A Double-Sided Flat Permanent Magnet Linear Motor with Dual Halbach for Free-Piston Linear Generator

Chen, Feixue; Zhang, Chi; Chen, Jinhua; Zhang, Jie; Wei, Mengfei; Xu, C.; Yang, Guilin

doi:10.1109/ifeec47410.2019.9014682

Cited by 2 publications

(8 citation statements)

References 16 publications

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“…The Chinese Academy of Sciences presented the double-side quasi-Halbach arranged PMs for high air-gap magnetic flux density. 15,107 With this magnetic circuit, a lightweight and non-magnetic material can be used as the supporting plate for a lower mass mover and higher power density, see Figure 16.…”

Section: Advancement Of Linear Generatorsmentioning

confidence: 99%

“…Typically, for low mover mass, some lightweight, non-conductive materials, such as aluminium alloy, 15 titanium alloy, 113 carbon fibre, and glass fibre, 14 were used to support the mover, therefore allowing higher frequency and shorter cycle time. The material consideration of movers is always associated with the motion control at the dead centres, where a lighter mover with a swift change of velocity direction would always benefit the efficiency.…”

Section: Advancement Of Linear Generatorsmentioning

confidence: 99%

“…However, dynamic testing platforms are not standard equipment for LGs. Different types of reciprocating motion test benches can be found in the literature: linear motor-driven platform, 101 rotary motor-driven platform, 15 and air cylinder-driven platform. 100…”

Section: Advancement Of Linear Generatorsmentioning

confidence: 99%

“…Similarly, the rotary motor-driven platform comprises a rotary motor and crankshaft connecting rod. It thus produces reciprocating motion to drive a LG prototype 15 to measure the parameters in interests under different frequencies. In such a testing platform, the motion profile depends on the kinematics of connecting rod and cannot be adjusted.…”

Section: Advancement Of Linear Generatorsmentioning

confidence: 99%

“…LGs investigated include the Quasi-Halbach, 15 Radial, 16 and Axial. 17 Investigations are ongoing for the development, performance optimisation and testing of LG to adapt to the unique characteristics of FP-LEG.…”

Section: Introductionmentioning

confidence: 99%

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Recent progress on performance and control of linear engine generator

Ngwaka

Chen

Qiu

et al. 2022

International Journal of Engine Research

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Linear engines, or widely called free piston engines, have their advantages compared to conventional engines with crankshafts, for example, lower friction loss, compact structure, fuel adaptability, flexible compression ratio, etc. Among the linear engine conceptual designs and prototypes, Linear Engine Generator (LEG) incorporating a linear engine (internal or external combustion) and a linear alternator provides an alternative and attractive solution for hybrid electrical powertrains in transport applications. Due to the advantages of linear engines, hydrogen, synthetic hydrogen carrier fuels and biofuels are easier to adopt on LEG, making it an appealing technology for decarbonisation. This paper explicitly reviews LEG research and development on state-of-art solutions and recent progress in linear engine improvement, linear alternator design optimisation, and integrated LEG system control. Key performance indicators of the linear engine generator, like power output, thermal and electrical efficiency, etc., are summarised to present a general picture of up-to-date LEG development. Recommendations for further LEG development are provided at the end of the paper regarding the review outcomes.

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Section: Advancement Of Linear Generatorsmentioning

confidence: 99%