Results 111 to 120 of about 192 (147)
Electromagnetic Loss Analysis of a Linear Motor System Designed for a Free-Piston Engine Generator [PDF]
Electronics (Switzerland), 2020 A free-piston engine generator is a new type of power generating device, which has the advantages of high efficiency and simple structure. In this paper, a linear motor system composed of a moving-coil linear motor with axial magnetized magnets and a H-bridge pulse-width modulation (PWM) rectifier is designed for portable free-piston engine generators.
Yunqin Hu, Zhaoping Xu, Liang Liu
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Design of linear synchronous generator suitable for free-piston engine linear generator system
2017 11th International Symposium on Linear Drives for Industry Applications (LDIA), 2017A free-piston engine linear generator (FPEG) system generates electricity using a linear generator when a free piston reciprocates the combustion thrust of the internal combustion. This system is expected to be applied to hybrid vehicles. In this paper, we propose a configuration for an FPEG, and we evaluate its static thrust and magnetic flux density ...
Y. Yamanaka +5 more
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Linear Generator Design for a Free-Piston Engine with high Force Density
2019 12th International Symposium on Linear Drives for Industry Applications (LDIA), 2019This paper presents a detailed analysis of electrical linear machine concepts, suitable for energy conversion via a free-piston engine. Based on a simulation of the piston dynamics and a thermal evaluation, the boundary conditions are determined. Different machine concepts regarding the geometry (tubular or planar with emphasis on force density are ...
Henning Schillingmann +2 more
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Linear permanent magnet Electric Generator for Free Piston Engine applications
2012 XXth International Conference on Electrical Machines, 2012As a response to the major climatic changes due to global warming and the foreseen oil shortages once the natural reserves will perish, most vehicle manufacturers began research programs on alternative fuel vehicles. The Hybrid Electric Vehicles, as an intermediate step to full electric vehicles, can incorporate Free Piston Engine — Linear Electric ...
C. A. Oprea, L. Szabo, C. S. Martis
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A moving-coil linear generator with dual axial-magnetized stator for free-piston engines
International Journal of Applied Electromagnetics and Mechanics, 2021Free-piston engine coupled with linear generator is a new type of thermoelectric energy converter, which has the advantages of high efficiency and simple structure. In this paper, a novel moving-coil linear generator with dual axial-magnetized stator is proposed for this kind of short-stroke high frequency oscillation generating applications.
Xu, Zhaoping +3 more
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2017 11th International Symposium on Linear Drives for Industry Applications (LDIA), 2017
A free-piston engine linear generator system is investigated for use as a high-efficiency generator engine. The system's efficiency depends on its generation and thermal efficiency, and the generation efficiency is degraded at the edge of the expansion stroke when the piston speed is low and the thrust is high.
M. Sato +5 more
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A free-piston engine linear generator system is investigated for use as a high-efficiency generator engine. The system's efficiency depends on its generation and thermal efficiency, and the generation efficiency is degraded at the edge of the expansion stroke when the piston speed is low and the thrust is high.
M. Sato +5 more
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A Tubular PM Linear Generator With a Coreless Moving-Coil for Free-Piston Engines
IEEE Transactions on Energy Conversion, 2019Free-piston engine coupled with linear generator is a new kind of thermoelectric energy converter. It has been highly concerned due to its high efficiency and low emission in recent years. In this paper, a tubular moving-coil linear generator is developed for the application of free-piston engines. The two-dimensional finite-element model of the linear
Lijie Yang +4 more
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Examination of a Free-piston Engine Linear Generator System with Opposite-side Combustion
2019 12th International Symposium on Linear Drives for Industry Applications (LDIA), 2019A Free-Piston Engine Linear Generator System is expected to be applied to a hybrid car. Previous studies have presented a one-sided FPEG that uses a combustion chamber and an air spring chamber. However, loss of the air spring chamber has been observed.
Tatsuki Suzuki +7 more
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Research on control strategy of free-piston stirling-engine linear-generator system
2014 17th International Conference on Electrical Machines and Systems (ICEMS), 2014The free-piston Stirling-engine linear-generator system can make efficient use of multiple energy resources, so it has great application potential in the fields of aeronautics and astronautics including space station, human lunar exploration, space vehicle, etc.
Ping Zheng +4 more
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2018 21st International Conference on Electrical Machines and Systems (ICEMS), 2018
A free-piston engine linear generator (FPEG) system is a linear generator, which generates electricity when a free piston reciprocates the combustion thrust produced by internal combustion. It is expected that this system can be applied to hybrid vehicles. In this paper, we propose a cylindrical double stator linear synchronous generator to exclude the
Yuichiro Yamanaka +6 more
openaire +1 more source
A free-piston engine linear generator (FPEG) system is a linear generator, which generates electricity when a free piston reciprocates the combustion thrust produced by internal combustion. It is expected that this system can be applied to hybrid vehicles. In this paper, we propose a cylindrical double stator linear synchronous generator to exclude the
Yuichiro Yamanaka +6 more
openaire +1 more source