Characteristics Measurement of Electric Motors by Contactless Eddy-Current Magnetic Coupler

Tsai, Mi Ching; Chiou, Kwei Yuan; Wang, Sheng He; Lin, Ching Kuo

doi:10.1109/tmag.2014.2332536

Cited by 16 publications

(13 citation statements)

References 9 publications

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“…Research has shown the efficiency of eddy-current couplings is optimal in the case of low slip [7,10], thus, it makes more sense to study the torque model in this condition. Moreover, in such case, the reaction field produced by the eddy currents in conductor plate can be ignored [10,24], therefore, the effective magnetic field in the air-gap is approximatively derived from PM, i.e. B g .…”

Section: Transmission Torquementioning

confidence: 99%

“…Thus, the critical slip can be given by (24) In fact, it is difficult to deduce theoretically the restricted slip. Thus, it has to be determined to follow the principle that it has minimal departure from the analytical solution.…”

Section: Consideration Of Restricted Slipmentioning

confidence: 99%

“…MEC is a compromise of the aforementioned methods, offering some benefits, such as less computational complexity and satisfactory accuracy. Some previous work on the application of MEC in such devices is given in [23][24][25]. However, in our work, subregion MEC is developed, which can considerably reduce the complexity of the model and analysis.…”

Section: Introductionmentioning

confidence: 99%

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Performance Prediction and Analysis of Adjustable-speed Permanent Magnet Eddy-current Couplings

Li¹,

Qu²,

Wang³

2019

JMAG

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This paper presents an accurate yet simple analytical model to predict the torque characteristics of an adjustable-speed permanent magnet eddy-current coupling in the low slip working area. Based on an improved magnetic equivalent circuit method, the flux density is quantitatively calculated, and then the general explicit expression of electromagnetic torque is developed. Moreover, the saturation effect of ferromagnetic materials and the restricted slip have been reasonably taken into account. Compared with the 3-D finite element analysis and measurement results, the validity of this model is confirmed. In addition, several important parameters of such devices are analyzed and discussed.

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Section: Transmission Torquementioning

confidence: 99%

Section: Consideration Of Restricted Slipmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Performance Prediction and Analysis of Adjustable-speed Permanent Magnet Eddy-current Couplings

Li¹,

Qu²,

Wang³

2019

JMAG

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“…The electric eddy current dynamometer [11] is a measurement test equipment that is widely applied at present, which is mainly composed of an eddy current retarder brake (rotor, vortex ring and field winding, etc. ), dynamometry components, velocity measurement component and control system.…”

Section: Design Of the Electric Eddy Current Dynamometermentioning

confidence: 99%

Design and Study of Swimming Exercise Equipment: Strength Training of Improving Core Muscles

2017

IJOMAM

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-as the technology develops, the mechanical-electrical integrated exercise equipment has been paid attentions to by more and more sports enthusiasts. In the swimming exercise, highquality training equipment can speed up the training progress, enhance and consolidate swimming skills, improve the strength training of the core muscles and strengthen the special quality of swimming. Currently, foreign core strength training equipment has many advantages because it adopts isokinetic equipment mode of exercise training which can completely simulate the underwater sports environment and realize real-time monitoring of training data while domestic one has deficiencies of imperfect mechanical structure design and unstable mechanical friction plus resistance output. On the basis of fully understanding the core muscle group and the core strength training theory, this paper carries out the design and research of swimming practice equipment. Through the absorption of foreign excellent experience, good core muscle training effect was achieved.

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“…Due to the advantage of noncontact connection, an inductively coupled power transfer (ICPT) system has recently made great developments in special fields such as electric vehicles, mobile devices, and biomedical implants [4][5][6][7][8][9]. In the harsh underwater environment, ICPT technology is Under ideal conditions, the primary and secondary windings are fully coupled and all impedance is ignored, and the magnetic flux in any section of a core is identical.…”

Section: Introductionmentioning

confidence: 99%

Design and Optimization of an Inductively Coupled Power Transfer System for the Underwater Sensors of Ocean Buoys

Cheng

Xie

et al. 2017

Energies

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Batteries are commonly used as the power source of present underwater sensors of ocean buoys. However, batteries need to be frequently replaced, which is costly. To implement the real-time power supply for a buoy's underwater sensor, a new inductively coupled power transfer (ICPT) system that consists of two couplers and a closed cable is proposed in this paper. The special closed cable, which is the both mooring cable and transmission media, is designed to diminish the influence of changes on impedance. A model of the particular ICPT system is established. Optimization of system parameters are carried out based on the model and verified by means of the simulations. Resonant compensation is used to improve the power transfer performance. Finally, many experiments are implemented to compare with the original prototype. It is confirmed that this system can help solve the difficulty of the energy limit to a buoy's underwater sensor.

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Characteristics Measurement of Electric Motors by Contactless Eddy-Current Magnetic Coupler

Cited by 16 publications

References 9 publications

Performance Prediction and Analysis of Adjustable-speed Permanent Magnet Eddy-current Couplings

Performance Prediction and Analysis of Adjustable-speed Permanent Magnet Eddy-current Couplings

Design and Study of Swimming Exercise Equipment: Strength Training of Improving Core Muscles

Design and Optimization of an Inductively Coupled Power Transfer System for the Underwater Sensors of Ocean Buoys

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