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유도전동기의 최대토크 제어를 위한 AIPI 제어기 개발
강성준(Sung-Jun Kang),고재섭(Jae-Sub Ko),최정식(Jung-Sik Choi),정철호(Cheol-Ho Jung),백정우(Jeong-Woo Baek),장미금(Mi-Geum Jang),정동화(Dong-Hwa Chung) 대한전기학회 2010 대한전기학회 학술대회 논문집 Vol.2010 No.4
The maximum output torque developed by the machine is dependent on the allowable current rating and maximum voltage that the inverter can supply to the machine. Therefore, to use the inverter capacity fully, it is desirable to use the control scheme considering the voltage and current limit condition, which can yield the maximum torque per ampere over the entire speed range. This controller is controlled speed using artificial intelligent PI(AIPI) controller. Also, this paper is proposed control of maximum torque per ampere(MTPA) of induction motor. The performance of the proposed induction motor drive with maximum torque control using AIPI controller is verified by analysis results at dynamic operation conditions.
유도전동기의 고성능 속도제어를 위한 하이브리드 FNN 제어기 개발
강성준(Sung-Jun Kang),고재섭(Jae-Sub Ko),최정식(Jung-Sik Choi),정철호(Chul-Ho Jung),백정우(Jung-Woo Baek),장미금(Mi-Geum Jang),정동화(Dong-Hwa Chung) 대한전기학회 2010 대한전기학회 학술대회 논문집 Vol.2010 No.7
The indirect field-oriented method of induction motor drive is generally implemented by the fixed gain PI controller because of its simple design technique. The performance of fixed gain PI controller may be well under some operating conditions, but not all desired operating conditions. This paper is proposed self tuning and adaption learning controller for high performance and robust control of induction motor drive. The hybrid combination of fuzzy control and neural network will produce a powerful representation flexibility and numerical processing capability. This paper is proposed high performance control of induction motor drive using hybrid fuzzy neural network(HFNN). The performance of proposed controller was demonstrated through response results. The results confirm that the proposed controller is high performance and robust under the variation of load torque and parameters.
금형코어 정밀가공을 위한 이터븀 다이오드 레이저 조각기 개발
강성준(Sung-Jun Kang) 한국산학기술학회 2014 한국산학기술학회 학술대회 Vol.- No.-
본 논문에서는 비전인식을 통한 자동 인식 기술과 오토 스테이지 제어를 통해 인스톨 시간을 줄이고 조각위치의 정확성을 높일 수 있으며, 조각결과를 실시간으로 확인을 통해 조각품질을 확보할 수 있으 며, 이터븀 다이오드 레이저를 이용하여 금형코어 조각 시 정밀 조각이 가능한 제품개발이다.
Lysobacter antibioticus HS124를 이용한 배추좀나방(Plutella xylostella L.)의 생물학적 방제
강성준(Seong-Jun Kang),이용성(Yong-Sung Lee),이소연(So-Youn Lee),윤근영(Gun-Young Yun),홍성현(Sung-Hyun Hong),박윤석(Yun-Suk Park),김익수(Ik-Soo Kim),박노동(Ro-Dong Park),김길용(Kil-Yong Kim) 한국토양비료학회 2010 한국토양비료학회지 Vol.43 No.5
선행연구에서 근권 토양으로부터 분리된 Lysobacter antibioticus HS124 (HS124)는 lytic enzyme으로써 chitinase, gelatinase, lipase 및 protease 등의 효소와 항생물질인 4-hydroxyphenylacetic acid (4-HPAA)를 생성하였다. 본 실험에서는 HS124를 이용하여 배추좀나방 (diamondback moth, Plutella xylostella L.)3~4령 유충의 살충활성을 검정하였다. HS124 배양액을 배추좀나방 유충에 처리하였을 때 유충은 파괴되어 분해되었다. HS124가 생성하는 4-HPAA를 유충에 처리하였을 때 처리 농도가 높을수록 살충율은 증가하였으며, HS124 배양액에 Tween 80을 첨가하였을 때 첨가하지 않은 처리구보다 살충율이 1.4배 높았다. 한편 화학 살충제 (IS), HS124 배양액 (HS124), 식물추출물 (매직파이; MP), HS124 배양액+식물추출물 (HS124+MP) 및 멸균수 (SDW)를 이용하여 배추좀나방 유충의 살충율을 검정하였다. HS124+MP 처리구에서 가장 높은 살충율을 나타내었고, IS, MP, HS124 및 SDW 처리구 순으로 살충율이 감소하였다. HS124 처리구는 대조구인 멸균수 처리구보다 31% 높은 살충율을 나타내었고, HS124+MP 처리구 보다 40% 낮은 살충율을 나타내었다. 