Characterisation of FBG based Magnetic Field Sensor Response Sensitivity to Excitation Orientation for Rotating Electric Machine Applications

Melecio, Juan I.; Mohammed, Anees; Djurović, Siniša

doi:10.1109/meco.2019.8760181

Cited by 6 publications

(8 citation statements)

References 17 publications

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“…Other EM practical issues and parameters are monitored by employing FOS systems as well, including the EM's electric (Marignetti et al 2016;Fusiek et al 2008) or magnetic fields (Barczak et al 2009;Melecio et al 2019) (i.e. current, flux, and power), partial discharge detection (Rosolem et al 2010;Wang et al 2018) and dynamic eccentricity monitoring (Sousa et al 2016).…”

Section: Other Em Parameters Monitoringmentioning

confidence: 99%

Fibre optic sensors for the monitoring of rotating electric machines: a review

et al. 2021

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Accurate and efficient monitoring of electrical machine (EM) operating parameters, including temperature, mechanical vibration, torque and rotating speed and others that can indicate the EM health conditions is becoming ever more important in the world of electrical drives. The traditional methodology of one sensor per parameter can be theoretically replaced by a "one sensor measures all" technology, which can be achieved through the use of fibre-optic sensors (FOS). In this paper, several FOSs, which use different optical sensing principles for multiple physical parameter measurements of EMs, are reviewed. This paper also provides an insight into the major developments, and discusses the engineering challenges of FOS used for EM monitoring over the last few decades, and compares the advanced features of FOS with those of conventional sensors in use. Finally, a novel FOS-EM observer system scheme employing the Fibre Bragg Grating technique for multiparameter monitoring of EM health is proposed, after discussion of the preceding industrial and academic FOS cases for EM applications.

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Section: Other Em Parameters Monitoringmentioning

confidence: 99%

Fibre optic sensors for the monitoring of rotating electric machines: a review

et al. 2021

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“…The core functionality of the magnetic sensor proposed in this study is based on combining the FBG inherent strain sensing feature with high magnetostriction properties of Terfenol-D material [16], [17]. The following sub-sections present the details of the sensor design, prototyping and calibration procedures.…”

Section: In-situ Magnetic Sensor Designmentioning

confidence: 99%

“…To ensure optimal sensor performance while delivering a minimally invasive and fully retrofittable monitoring capability the sensor is designed to be integrated within a modified stator slot wedge structure: this allows for effective exposure of the Terfenol-D plate to the rotating PM radial field, while minimally interfering with the main flux paths into the stator teeth and requiring no physical disturbance to the machine magnetic circuit or structure. Furthermore, to simplify the sensor application and allow for a more practical design while retaining sensing functionality, a Terfenol-D plate directed axially, lengthwise along the slot wedge structure and with its anisotropy axis perpendicular to the observed PM field, is used [16]. This ensures the magnetic sensor is located as close as possible to the rotor magnets.…”

Section: Fbg-magnetostrictive Sensor Design and Prototypingmentioning

confidence: 99%

“…The FBG sensing technology, with its advanced features such as small size, Electromagnetic Interference Immune (EMI), multiplexing and multi-physical sensing presents a promising proposition for enabling targeted in-situ monitoring of machine multi physical operating conditions. FBG magnetic sensing applications for electrical machine monitoring are only starting to be examined, with very recent reports suggesting encouraging potential for this application in non-permanent magnet machines (induction machine and hydro generator) but not exploring PM machine applications [14]- [16]. Furthermore, the application of reported magnetic sensing methods to a wider range of electrical machines would be practically limited, due to their design imposing either requirements for invasive installation methods, or limitations on the sensor integration within an arbitrary test machine geometry.…”

Section: Introductionmentioning

confidence: 99%

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Electrical Machine Permanent Magnets Health Monitoring and Diagnosis Using an Air-Gap Magnetic Sensor

2020

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this study proposes a magnetic sensor design and application for monitoring the health of rotor magnets in permanent magnet (PM) electrical machines through in-situ observation of the air-gap magnetic flux density. The reported device employs the concept of Fibre Bragg Grating (FBG) strain sensing fusion with magnetostrictive material to deliver a machine stator slot wedge integrated sensor that allows straightforward installation and retrofit with no invasive action to core elements of the machine. The sensing theory, design, prototyping, calibration and installation of the proposed magnetic sensing scheme are detailed in the paper. The sensor was installed into an inverter driven surface mount PM synchronous machine (SPMSM) and its performance for in-situ observation of rotor PM magnetization conditions validated in a range of healthy and demagnetised PM conditions tests. The obtained experimental data demonstrate the reported device's capability to enable recognition of rotor PMs' magnetisation level and thus their health monitoring. Finally, a fault index is proposed and experimentally validated that allows the application of in-situ magnetic sensor measurements for relative quantification of PM demagnetization fault severity.

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“…Fiber optic fiber Bragg grating (FBG) sensing technology has been emerging as a strong alternative that could provide solutions for advanced in situ sensing within electric machine geometries. Its inherent features of electromagnetic interference (EMI) immunity, small size, power passivity, flexibility, and ability to multiplex sensing provide opportunities to overcome many of the existing limitations with sensing used in electric machine CMs [10][11][12]. While FBG sensors are inherently responsive to mechanical and thermal excitation, they can be adapted to measure other physical phenomena of interest in electromagnetic rotary devices, such as through the integration of magnetostrictive material for magnetic flux measurement [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Fiber Optic Fiber Bragg Grating Sensing for Monitoring and Testing of Electric Machinery: Current State of the Art and Outlook

et al. 2022

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This paper presents a review of the recent trends and the current state of the art in the application of fiber optic fiber Bragg gratings (FBG) sensing technology to condition the monitoring (CM) and testing of practical electric machinery and the associated power equipment. FBG technology has received considerable interest in this field in recent years, with research demonstrating that the flexible, multi-physical, and electromagnetic interference (EMI) immune in situ sensing of a multitude of physical measurands of CM interest is possible and cannot be obtained through conventional sensing means. The unique FBG sensing ability has the potential to unlock many of the electric machine CM and design validation restrictions imposed by the limitations of conventional sensing techniques but needs further research to attain wider adoption. This paper first presents the fundamental principles of FBG sensing. This is followed by a description of recent FBG sensing techniques proposed for electric machinery and associated power equipment and a discussion of their individual benefits and limitations. Finally, an outlook for the further application of this technique is presented. The underlying intention is for the review to provide an up-to-date overview of the state of the art in this area and inform future developments in FBG sensing in electric machinery.

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Characterisation of FBG based Magnetic Field Sensor Response Sensitivity to Excitation Orientation for Rotating Electric Machine Applications

Cited by 6 publications

References 17 publications

Fibre optic sensors for the monitoring of rotating electric machines: a review

Fibre optic sensors for the monitoring of rotating electric machines: a review

Electrical Machine Permanent Magnets Health Monitoring and Diagnosis Using an Air-Gap Magnetic Sensor

Fiber Optic Fiber Bragg Grating Sensing for Monitoring and Testing of Electric Machinery: Current State of the Art and Outlook

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