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김광섭(Kwang-Seob Kim),방상석(Sang-Suk Bang),권병기(Byung-Ki Kwon),문상호(Sang-Ho Moon),양병훈(Byung-Hun Yang),이명준(Myung-Jun Lee),최창호(Chang-Ho Choi) 전력전자학회 2006 전력전자학술대회 논문집 Vol.- No.-
We introduce 2[MVA] 3300[V] 7-level voltage source inverter system developed by POSCON and describe the main characteristics of inverter system, i.e. PWM converter, H-bridge power module, phase shifted carrier PWM. The P주 converter is a three-phase boost converter, which operates in a 4-quadrant and in a nearly unit displacement power factor. Experimental waveforms are also presented to verify the proposed method and performance of the developed system.
그린카용 ISG 모터 및 인버터의 냉각 성능에 관한 해석 연구
김대건(Dae Geon Kim),신윤혁(Yoon Hyuk Shin),임동현(Dong Hyun Lim),김성철(Sung Chul Kim),방상석(Sang Suk Bang) 한국자동차공학회 2012 한국자동차공학회 부문종합 학술대회 Vol.2012 No.5
Recently, many vehicles have applied electric parts for saving fuel consumption and reducing levels of environmental pollution. Electrification of automobiles is indispensable for entering into global market because of enhanced restriction. ISG (Integrated Starter & Generator) is one of main electric parts and can improve fuel efficiency more than other components by Idle Stop & Go function and regenerative braking system. If ISG motor and inverter work under the continuously high load condition, it will make them the decrease of performance and durability. So the ISG motor and inverter need to properly design the cooling structure. In this study, we suggested the enhancement points of the heat dissipation structure by modifying ISG motor and inverter design and then confirmed the improvement of cooling performance.