Axial position estimation of conical shaped motor for green taxiing application

Roggia, Sara; Galea, Michael; Gerada, Chris; Cupertino, Francesco

doi:10.1109/ecce.2016.7854895

Cited by 9 publications

(4 citation statements)

References 11 publications

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“…From a more system-level perspective, an innovative solution to replace the clutch system is presented in [97]- [100]. A conical two degrees of freedom induction machine, whose shape and geometry permit both rotational and axial movements, would eliminate the need for the mechanical clutch and the ensuing challenges associated to it, such as the need for accurate synchronization between wheel and TM.…”

Section: A) Electro-mechanical Drive Systemmentioning

confidence: 99%

Review, Challenges, and Future Developments of Electric Taxiing Systems

Lukic

Giangrande

Hebala

et al. 2019

IEEE Trans. Transp. Electrific.

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The ever-increasing demand for passenger air traffic results in larger airline fleets every year. The aircraft market forecast reveals an unprecedented growth for the coming decades, leading to serious environmental and economic concerns among airlines and regulatory bodies. Different approaches, for both airborne and ground operations, have been proposed to reduce and control emissions without compromising profit margin. For on-ground activities, the electric taxiing (ET) methodology is one of the suggested solutions for reducing the emissions and the acoustic noise in the airport, and for lowering the fuel consumption and operating costs. This paper thus aims to review and collate the more important literature related to electric taxiing systems (ETSs), in order to draw an inclusive picture regarding the current state of the art of a moving and growing sector that just started its first steps towards an ambitious target. After introducing the general concept of ET, elaborations on the benefits and challenges of available technologies are done with a detailed comparison of the different systems. Finally, recommendations for future research and outlook on ET are presented.

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Section: A) Electro-mechanical Drive Systemmentioning

confidence: 99%

Review, Challenges, and Future Developments of Electric Taxiing Systems

Lukic

Giangrande

Hebala

et al. 2019

IEEE Trans. Transp. Electrific.

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show abstract

“…As mentioned above, this is dependent and proportional to the level of magnetizing current and the motor saliency. The monitoring procedure, in fact, is based on a self-sensing technique [41,42] that requires the injection of a highfrequency voltage signal and then tracks changes in the machine parameters in order to relate them to the rotor axial position. A perceived advantage of this 'sensor-less' technique is, of course, the lack of dependency on linear position sensors, which could be detrimental in terms of component count and system reliability.…”

Section: Axial Movement Assessmentmentioning

confidence: 99%

“…7, the high-frequency voltage is generated and added to the main voltage in αβ reference frame, thus it represents a rotating vector. As demonstrated in [41,42], the changes in motor saliency cause the variation of the amplitude of the negative sequence signal of the high-frequency current response (In) to the injection signal. The values of In have been recorded for different levels of magnetizing current (Id) and different axial positions.…”

Section: Axial Movement Assessmentmentioning

confidence: 99%

A two-degrees-of-freedom system for wheel traction applications

Roggia

Cupertino

Gerada

et al. 2018

IEEE Trans. Ind. Electron.

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In this paper, the use of conical induction machines is proposed for an in-wheel traction application. Such machines offer a rotational movement combined with a translational motion of the rotor. The horizontal movement is essential when active engagement and disengagement of the motor from the wheel without any extra mechanical component is required. This paper first investigates the basic concepts of how the conical machine functions and then proposes a mission strategy for a relevant traction application. A detailed description of the full scheme is given. In order to achieve the required performance, an innovative control method for both degrees of freedom of the machine (i.e. torque production and axial movement) is proposed and validated against a small-scale demonstrator of the whole system.

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“…As suggested in [17], the implementation of a conical actuator [18] enables to have a physical, "active" disconnection mechanism between the motor and the wheel without having to rely on extra components.…”

Section: Introductionmentioning

confidence: 99%

Axial Position Estimation of Conical Shaped Motors for Aerospace Traction Applications

Roggia

Cupertino

Gerada

et al. 2017

IEEE Trans. on Ind. Applicat.

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-This paper is concerned with the use of conical induction machines. Such machines are extremely valuable when apart from the rotational torque output, an axial translation of the rotor is also required. The inherent attraction between the stator and rotor of any machine, combined with the geometry of a conical machine will provide the required axial movement. However, when applied to aerospace applications, where reliability is very important, then full monitoring of the axial position is required. In this paper, an innovative approach aimed at monitoring and controlling the axial translation of a conical induction machine is proposed and investigated. In order to increase the system reliability and also decrease component count, as demanded by the application, the methodology is a sensor-less technique, based on an innovative variant of the highfrequency injection approach. In this paper, the technique has been fully investigated and experimentally validated on a purposely-built, instrumented test-rig.Index Terms--conical motor; sliding rotor; high voltage signal injection; in-wheel actuator.

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Axial position estimation of conical shaped motor for green taxiing application

Cited by 9 publications

References 11 publications

Review, Challenges, and Future Developments of Electric Taxiing Systems

Review, Challenges, and Future Developments of Electric Taxiing Systems

A two-degrees-of-freedom system for wheel traction applications

Axial Position Estimation of Conical Shaped Motors for Aerospace Traction Applications

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