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이기택(Ki Taeg Lee),안강순(Kang Soon Ahn),강건일(Geon Il Kang),김근영(Guen Yeong Kim) 한국자동차공학회 2012 한국자동차공학회 학술대회 및 전시회 Vol.2012 No.11
Existing automotive refrigerator system is operating the compressor in conjunction with the engine which responsible for the driving of the vehicle power or conducting the ON/OFF control of the compressor used by generator power linked engine. Thus, compressor control is not easy to maintain sustained low temperature or temperature control, and take a disadvantage of low efficiency. In order to improve, compressor is operated by motor that apply the invertor for adequately control reflecting the instantaneous requirement, so maintaining a constant temperature, and energy efficiency can be improved. In this parer, we proposed to compressor invertor for commercial refrigerator vehicle. The proposed inverter is consist of the initial charging unit, rectifier unit, DClink unit, and IGBT module. Also, proposed inverter is including the heating mode for temperature control. Then, current control of cooling mode and heating mode was carried out.
새로운 병렬통신 알고리즘 및 부하분담 기능을 갖는 전자부하기
주홍주(Hong-Ju Ju),이상혁(Sang-Hyuk Lee),김승룡(Seung-Ryong Kim),안강순(Kang-Soon Ahn),박성준(Sung-Jun Park) 전력전자학회 2010 전력전자학술대회 논문집 Vol.2010 No.7
최근 전원장치의 대용량화가 요구되면서 하나의 전원에서 모든 전력을 부담하는 것보다 여러 대의 전원을 병렬 운전하여 신뢰성을 높이고 용량을 증대시키는 방안이 연구되고 있다. 본 논문에서는 병렬 연결된 전원장치에 부하전류 분배를 하는데 있어 디지털 방식을 사용하여 고속 통신을 통한 제어를 이루어 시스템 비용을 낮추고 높은 수준의 제어 로직을 구성하여 부하 변동시 안정된 부하분담이 이루어지는 모듈화 된 일정 용량의 전원 장치를 제안하고 시뮬레이션을 통하여 검증하였다.
신용희(Yong-Hee Shin),오용승(Yong-Seung Oh),안강순(Kang-Soon Ahn),김창선(Chang-Sun Kim) 전력전자학회 2009 전력전자학술대회 논문집 Vol.2009 No.1
We considered about a mid range wireless power transfer for breaking inconvenience of using power wire. One of the way how to supply electric power through wireless system in short distance is using the Electromagnetic coupled resonances phenomenon. Through this way, it can be supplied the electric power to the load. It is analyzed the transfer characteristics through the basic experiment with LED load. As a result, we could confirm that the power is received from a secondary coil located at 2m position from asource coil. The transfer power measured is about 0.04W(0.5%) of the transmitted 8W power. The converter is operated at 1.5MHz switching frequency.