-jin Sagong),안현식(Hyun-Sik Ahn),김도현(Do-Hyun Kim) 대한전자공학회 1999 대한전자공학회 학술대회 Vol.1999 No.6

유압식 인버터 제어기의 속도제어를 위한 퍼지기반 하이브리드 슬라이딩모드 제어기 설계

한권상(Gueon-Sang Han),최병욱(Byoung-Wook Choi),안현식(Hyun-Sik Ahn),김도현(Do-Hyun Kim) 제어로봇시스템학회 2003 제어·로봇·시스템학회 논문지 Vol.9 No.3

생활체육 참여노인의 자아존중감이 심리적 행복감 및 생활만족에 미치는 영향

한권상(Kwon Sang Han),김종필(Jong Pil Kim) 한국사회체육학회 2010 한국사회체육학회지 Vol.0 No.41

This research aims to identify the impacts of self-esteem on psychological happiness and life satisfaction targeting the older adults who participate in sport for all. The research subjects were those elderly people who live in Seoul and Gyeonggi region and participate in sport for all, and 478 seniors were sampled using convenience sampling. Data was processed using SPSS 15.0 program, with which the frequency analysis, factor analysis, correlation analysis, and regression analysis were conducted. Based on the above research methods, the following conclusions were drawn. First, the results from survey revealed that self-assertion, and relationships with others, which are the sub factors of self-esteem, had a statically significant impact on a sense of accomplishment, and that self-assertion, instilling self-confidence, and relationships with others, which are sub factors of self-esteem, had a statically significant impact on the satisfaction. Second, the survey results showed that self-assertion and popularity, which are sub factors of self-esteem, had a statistically significant impact on emotional satisfaction, and that self-assertion and relationships with others, which are sub factors of self-esteem, affected social satisfaction, and that self-assertion and relationships with others, which are sub factors of self-esteem, had also a statically significant influence on self-satisfaction. Third, the survey results revealed that the sense of satisfaction, which is a sub factor of psychological happiness, affected emotional satisfaction in a statistically significant manner, and that senses of accomplishment and satisfaction, which are sub factors of psychological happiness, had statistically significant impact on social satisfaction and self-satisfaction as well.

기업의 태권도 스폰서십 활동이 스폰서 이미지, 스폰서 태도 및 소비자 반응에 미치는 영향

한권상(Han, Kwon-Sang) 한국체육과학회 2013 한국체육과학회지 Vol.22 No.6

This study was designed to shed light on the effect of taekwondo sponsorship activity of company on sponsor image, sponsor attitude and consumer responses. To accomplish such research purpose, researcher identified the causal relationship through structural equation model after having established relationship models among sponsorship activity, sponsor image, sponsor attitude and consumer responses based on precedent research audience and hypothetical model. 415 participants were sampled from the taekwondo competition audience by using convenient sampling method. The resulting data were processed by means of frequency analysis, exploratory factor analysis, correlation analysis and regression analysis using SPSS 18.0 program. Results derived from the researches based on the aforementioned methods and data analyses are as follows: First, taekwondo sponsorship activity of company had positive influence on sponsor image. Second, sponsor image had positive influence on sponsor attitude. Third, sponsor image had positive influence on consumer responses. Forth, sponsor attitude had positive influence on consumer responses.

아날로그-디지털 변환기가 포함된 저잡음 특성의 전압/전류/저항 센서용 아날로그 프론트 엔드

한권상(Kwonsang Han),김형섭(Hyungseup Kim),문영진(Yeongjin Mun),이변철(Byeoncheol Lee),김재성(Jaesung Kim),고형호(Hyoungho Ko) 대한전자공학회 2018 대한전자공학회 학술대회 Vol.2018 No.6

24채널의 양도락진단기를 이용한 경락의 우세방향에 따른 자기치료시스템에 관한 연구

김병화,이우철,한권상,사공석진,안현식,김도현,Kim, Byoung-Hwa,Lee, Woo-Cheol,Han, Gueon-Sang,Sagong, Seok-Jin,Ahn, Hyun-Sik,Kim, Do-Hyun 대한전자공학회 2002 電子工學會論文誌 IE (Industry electronics) Vol.39 No.2

본 논문에서는 맥진기로 취득한 맥진 파형을 참고로 하여, 인체에 분포된 12경맥의 좌우 대표측정점의 임피던스를 24채널의 양도락 진단기를 이용해 측정하였다. 그리고, 퍼지 논리에 따라 각 경락의 허실을 진단한 후, 경락의 유주방향(流注方向)에 순(보)하거나 반(사)하는 자기 자극을 가하여 맥파와 경락의 허실정도가 어떻게 변화하는가를 연구하였으며, 궁극적으로는 진단과 동시에 자기 자극을 가하여 음양과 오행의 균형을 이루게 하는 자기치료 시스템에 관해 연구하였다. 자기 자극에서는 좌우 각 12경맥의 수족 대표측정점의 일정 부위에 방향과 시간을 가변할 수 있는 자기 자극기를 개발하여 이용하였다. 치료방법은 양도락 진단을 통하여 허와 실을 구분하고 난 뒤, 심하게 허한 양의 경락은 하향자극 조정을, 심하게 실한 양의 경락은 상향자극 조정을, 심하게 허한 음의 경락은 상향자극 조정을, 심하게 실한 음의 경락은 하향자극 조정을 할 수 있도록 PC에서 제어하도록 하였다. In this paper, with the reference of the pulse wave acquired by the pulse-checking device, it is measured the impedance on the key measuring points of the 12 kyungmaks of the human body's left and right by using 24-channels Yangdorak machine. Then, based on the Fuzzy theory, this study diagnosed the each meridian's strength and weakness. After that, both the strengthening and weakening stimulus of magnetic fields are applied to the dominant direction to find out how the degree of strength and weakness of the meridian changed. Ultimately, the magnetic therapy that can stimulate the magnetic field at the time of diagnosis and thereby balancing the interactive of five-system(O-hang) have been materialized. For the stimulation of magnetic fields, a stimulating device which can change the direction and time on a specific part of the key measuring points of the limbs of 24 kyungmaks have been developed and used. The therapeutic methods are as follows. First, the strength and weakness of the meridian have been determined. Second, both the extremely weak meridian of Yin(Shade) and Yang(Shine), and the extremely strong meridian of Yin and Yang were adjusted by applying appropriate ascending and descending stimuli respectively. All these adjusting processes can now be carried out automatically on a personal computer(PC).?

스폰서십 활동이 기업이미지, 구매행동에 미치는 영향

유영창(Young Chang Yoo),한권상(Kwon Sang Han) 한국사회체육학회 2008 한국사회체육학회지 Vol.0 No.33