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      Optimised design consideration of suspension choppers in Maglev train using SiC MOSFET modules

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      The Journal of Engineering

      The Institution of Engineering and Technology

      The 9th International Conference on Power Electronics, Machines and Drives (PEMD 2018) (PEMD 2018)

      17–19 April 2018

      closed loop systems, suspensions (mechanical components), feedback, choppers (circuits), silicon compounds, electromagnets, MOSFET, magnetic levitation, snubbers, optimisation, closed-loop feedback controller, levitation current, desired magnetic force, considerable electricity, Maglev train, levitation power consumption, weight optimisation, suspension control box, EMS Maglev, typical suspension chopper, suspension chopper optimisation, optimised heatsink design, SiC MOSFET suspension chopper prototype, suspension control systems, optimised design consideration, electromagnetic suspension Maglev trains, green type, track transportation, SiC MOSFET modules, SiC

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          Abstract

          Electromagnetic suspension (EMS) Maglev trains attracted to suspend above a track is a green type of track transportation. The suspension control box adopting a closed-loop feedback controller outputs a levitation current that flows into the electromagnets producing a desired magnetic force to levitate the train. Without contact frictions, such a promising type of transportation saves considerable electricity for propulsion. Minimising the volume and weight of Maglev trains attracts great research interests and continuous engineering effort as that is closely correlated with levitation power consumption and, more importantly, the construction cost. This paper mainly discusses volume and weight optimisation of suspension control box that contains a suspension chopper in EMS Maglev trains using the state-of-the-art SiC MOSFET modules. By analysing the mission profile of a typical suspension chopper, SiC MOSFET is found to be perfectly suitable for suspension chopper optimisation because of its low power losses. An optimised heatsink design of suspension chopper is given, whose volume is only 21% of the previous design. By utilising a RC snubber, the new SiC MOSFET suspension chopper prototype is built without showing serious voltage ringing. This provides a promising prospect for further optimisation of suspension control systems.

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          Most cited references 7

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          Review of maglev train technologies

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            An Experimental Investigation of the Tradeoff between Switching Losses and EMI Generation With Hard-Switched All-Si, Si-SiC, and All-SiC Device Combinations

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              Modeling and Analysis of SiC MOSFET Switching Oscillations

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                Author and article information

                Contributors
                Conference
                JOE
                The Journal of Engineering
                J. Eng.
                The Institution of Engineering and Technology
                2051-3305
                22 January 2019
                21 May 2019
                June 2019
                : 2019
                : 17
                : 4050-4054
                Affiliations
                Maglev Research Centre, National University of Defense Technology , Changsha, Hunan, 410073, People's Republic of China
                Article
                JOE.2018.8086 JOE.2018.8086
                10.1049/joe.2018.8086

                This is an open access article published by the IET under the Creative Commons Attribution License ( http://creativecommons.org/licenses/by/3.0/)

                The 9th International Conference on Power Electronics, Machines and Drives (PEMD 2018)
                PEMD 2018
                9
                Liverpool, UK
                17–19 April 2018
                Page count
                Pages: 0
                Product
                Categories
                ee-cer
                cn-pmd-2018
                The 9th International Conference on Power Electronics, Machines and Drives (PEMD 2018)

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