Improved Analytical Modeling of a Novel Ironless Linear Synchronous Machine With Asymmetrical Double-Layer Winding Topology

Xie, Zhedong; Lu, Qinfen; Mei, Weihu; Li, Yanxin

doi:10.1109/tia.2020.3048325

Cited by 13 publications

(2 citation statements)

References 24 publications

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“…Zhao et al [19] proposed an improved two-dimensional study that addressed the effect of the asymmetry problem on the electromagnetic characteristics of iron-free permanent magnet linear synchronous motors with non-overlapping windings. According to different mechanical analysis models, Xie et al [20] optimized the end force generated in the open-circuit state of the permanent magnet synchronous motor. However, due to the complexity of traditional engines and linear motor structures, there are still many difficulties in coordinating dual power units.…”

Section: Literature Reviewmentioning

confidence: 99%

Design Optimization of Electrodynamic Structure of Permanent Magnet Piston Mechanical Electric Engine

2021

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To meet the demand of multiple power requirements, and enhance power utilization, a new type of dual-element electricity unit is designed in this study, which is a permanent magnet piston mechanical electric engine. Based on the analysis method of traditional internal combustion engines and linear generators, the working principle of the engine and the magnetic field distribution in the electrodynamic structure are analyzed, the machine dynamics model and electrodynamics model of the engine are established, then the theoretical evaluation is additionally established using finite elements. Based on this, an optimization model is constructed with the electrodynamic shape dimension as the optimization variable, with the intention of growing the output power. The optimization of the engine electrodynamic shape is executed via the use of the finite aspect approach and the NLPQL optimization algorithm integrated. The results show that the optimized engine output electricity expanded to 8.40 w, which is 18.81% greater than before optimization. An experimental prototype is developed, and the output voltage of the prototype is measured to verify the precept and overall performance of the new structure.

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Section: Literature Reviewmentioning

confidence: 99%

Design Optimization of Electrodynamic Structure of Permanent Magnet Piston Mechanical Electric Engine

2021

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“…The use of rotating ironless permanent magnet generators is also of interest for wind turbine power generation [26,27]. Regarding the use of ironless linear permanent magnet machines, the main applications are related to launchers, semiconductor processing devices, photoetching machines and automation equipment [28][29][30][31]. In the literature, only a few papers address the design and experimental performance analysis of ironless PMLG for wave energy conversion.…”

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An Experimental Comparison between an Ironless and a Traditional Permanent Magnet Linear Generator for Wave Energy Conversion

et al. 2022

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Permanent Magnet Linear Generators (PMLGs) are currently being studied for sea wave energy harvesting. Typically, a PMLG consists of an iron-made armature and a moving translator. The permanent magnets adoption produces parasitic effects, such as cogging force, and the machine weight increment. A solution could be the adoption of an ironless configuration, accepting a power density reduction. This paper investigates the use of ironless PMLGs in sea wave energy conversion systems by an experimental comparative analysis between an iron PMLG prototype and an ironless PMLG prototype, which share the same geometry. The main electrical and mechanical parameters (resistance, mass, and magnetic fields) were preliminarily measured. Subsequently, open-circuit and load tests were carried out to compare the induced voltages, the energy transferred to a resistive load, efficiency and the load average power. The reported comparison shows that iron PMLG performances are significantly superior to the ironless ones during the open-circuit tests, as expected. However, the analysis carried out through the load tests shows that the cogging force significantly limits the energy production, obtaining similar values in both machines. Therefore, the experimental tests justify the use of ironless machines in sea wave energy harvesting, where the maximization of energy production is a relevant target.

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Modified modeling and internal model control method of thrust ripples in PMLSMs for ultraprecision air-bearing linear feed systems

Yuan,

Li,

Ding

2024

Precision Engineering

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Improved Analytical Modeling of a Novel Ironless Linear Synchronous Machine With Asymmetrical Double-Layer Winding Topology

Cited by 13 publications

References 24 publications

Design Optimization of Electrodynamic Structure of Permanent Magnet Piston Mechanical Electric Engine

Design Optimization of Electrodynamic Structure of Permanent Magnet Piston Mechanical Electric Engine

An Experimental Comparison between an Ironless and a Traditional Permanent Magnet Linear Generator for Wave Energy Conversion

Modified modeling and internal model control method of thrust ripples in PMLSMs for ultraprecision air-bearing linear feed systems

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