Design and Experimental Verification of a Linear Permanent Magnet Generator for a Free-Piston Energy Converter

Wang, Jiabin; West, M.J.; Howe, D.; Parra, Hector Zelaya De La; Arshad, W.M.

doi:10.1109/tec.2006.875434

Cited by 115 publications

(68 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The possible solution to decrease the mass of longitudinal mover is the ironless mover with Halbach array permanent magnets. The leakage flux of the Halbach array magnetized permanent without mover back iron is relatively weak due to the virtually self-shielding property [1].…”

Section: Design Consideration Of a Linear Generatormentioning

confidence: 99%

“…Unlike conventional engines that the piston motion is deter mined by the crank system, the piston motion of free piston engine is determined by the instantaneous force balance on the mover, which the piston motion may vary for different operat ing conditions. Numerous linear generators for integration in the free piston engine have been analyzed [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Design considerations of a linear generator for a range extender application

Seo

Riemer

Appunn

et al. 2015

Archives of Electrical Engineering

View full text Add to dashboard Cite

Abstract:The free piston linear generator is a new range extender concept for the application in a full electric vehicle. The free piston engine driven linear generators can achieve high efficiency at part and full load which is suitable for the range extender application. This paper presents requirements for designing a linear generator deduced from a basic analysis of a free piston linear generator.

show abstract

Section: Design Consideration Of a Linear Generatormentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design considerations of a linear generator for a range extender application

Seo

Riemer

Appunn

et al. 2015

Archives of Electrical Engineering

View full text Add to dashboard Cite

show abstract

“…Hence, linear machines are being used increasingly in applications ranging from manufacturing automation [2,3], electromagnetic launcher [4], transportation [5,6] and electrical power generation [7][8][9], to household appliances [10] and healthcare [11]. Within the various types of linear machines, tubular permanent magnet (PM) linear machines are quite promising for linear drive systems because of their distinctive features, including high power density, low force ripple, no unbalanced magnetic force on the shaft, and excellent servo characteristics, etc.…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis and Modeling of a Tubular Staggered-Tooth Transverse-Flux PM Linear Machine

Zhu

Zheng

et al. 2016

Energies

View full text Add to dashboard Cite

This paper investigates the performance analysis and mathematical modeling of a staggered-tooth transverse-flux permanent magnet linear synchronous machine (STTF-PMLSM), which is characterized by simple structure and low flux leakage. Firstly, the structure advantages and operation principle of the STTF-PMLSM are introduced, and a simplified one phase model is established to investigate the performance of the machine in order to save the computation time. Then, the electromagnetic characteristics, including no-load flux linkage, electromotive force (EMF), inductance, detent force and thrust force, are simulated and analyzed in detail. After that, the theoretical analysis of the detent force, thrust force, and power factor are carried out. And the theoretical analysis results are validated with 3-D finite-element method (FEM). Finally, an improved mathematical model of the machine based on d-q rotating coordinate system is proposed, in which inductance harmonics and coupling between d-and q-axis inductance is considered. The results from the proposed mathematical model are in accordance with the results from 3-D FEM, which proves the validity and effectiveness of the proposed mathematical model. This provides a powerful foundation for the control of the machine.

show abstract

“…They have been used in a wide range of applications, such as vehicle active suspensions [1], free-piston energy converter [2], refrigeration applications [3], aerospace applications [4], etc. However, the fraction-slot windings produce a large number of space harmonics in the stator magneto-motive-force (mmf), which travels at different speeds relative to the permanent magnet mover, and hence cause many undesirable effects such as localized core saturation, eddy current losses in permanent magnets and back-iron, acoustic noise and vibrations.…”

Section: Introductionmentioning

confidence: 99%

Performance evaluation of fractional-slot tubular permanent magnet machines with low space harmonics

Wang

2015

Archives of Electrical Engineering

Self Cite

View full text Add to dashboard Cite

This paper evaluates the perforamnce of fractional-slot per pole winding configurations for tubular permanent magnet (PM) machines that can effectively eliminate the most undesirable space harmonics in a simple and cost-effective manner. The benefits of the proposed machine topology winding configurations are illustrated through comparison with 9-slot, 10-pole tubular PM machine developed for a free piston energy converter under the same specification and volumetric constraints. It has been shown that the proposed machine topology results in more than 7 times reduction in the eddy current loss in the mover magnets and supporting tube, and hence avoids potential problem of excessive mover temperature and risk of demagnetization.

show abstract

Design and Experimental Verification of a Linear Permanent Magnet Generator for a Free-Piston Energy Converter

Cited by 115 publications

References 9 publications

Design considerations of a linear generator for a range extender application

Design considerations of a linear generator for a range extender application

Performance Analysis and Modeling of a Tubular Staggered-Tooth Transverse-Flux PM Linear Machine

Performance evaluation of fractional-slot tubular permanent magnet machines with low space harmonics

Contact Info

Product

Resources

About