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RISS 인기검색어
- 검색키워드
- 저자 : D. DIALLO (검색결과 4 건)
- 무료
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- 유료
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DESIGN METHODOLOGY OF HYBRID ELECTRIC VEHICLE ENERGY SOURCES: APPLICATION TO FUEL CELL VEHICLES
X. LIU,D. DIALLO,C. MARCHAND 한국자동차공학회 2011 International journal of automotive technology Vol.12 No.3
This paper presents a methodology to optimize the sizing of the energy and power components in a fuel cell electric vehicle from the driving mission (which includes driving cycles, a specified acceleration and autonomy requirements). The fuel cell and the Energy Storage System associated (battery or/and ultra capacitor) design parameters are the numbers of series and parallel branches respectively Nsi and Npi. They are set so as to minimize the objective function that includes mass, cost, fulfilling the performance requirements and respect the technological constraints of each power component through a penalty function. The methodology is based on a judicious combination of Matlab-Simulink® for the global simulation and a dedicated software tool Pro@Design®. Both are well suited to treat inverse problems for the optimization. An application for a fuel cell/battery powertrain illustrates the feasibility of the proposed methodology.
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M. E. H. BENBOUZID,D. DIALLO,M. ZERAOULIA,F. ZIDANI 한국자동차공학회 2006 International journal of automotive technology Vol.7 No.6
This paper describes an active fault-tolerant control system for an induction motor drive that propels an Electrical Vehicle (EV) or a Hybrid one (HEV). The proposed system adaptively reorganizes itself in the event of sensor loss or sensor recovery to sustain the best control performance given the complement of remaining sensors. Moreover, the developed system takes into account the controller transition smoothness in terms of speed and torque transients. In this paper which is the sequel of (Diallo et al., 2004), we propose to introduce more advanced and intelligent control techniques to improve the global performance of the fault-tolerant drive for automotive applications (e.g. EVs or HEVs). In fact, two control techniques are chosen to illustrate the consistency of the proposed approach: sliding mode for encoder-based control; and fuzzy logics for sensorless control. Moreover, the system control reorganization is now managed by a fuzzy decision system to improve the transitions smoothness. Simulations tests, in terms of speed and torque responses, have been carried out on a 4㎾ induction motor drive to evaluate the consistency and the performance of the proposed fault-tolerant control approach.
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Benbouzid, M.E.H.,Diallo, D.,Zeraoulia, M.,Zidani, F. The Korean Society of Automotive Engineers 2006 International journal of automotive technology Vol.7 No.6
This paper describes an active fault-tolerant control system for an induction motor drive that propels an Electrical Vehicle(EV) or a Hybrid one(HEV). The proposed system adaptively reorganizes itself in the event of sensor loss or sensor recovery to sustain the best control performance given the complement of remaining sensors. Moreover, the developed system takes into account the controller transition smoothness in terms of speed and torque transients. In this paper which is the sequel of (Diallo et al., 2004), we propose to introduce more advanced and intelligent control techniques to improve the global performance of the fault-tolerant drive for automotive applications(e.g. EVs or HEVs). In fact, two control techniques are chosen to illustrate the consistency of the proposed approach: sliding mode for encoder-based control; and fuzzy logics for sensorless control. Moreover, the system control reorganization is now managed by a fuzzy decision system to improve the transitions smoothness. Simulations tests, in terms of speed and torque responses, have been carried out on a 4-kW induction motor drive to evaluate the consistency and the performance of the proposed fault-tolerant control approach.
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Cho, M.,Lee, S.H.,Lee, D.,Chen, D.P.,Kim, I.C.,Diallo, M.S. Elsevier Scientific Pub. Co 2016 Journal of membrane science Vol.511 No.-
Forward osmosis (FO) is a promising membrane process with the potential to offer more efficient separation technologies for various environmental and industrial applications including (i) water reuse, (ii) desalination, and (iii) resource recovery. However, a major and unresolved challenge in FO remains the availability of efficient draw solutions that could be (i) implemented using porous and high flux FO membranes and (ii) reconstituted using a low-energy separation process. This study investigates the potential use of a branched polyethyleneimine (PEI) macromolecule (M<SUB>w</SUB> of 25,000Da) as osmotic agent to formulate new draw solutions that could be deployed using porous FO membranes with nanofiltration (NF) selective layers. To asses the potential of PEI-based draw solutions, we combine (i) osmotic pressure measurements, (ii) membrane preparation and characterization, (iii) water flux and reverse solute permeation measurements and (iv) draw solution concentration experiments using NF. The overall results of this study suggest that branched PEI macromolecules (M<SUB>w</SUB> of 25,000Da) are promising building blocks for the development of draw solutions for osmotically-driven membrane processes using a nanofibrous composite (NFC) polyacrylonitrile (PAN) membrane with an NF selective layer and no polyethylene terephthalate (PET) microporous support.
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