Analysis and Design of Hybrid Excitation Linear Eddy Current Brake

doi:10.1109/tec.2014.2307164

Cited by 47 publications

(4 citation statements)

References 18 publications

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“…Therefore, a variety of criteria can be adopted for the classification of double excitation machines. A classical classification criteria used for other types of electric machines can be applied; such as magnetic flux paths as in 2D and 3D structures, linear [27,28] and rotating machines, axial field [18,29,30] and radial field structures. However, with regards to the structural particularity of double excitation machines, i.e., dual excitation flux sources, two criteria seem more appropriate for their classification [6]:…”

Section: Classification Criteria Of Hybrid Excitation Synchronous Macmentioning

confidence: 99%

“…It should be highlighted that HESMs are used in a large variety of applications. In [27], authors presented the design of a hybrid excitation linear eddy current brake which could be used in different applications, i.e., vibration suppression, vehicle suspension systems, high-speed train braking systems, transmission systems, etc. In [28], authors presented the design of a hybrid excited linear machine for oceanic wave power generation.…”

Section: Classification Criteria Of Hybrid Excitation Synchronous Macmentioning

confidence: 99%

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Study of a Hybrid Excitation Synchronous Machine: Modeling and Experimental Validation

Asfirane

Hlioui

Amara

et al. 2019

MCA

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This paper deals with a parallel hybrid excitation synchronous machine (HESM). First, an expanded literature review of hybrid/double excitation machines is provided. Then, the structural topology and principles of operation of the hybrid excitation machine are examined. With the aim of validating the double excitation principle of the topology studied in this paper, the construction of a prototype is presented. In addition, both the 3D finite element method (FEM) and 3D magnetic equivalent circuit (MEC) model are used to model the machine. The flux control capability in the open-circuit condition and results of the developed models are validated by comparison with experimental measurements. The reluctance network model is created from a mesh of the studied domain. The meshing technique aims to combine advantages of finite element modeling, i.e., genericity and expert magnetic equivalent circuit models, i.e., reduced computation time. It also allows taking the non-linear characteristics of ferromagnetic materials into consideration. The machine prototype is tested to validate the predicted results. By confronting results from both modeling techniques and measurements, it is shown that the magnetic equivalent circuit model exhibits fairly accurate results when compared to the 3D finite element method with a gain in computation time.

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Section: Classification Criteria Of Hybrid Excitation Synchronous Macmentioning

confidence: 99%

Section: Classification Criteria Of Hybrid Excitation Synchronous Macmentioning

confidence: 99%

Study of a Hybrid Excitation Synchronous Machine: Modeling and Experimental Validation

Asfirane

Hlioui

Amara

et al. 2019

MCA

View full text Add to dashboard Cite

show abstract

“…Performance factors can include peak force, continuous force, etc. Compared with other brakes (such as magneto-rheological brakes and mechanical brakes), eddy current brakes have the following advantages [26]: 1) A simple device structure, relatively easy to model and high force density; 2) No mechanical contact between the primary and the secondary, low noise and high reliability; 3) In principle, fluctuation of the braking force is eliminated.…”

Section: Structure Of Pm Eddy Current Brakementioning

confidence: 99%

Analytical Model for a Permanent Magnet Eddy-Current Brake With Transverse Edge Effect

Jin

et al. 2019

IEEE Access

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In this paper, the analytical model of a permanent magnet (PM) linear eddy current brake is presented with consideration of transverse edge effects. The transverse edge effects can be divided into static and dynamic effects. The static transverse edge effect is caused by the diffusion of the magnetic flux in the core edge, and the dynamic transverse edge effect is caused by the paths of the eddy currents in the conductor plate. First, the structure and working principle of the eddy current brake are described. Next, the static air gap magnetic flux of the eddy current brake with the static transverse edge effect is analyzed using a multilayer analysis model and conformal mapping method. The braking force of the eddy current brake is then calculated while taking the dynamic transverse edge effect into consideration. Finally, the validity of the analytical model is verified by 3D finite element method (FEM).

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“…Domestic and foreign scholars have conducted studies focusing on suppressing damping forces based on the cooling structure of linear motors. Professor Baoquan Kou devel-oped a model for calculating the damping force of a conductor plate, which can control the damping force by adjusting the size of the metal plate, according to the analytical formula [13]. Yinxi Jin proposed an analytical model that considers the transverse edge effect for bilateral-type permanent magnet linear motors.…”

Section: Introductionmentioning

confidence: 99%

Analysis and Suppression of the Eddy Current Damping Force of the Cooling Plate of a Permanent Magnet Linear Motor

Wang¹,

Sun²,

Kang³

et al. 2021

Symmetry

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This paper proposes a new symmetrical cooling plate. It can significantly reduce the eddy current damping force of the water-cooled metal plate. To increase the thrust density of coreless permanent magnet linear motors, cooling plates must be placed on the armature surface to reduce the temperature rise that is caused by high electrical density. However, when the motor moves at a high speed, extra damping force will be generated in the cooling plate, which affects the thrust quality and precision of the permanent magnet linear motor. In this study, we elaborate the mechanism of damping force generation in the cooling plate and propose a new symmetrical cooling plate with low damping force. This paper introduces the topology of a linear motor cooling system and presents an analytical model of the eddy current distribution of a water-cooled plate. The surface current equivalence method is used to calculate the magnitude of the damping force. A new, symmetrical water-cooled plate design method is proposed. This method uses the eddy current vector synthesis principle to cancel the eddy currents that are generated in each region, and to reduce the damping force that is generated in the cooling plate during motor motion. Finally, a 3D simulation model of the motor system is established and an experimental platform is built. The correctness of the analytical model and the effectiveness of the cooling plate design are verified using a simulation and an experiment.

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Analysis and Design of Hybrid Excitation Linear Eddy Current Brake

Cited by 47 publications

References 18 publications

Study of a Hybrid Excitation Synchronous Machine: Modeling and Experimental Validation

Study of a Hybrid Excitation Synchronous Machine: Modeling and Experimental Validation

Analytical Model for a Permanent Magnet Eddy-Current Brake With Transverse Edge Effect

Analysis and Suppression of the Eddy Current Damping Force of the Cooling Plate of a Permanent Magnet Linear Motor

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