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전기자동차 시스템 모델링 및 주행 환경에 따른 배터리 응답 특성 연구
추용주,박준영,박광민,이승엽,Chu, Yong-Ju,Park, Jun-Young,Park, Gwang-Min,Lee, Seung-Yop 대한임베디드공학회 2022 대한임베디드공학회논문지 Vol.17 No.2
Currently, various researches on electric vehicle battery systems have been conducted from the viewpoint of safety and performance for SoC, SoH, etc. However, it is difficult to build a precise electrical model of a battery system based on the chemical reaction and SoC prediction. Experimental measurements and predictions of the battery SoC were usually performed using dynamometers. In this paper, we construct a simulation model of an electric vehicle system using Matlab Simulink, and confirm the response characteristics based on the vehicle test driving profiles. In addition, we show that it is possible to derive the correlation between the SoC, voltage, and current of the battery according to the driving time of the electric vehicle in conjunction with the BMS model.
임펠러와 다중 격벽 구조를 이용한 미세조류용 광생물반응기 개발
추용주(Yong Ju Chu),이상효(SangHyo Lee),김견우(Kyunwoo Kim),이동준(DongJun Lee),이승엽(SeungYop Lee) 대한기계학회 2012 대한기계학회 춘추학술대회 Vol.2012 No.11
Recently, microalgae are considered as one of the most practical energy sources for biofuel, instead of fossil fuel. For the production of microalgae biomass, various closed types of photobioreactors have been developed to solve the problems such as mass transfer, contamination, light distribution and carbon dioxide supply. In this study, a cylindrical type, internally radiating photobioreactor is proposed. This bioreactor has a multi-layered wall including light emitting diodes to maximize the surface to volume ratio for cultivation of microalgae. Furthermore, a spiral-type impeller of the bioreactor is designed to have the optimal values of internal flow velocity and carbon dioxide distribution, using CFD simulations.