Topic
Propulsion
About: Propulsion is a research topic. Over the lifetime, 24977 publications have been published within this topic receiving 200311 citations.
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TL;DR: In this article, a three-phase onboard charger, integrated with the propulsion system of a plug-in electric vehicle, is constructed by connecting an add-on 3-phase power electronics interface to propulsion system.
Abstract: A three-phase onboard charger, integrated with the propulsion system of a plug-in electric vehicle, is presented. It is constructed by connecting an add-on three-phase power electronics interface to the propulsion system. The propulsion motor is utilized as a coupled DC inductor for the charger. The charging power level of the proposed charger could be as high as that of the propulsion system. The charger topology is capable of three-phase power factor (PF) correction and battery voltage/current regulation. Detailed analyses of the circuit operation and modeling of the circuit are presented. Experimental results of a 3.3-kW three-phase integrated charger, using a permanent magnet synchronous machine (PMSM), are provided. A nearly unity PF and 4.77% total harmonic distortion are obtained with a maximum efficiency of 92.6%.
107 citations
TL;DR: It is contended that the field of aircraft noise prediction has not yet reached a sufficient level of maturity, in particular, some parametric effects cannot be investigated, issues of accuracy are not currently addressed, and validation standards are still lacking.
107 citations
TL;DR: In this paper, the authors illustrate worldwide activities in this field, taking the various fuel cell system requirements for operation on-board merchant ships, naval surface ships and submarines into consideration.
107 citations
Journal Article•
TL;DR: In this article, the concept of spacecraft propulsion using Lorentz force is investigated for LEO formation flying, and a triangular spacecraft formation configuration is used to simulate and validate the advantages and disadvantages of the proposed concept.
Abstract: The Lorentz Augmented Orbit (LAO) concept is an electromagnetic propulsion system without a tether that uses the interaction between an electrostatically charged spacecraft and the Earth's magnetic field to provide a useful thrust. In Low Earth Orbit (LEO), the Lorentz force acting on a charged spacecraft flying relative to Earth's magnetic field causes acceleration in a direction perpendicular to both its velocity and the magnetic field. In this paper, the concept of spacecraft propulsion using Lorentz force is investigated for LEO formation flying. A triangular spacecraft formation configuration is used to simulate and validate the advantages and disadvantages of the proposed concept. It is illustrated that simple formation manoeuvres can be performed solely using the Lorentz force.
107 citations
107 citations