Wireless sensor for field quantities measurement in brushless synchronous machines

Fonseca, Julio S.; Coelho, Caique U.; Bortoni, Edson C.

doi:10.1109/pesgm.2017.8274714

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2020

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“…Therefore, several procedures to estimate this current exist [28]. To overcome these difficulties, it is possible to install current sensors in the rotor that connect wirelessly to an external device [29]. However, this solution cannot be applied to an industrial SG where any device placed in its rotor should withstand severe centrifugal forces and vibrations.…”

Section: Introductionmentioning

confidence: 99%

AC/DC Current Sensor for Rotating Applications

Pardo-Vicente

Platero

Sánchez-Fernández

et al. 2020

Sensors

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There are several techniques for current measurement. Most of them are capable of measuring both alternating and direct current (AC/DC) components. However, they have severe drawbacks for rotating applications (large size, sensitivity to external fields, and low signal amplitude). In addition to these weaknesses, measured signals should be transmitted to a stationary part. In order to contribute solving these difficulties, this paper presents a sensor that can measure AC/DC simultaneously based on the electromagnetic coupling of two coils. To this aim, the measured waveform is analysed. In this paper, the design of such a sensor is presented. This design is validated through computer simulations and a prototype is built. The performance of this sensor prototype is analysed through experimental tests.

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Section: Introductionmentioning

confidence: 99%