이러한 결과로 보아 항생물질과 다양한 lytic enzyme을 생성하는 L. antibioticus HS124 배양액과 식물추출물의 혼합제제는 배추좀나방의 생물학적 방제제로써 가치가 있다고 사료된다. Lysobacter antibioticus HS124 was isolated from rhizosphere soil in previous experiments, which produced lytic enzymes such as chitinase, gelatinase, lipase and protease. In addition, HS124 released an antibiotic compound, 4-hydroxyphenylacetic acid (4-HPAA). When larvae of P. xylostella was treated with HS124 culture broth, its body was destroyed, and degraded with the increase of incubation time, yielding glycine which was detected from HS124 culture broth. When 4-HPAA produced from HS124 was sprayed, larvae mortality increased with increasing concentration of 4-HPAA. When HS124 culture supplemented with Tween 80 was sprayed, its insecticidal activity against larvae was approximately 1.4 times higher compared to the culture without Tween 80. Insecticide (IS), HS124 culture broth (HS124), Magic-pi (MP) and HS124 culture broth+Magic-pi (HS124+MP) were each treated against larvae of P. xylostella to investigate their insecticidal effect where sterile diluted water (SDW) was used as a control. The highest mortality of larvae was found in HS124+MP, followed by IS, MP, HS124 and SDW respectively. Mortality of larvae in HS124 was 31% higher than that in SDW, but 41% lower than that in HS124+MP, meaning that both enzymes and antibiotics produced from HS124 may synergistically act as active agents with plant extract containing neem oil and turmeric in HS124+MP treatment. These results suggested that L. antibioticus HS124 together with plant extract can be one of candidates for biocontrol agents against Plutella xylostella.
BIPV의 효율성 향상을 위한 태양광 · 열 복합 시스템 개발
강성준(Sung-Jun Kang),고재섭(Jae-Sub Ko),최정식(Jung-Sik Choi),백정우(Jeong-Woo Baek),장미금(Mi-Geum Jang),문주희(Ju-Hui Mun),정동화(Dong-Hwa Chung) 한국조명·전기설비학회 2010 한국조명·전기설비학회 학술대회논문집 Vol.2010 No.5월
This paper proposes photovoltaic thermal hybrid module to get the electrical and Thermal performance of building integrated photovoltaic(BIPV) system. BIPV system is decreased the system efficiency because output of PV is decreased by the thermal rising on generating. In order to improve the efficiency of BIPV module, water cooling system is applied and generated thermal is used the warm water system. Water cooling system uses the flux control algorithm considering water temperature and power loss. Electrical and thermal performance of proposed photovoltaic thermal hybrid module is confirmed through the actual experiment and herby proved the valid of this paper.
적응적 배경영상을 이용한 교차로 내 정지 객체 검출 방법
강성준(Kang, Sung-Jun),서암석(Sur, Am-Seog),정성환(Jeong, Sung-Hwan) 한국산학기술학회 2013 한국산학기술학회논문지 Vol.14 No.5
본 논문에서는 교차로 내에 위험의 원인이 되는 정지 객체를 검지하는 방법을 제안한다. 교차로 내에 설치 된 CCTV에서 실시간 영상을 입력받아 객체의 크기를 일정하게 하기 위하여 역원근변환을 수행하였다. 원근변환된 영상에서 검지영역을 설정하고 객체의 이동 정보를 이용한 적응적인 배경영상을 생성하였다. 정지한 객체의 검출은 배경영상 차이법을 사용하여 정지한 객체의 후보 영역을 검출하였다. 검출된 후보 영역의 진위 여부를 파악하기 위하 여 영상의 기울기 정보와 EHD(Edge Histogram Descriptor)를 이용하는 방법을 제안한다. 제안한 알고리즘의 성능을 알아보기 위하여 교차로에 설치된 DVR을 통해 출퇴근 시간 및 주간 대의 영상을 저장하여 실험하였다. 실험 결과 교차로 내의 검지영역 내에 정지한 차량을 효율적으로 감지할 수 있었으며 검지영역의 면적에 따라 초당 13~18프레임의 처리속도를 나타내어 실시간 처리에 문제가 없을 것으로 판단된다. This study suggests a method of detecting the still object, which becomes a cause of danger within the crossroad. The Inverse Perspective Transform was performed in order to make the object size consistent by being inputted the real-time image from CCTV that is installed within the crossroad. It established the detection area in the image with the perspective transform and generated the adaptative background image with the use of the moving information on object. The detection of the stop object was detected the candidate region of the stop object by using the background-image differential method. To grasp the appearance of truth on the detected candidate region, a method is proposed that uses the gradient information on image and EHD(Edge Histogram Descriptor). To examine performance of the suggested algorithm, it experimented by storing the images in the commuting time and the daytime through DVR, which is installed on the cross street. As a result of experiment, it could efficiently detect the stop vehicle within the detection region inside the crossroad. The processing speed is shown in 13~18 frame per second according to the area of the detection region, thereby being judged to likely have no problem about the real-time processing.
