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This paper investigates the influences of the initial temperature on the performance of free piston linear generator (FPLG). Based on multi-dimensional combustion model, the effects of initial temperature on in-cylinder pressure, in-cylinder temperature and NOx emissions are studied. The cause of NOx in internal combustion engine is introduced and the NOx formation mechanism of gasoline FPLG is explored...
This paper proposes a new structure of free-piston linear generator (FPLG) which consists of double two-strokes combustion chambers with inner and outer piston-couples and a linear electric generator with multi-movers in order to improve the system efficiency. The one-dimensional thermodynamics model of the combustion chambers and the model of the linear electric generator have been respectively derived...
The free piston energy converter (FPEC) is a new type of power unit for hybrid electric vehicle. In a FPEC, an internal combustion engine driven permanent magnet linear generator (PMLG) may be utilized to produce electrical energy. This paper discusses the issues that are pertinent to the design of a linear permanent magnet generator for application in a FPEC. To achieve the required high power density...
In order to improve the wind energy utilization factor of wind-power generation system, a new type of Permanent Magnet Synchronous Generator(PMSG) with Opposite-rotation Dual Rotors(ODR) has been proposed in this paper, mechanical structure and operation mechanism have been discussed. Magnetic field has been analyzed by FEM and circuit method. Magnetic flux, flux density and EMF are calculated to...
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