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수산물 보관 창고용 냉동 압축기의 전력부하 예측 AI알고리즘 개발
유일준(Yoo IL-Jun),차인수(Cha In-Su),강유식(Kang Yoo-Sik) 한국태양에너지학회 2021 한국태양에너지학회 논문집 Vol.41 No.3
In this study, we use the monitoring information of the 214.5RT ammonia screw refrigeration system to show that it is possible to analyze operation patterns based power load usage, predict power usage, and save energy. We further propose an algorithm to this end. Accidents occur frequently, such as the leaking of ammonia in a recently dilapidated freezer warehouse, and management is an important point of focus because most of the power load in freezer warehouses is drawn by refrigerators. It is important to save energy and predict accidents by using the temperature information of the Meteorological Agency and taking into consideration the pressure and temperature of the refrigerator. In particular, the pressure of the refrigerator changes rapidly according to seasonal changes, and this information could be used to reduce accidents. In addition, as interest in energy saving is increasing worldwide and the reduction of carbon dioxide emissions comes into focus, research on energy saving is being conducted in various fields. In this paper, a prediction algorithm is implemented by analyzing data from the past two years among the monitoring information of a large-scale animal center refrigeration system in Incheon area using deep learning, a type of AI algorithm that has recently attracted attention, as a prediction technique. Among the deep-learning models, an algorithm is designed using RNN (Recurrent Neural Network) and LSTM (Long Short-Term Memory). The RNN and LSTM models have strengths in continuous data pattern analysis. Through this model, data are predicted and performance evaluations are conducted by comparing the power load of refrigerators that have been actually consumed recently, considering the current limiting situation and the direction to move forward.
솔라셀을 이용한 그린하우스용 도난 경보 및 자동 온도 유지 관리 시스템
이정일(Jung-Il lee),윤석암(Suk-Am Yoon),윤형상(Hyung-Sang Yoon),최장균(Jang-Gyun Choi),정학수(Hak-Su Jung),윤용선(Yong-Sun Yoon),차인수(In-Su Cha) 전력전자학회 1999 전력전자학술대회 논문집 Vol.- No.-
In this paper, we transformed photovoltaic energy to electric energy using solar cells for drive power source and charged 1t with batteries. This system was programmed in a one-chip microprocessor PIC. This system can be available for the greenhouses set at countrysides and suburbs because it keeps the temperature ins1de constant and can also be used as a protection against burglars at the harvesting season. This alarm system detects the intrusion or the variation of rap1d temperature inside of the greenhouse and warns an alarm and turn on and off the siren
차인수(In Su Cha),김태형(Taehyung Kim),이기봉(Ki Bong Lee) 전력전자학회 2010 전력전자학술대회 논문집 Vol.2010 No.7
This paper represents about the characteristics of wind turbine industry of the west-south seashore of Leading Industry Development for Honam Economic Region. These projects have 8 R&D and 3 non R&D project. The period of these projects is from October 2009 to April 2012. The R&D projects are composed three bright prospect products (1) the base construction of ㎿ off-shore wind turbine components and system with Outer-rotor type PMSG, (2) the Development of 3㎿ wind power system with accommodation of the west-south seashore, and (3) the development of hybrid wind turbine system with wind base construction. Also, the non-R&D projects are composed three parts with above three bright prospect products. Above two projects support the companies with characteristic of low speed wind turbine system. Other project supports the companies related to wind turbine with small and medium capacity of form 3 ㎾ to 10㎾.
차인수(In Su Cha),김동묵(Dong Mook Kim) 전력전자학회 2011 전력전자학술대회 논문집 Vol.2011 No.7
This paper has represented about the activated scheme the Honam regional wind power industry favorable products. The favorable products are the ㎿ offshore wind system with Outer-rotor type PMSG-6 products, the 3㎿ offshore wind system with adatation type of west-south sea, and the hybrid generator system with wind turbine technology basis-2 products.
최장균(Jang Gyun Choi),윤석암(Suk Am Yoon),강병복(Byeong Bog Gang),이정일(Zeng.Ri Lee),조경재(Kyeng Jai Cho),차인수(In Su Cha) 전력전자학회 2002 전력전자학술대회 논문집 Vol.- No.-
In electrical machinery and apparatus, the most important problem is protect of machinery and apparatus m due to transient phenomena and overload on operation.<br/> Particularly by advanced technology of late, there is demand for low cost of equipments and hi percentage of use of equipments.<br/> Therefore, protection of machinery and apparatus in condition of overload is more valued considering that all efficiency increase is passed by operating all machinery and apparatus in condition of heavyload In tills paper, the suggested system is added overload interrupt system using CT m condition of overload.
차인수(Cha In Su),김태형(Kim Taehyung),박경석(Park Kyung Seok) 대한전기학회 2010 대한전기학회 학술대회 논문집 Vol.2010 No.7
This paper represents about The Direction Short-Mid Term Road Map of Wind Power Industry of the West-South Seashore with Leading Industry Development for Honam Economic Region. These projects have 8 R&D and 3 non R&D project. The period of these projects are from October 2009 to April 2012. The projects of R&D are composed three bright prospect products-1.The base construction of ㎿ offshore wind power components and system with Outer -rotor type PMSG, 2.The Development of 3㎿ wind power system with accommodation of the west-south seashore,3.The development of hybrid wind power system with wind base construction. The projects of non-R&D are composed three parts with above three bright prospect products.
덕트의 설계 조건에 따른 오디오 음향환경 개선에 관한 연구
김양수(Yang-Soo Kim),김대근(Dae-Geon Kim),문종대(Jong-Dae Moon),최정식(Jang-Sik choi),차인수(Cha In Su) 전력전자학회 2000 전력전자학술대회 논문집 Vol.2000 No.11
In this paper, we conducted research about the speaker's acoustic characteristics by the condition of the duct. It is expanding the bass ton play frequency as interfere two frequencies each other which originate from the speaker's back and front side using duct, as attach the duct of round shape or, square at the encloser. This is not making of bass ton range using interference. the structure of the duct which using this experiment is round shape. And we confirmed that can expand the limit of bass ton playas compare the actual experimental wave that after simulation of play frequency range as length change
도난 경계 경보기용 비상등 컨트롤러의 설계및 알고리즘에 관한 연구
윤석암(Suk-Am Yoon),박종복(Chong-Bock Park),윤형상(Hyung-Sang Yoon),최장균(Jang-Gyun Choi),차인수(In-Su Cha),김원배(Won-Bae Kim),조명현(Myung-Hyun Cho) 전력전자학회 1998 전력전자학술대회 논문집 Vol.- No.-
In this paper we present the method that improve alarm security system using the electronic circuits added the emergency lamp by our proposed Algorithms. In conventional method the emergency lamp of warning & alarm system was not executed perfectly its performance because of battery with short life. For improving this problem we, using Peripheral Interface Controller IC, designed the circuit added the emergency lamp for an warning & alarm system and for prevent from stopping the electric current, and compared our proposed method with conventional method. <br/> By designing the circuit to stop up over charge we can extend life of battery, use for a stoppage of electric current in emergency and according to the lightness around. Therefore we are very convenient and profitable m our life.<br/> In the future we will study the method to lower the cost of architecture for practical utilization.<br/> <br/>