Reluctance Network Model of a Permanent Magnet Tubular Motor

Waindok, Andrzej; Tomczuk, B.

doi:10.1515/ama-2017-0029

Cited by 5 publications

(7 citation statements)

References 16 publications

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“…Its value has to be calculated, e.g. from the finite element model (Waindok and Tomczuk, 2017). The second method is adding a reluctance that is connected parallel to the reluctance of the air gap (Waindok and Piekielny, 2016).…”

Section: Nonlinear Magnetic Equivalent Circuitmentioning

confidence: 99%

Nonlinear magnetic equivalent circuit of the hybrid magnetic bearing

Wajnert

Tomczuk

2019

COMPEL

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Purpose The purpose of this paper is to create a reliable nonlinear magnetic equivalent circuit (NMEC) of the hybrid magnetic bearing (HMB). Commonly used magnetic equivalent circuits of HMB omit a saturation effect of the magnetic material as well as the leakage and fringing flux. It results in imprecise modelling of the magnetic field distribution. On the other hand, only 3D finite element analysis (FEA) can be used to precisely simulate the magnetic field in this type of the magnetic bearing. The proposed NMEC incorporates the saturation effect of the magnetic material, as well as the leakage and fringing flux. Design/methodology/approach The magnetic equivalent circuit of presented HMB is proposed to obtain a reliable model that ensures short calculation time. Developed NMEC incorporates the phenomena as the saturation effect, as well as the leakage and fringing flux. The reluctance of the air gap that includes the fringing flux was calculated using 3D FEA. Kirchhoffs’ laws were used to create a set of nonlinear equations that were iteratively solved by Broyden’s method. Findings Incorporating into NMEC of the HMB a saturation effect of the magnetic material, as well as the leakage and fringing flux, resulted in the accurate model that was in good agreement with 3 D finite element model and the real object. The developed NMEC offers the calculation time in the range of miliseconds, therefore can be successfully used in the engineering design instead of the FEM. Originality/value Presented NMEC can be considered as a fundamental model that can be successfully used for accurate and fast simulation of the HMB. Proposed NMEC includes considerable factors that decide about the model accuracy such as the saturation effect of the ferromagnetic material and the leakage and fringing flux. The developed NMEC can be used in the optimization procedures and for simulations of dynamic responses.

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Section: Nonlinear Magnetic Equivalent Circuitmentioning

confidence: 99%

Nonlinear magnetic equivalent circuit of the hybrid magnetic bearing

Wajnert

Tomczuk

2019

COMPEL

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“…The coil magnetic energy and the electric energy are coupled, and the interchange depends also on the position of the magnets (Waindok and Tomczuk 2017). A distribution of the magnetic field is not uniform neither in the air gap nor in the ferromagnetic parts of the devices so it must be modeled as a continuous in space (Piskur and Just 2009).…”

Section: Theory -Mathematical Modelmentioning

confidence: 99%

ECMS 2019 Proceedings edited by Mauro Iacono, Francesco Palmieri, Marco Gribaudo, Massimo Ficco

2019

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The 33rd edition of the ECMS conference, a widely consolidated interdisciplinary forum for simulation and modeling researchers and practitioners that keeps its reference position year after year, brings with it two novelties: a new name and a new form of publication. In fact, to better catch in the name the actual situation of participants, the European Council for Modelling and Simulation decided to rename the event as "ECMS International Conference on Modelling and Simulation". This year, we also start a new book series of annual volumes, namely "Communications of the ECMS", which replaces the name "Proceedings" in order to acknowledge the recognition and reputation of the scientific community of simulation. This year the chosen conference venue is in Caserta, Italy. The Università degli Studi della Campania "Luigi Vanvitelli", previously known as Seconda Università degli Studi di Napoli, a state-owned university founded in 1990 with the explicit mission of meeting the cultural demand of the population living in the northern part of Campania. Caserta, famous for its wonderful royal palace, whose facilities will host the conference, is a city with a long history, already inhabited in the 5th century BC. It flourished in the middle age and then in the XVI-XVII century AD, surrounded by a geographical area rich of historical relevance that was under Roman influence.The university is characterized by its diffusion over the territory of the province of Caserta, having its 16 departments located in Caserta, Aversa and Santa Maria Capua Vetere, and Napoli, in which its roots can be found: the most of the departments are located in historical landmarks, that have been saved and recovered by specific agreements and funding. More than 25000 students from Italy and abroad study at Vanvitelli University enrolled in bachelor, master and PhD. curricula, taught as well in Italian as in English, and covering different aspects of mathematics, physics, data analytics, engineering, law, economics, political sciences, medicine, nursery, biotechnology, pharmacy, environmental sciences, cultural heritage, literature, psychology, tourism, design and architecture.We are honored to offer, besides the scientific program of the conference, consisting in more than 65 high quality accepted papers, a rich and various series of social events, as usual for the spirit of this conference.

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“…The magnetic coils energy and the electric energy are coupled and their interchange depends also on the position of the runner [13]. A distribution of the magnetic field is not uniform neither in the air gap nor in the ferromagnetic parts of the devices so it must be modelled as a continuous in space.…”

Section: Mathematical and Simulation Modelmentioning

confidence: 99%

“…What is more coil inductance depends on the runner position and the runner velocity as well [11]. The linear mathematical model of electromagnetic actuator is sufficient in some considerations, but not if a more accurate calculations are needed [13]. In this paper nonlinearity of the magnetic field distribution is presented as a function of discrete position of the runner.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Analysis of the Tubular Linear Actuator With Permanent Magnets

Just¹,

Piskur

Żokowski

2019

Scientific Journal of Polish Naval Academy

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In this paper a results of a transient analysis of the linear actuator is presented. The linear actuator consist of the three cylindrical unmovable coils surrounded by a soft ferromagnetic case, a runner made from sequence of ferromagnetic and permanent magnet rings. The model of the linear actuator was implemented into two software: the Comsol Multiphysics and the Matlab-Simulink. Both environments are commonly used in simulation analysis, but the first one uses Finite Element Method (FEM) and the second one uses Ordinary Differential Equations (ODE). Moreover, the dynamic model was analysed in Matlab-Simulink software with value of electromagnetic phenomena implemented from Comsol Multiphysics. Comparison was made due to the time needed for calculation, accuracy of the simulation model as well as the as utility for further optimization process.

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Reluctance Network Model of a Permanent Magnet Tubular Motor

Cited by 5 publications

References 16 publications

Nonlinear magnetic equivalent circuit of the hybrid magnetic bearing

Nonlinear magnetic equivalent circuit of the hybrid magnetic bearing

ECMS 2019 Proceedings edited by Mauro Iacono, Francesco Palmieri, Marco Gribaudo, Massimo Ficco

Dynamic Analysis of the Tubular Linear Actuator With Permanent Magnets

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