HPIFN 제어기를 이용한 SynRM 드라이브의 최대토크 제어
강성준(Sung Jun Kang),고재섭(Jae-Sub Ko),최정식(Jung-Sik Choi),백정우(Jung-Woo Baek),장미금(Mi Geum Jang),문주희(Ju-Hui Mun),정철호(Chul-Ho Jung),정동화(Dong-Hwa Chung) 한국조명·전기설비학회 2010 한국조명·전기설비학회 학술대회논문집 Vol.2010 No.9월
This paper proposes maximum torque control of SynRM drive using hybrid PI fuzzy neural network(HPIFN)controller. The control method is applicable over the entire speed range and considered the limits of the inverter's current and voltage rated value. For each control mode, a condition that determines the optimal axis current for maximum torque operation is derived. The proposed control algorithm is applied to SynRM drive system controlled HPIFN controller and the operating characteristics controlled by maximum torque control are examined in detail.
강성준(Sung-Jun Kang),고재섭(Jae-Sub Ko),최정식(Jung-Sik Choi),백정우(Jeong-woo Baek),장미금(Mi-Geum Jang),김순영(Sun-Young Kim),정동화(Dong-Hwa Chung) 대한전기학회 2009 대한전기학회 학술대회 논문집 Vol.2009 No.10
This controller is controlled speed and current using hybrid fuzzy controller(HFC) and estimation of speed using ANN. Also, this paper is proposed control of maximum torque per ampere(MTPA) of induction motor. This strategy is proposed which is simple in structure and has the honest goal of minimizing the stator current magnitude for given load torque. The performance of the proposed induction motor drive with maximum torque control using HFC controller is verified by analysis results at dynamic operation conditions.
유도전동기의 최대토크 제어를 위한 인공지능 PI 제어기 개발
강성준(Sung-Jun Kang),고재섭(Jae-sub Ko),최정식(Jung-Sik Choi),백정우(Jung-Woo Baek),장미금(Mi-Geum Jang),문주희(Ju-Hui Moon),정동화(Dong-Hwa Chung) 전력전자학회 2010 전력전자학술대회 논문집 Vol.2010 No.7
The maximum output torque developed by the machine is dependent on the allowable current rating and maximum voltage that the inverter can supply to the machine. Therefore, to use the inverter capacity fully, it is desirable to use the control scheme considering the voltage and current limit condition, which can yield the maximum torque per ampere over the entire speed range. This controller is controlled speed using artificial intelligent PI(AIPI) controller. Also, this paper is proposed control of maximum torque per ampere(MTPA) of induction motor. The performance of the proposed induction motor drive with maximum torque control using AIPI controller is verified by analysis results at dynamic operation conditions.
강성준(Kang, Sung-Jun),박영기(Park, Young-Gi) 한국산학기술학회 2010 한국산학기술학회논문지 Vol.11 No.9
본 연구에서는 2차원 천수방정식을 풀이 하는데 Backhaus가 제안한 반음해법의 유한차분법을 도입하였다. 이 기법을 사용하여 금강하구 해역의 조위와 유속을 구하는 수치모형을 구성하였다. 본 모형에 의한 수치해를 검증 하기 위하여 양해법의 모형으로 잘 알려진 Heaps모형의 결과와 비교하였다. 두 모형의 수치해는 거의 일치하였다. 반음해법에서 선택한 계산시간간격은 엄격한 CFL 조건에 의존하는 양해법보다 6배를 증가 시킬 수 있었다. 총 계산 시간은 50%정도 감소하였다. 이와 같은 사실은 본 수치해법이 금강하구 해역에 널리 분포되어 있는 간사지의 처리 가 원활하였으며 장기간 동안의 계산에서도 안정적인 수치해석이 가능하였다. The semi-implicit scheme proposed by Backhaus is introduced to solve two-dimensional shallow water equation. This mothod is applied for the numerical model solving surface elevation and velocity field of Geum River estuary. For the verification of the method, numerical solutions by this model are compared with ones by Heap's well known explicit model. Solutions of two models resemble each other. The time-step chosen for the semi-implicit scheme turned out to be 3 to 6 times longer than explicit model depending on the stringent CFL criterion. The computation time could be reduced at least 50%. It was proved that this scheme is easy to handle dry banks which can be seen in Geum River estuary and numerical stability is obtained for long time computation.