Thermal Design of an Integrated Inductor for 45kW Aerospace Starter-Generator

Rocca, A. La; Khowja, Muhammad Raza; Vakil, Gaurang; Gerada, Chris; Wheeler, Pat; Yan, Liang

doi:10.1109/itec48692.2020.9161617

Cited by 3 publications

(3 citation statements)

References 11 publications

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“…In comparison, the rotational inductor can only be used for high-speed motor drive systems, with the advantage of reducing a portion of the magnetic loss inside the rotor. In [12], a design of an integrated rotor-less inductor is presented which to be implanted for 45 kW motor-drive in aircraft applications. The impact of high current density, on inductor's mass and volume, has been investigated and compared against the conventional EE-core inductor.…”

Section: Introductionmentioning

confidence: 99%

Integrated Motor Drive: Mass and Volume Optimization of the Motor with an Integrated Filter Inductor

et al. 2021

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The present trend of aerospace industries is being shifted towards a “More Electric Aircraft” system which needs to be high power dense. For this purpose, the integration technologies have gained massive interest, providing the benefits of reduced losses, weight, volume and cost. In this article, the integration concept of a passive filter inductor is presented for a permanent magnet synchronous motor. The integrated motor eliminates the need of an external inductor, thus, eliminates the added inductor losses, mass, volume and cost associated with it. The motor utilizes its’s inherent inductance to use it as a filter inductor instead of implementing a discrete inductor that is commonly placed between inverter and the motor terminals. Optimization study is carried out, where the filter branch windings are tapped, in terms of improving mass and volume and performance parameters such as power losses and torque ripple. From the optimization study, the motor with minimum weight and volume is experimentally validated at the rated conditions, in order to prove the concept feasibility. Total system weight and volume of integrated and traditional motor drives are compared, which gives the minimum weight of 2.26 kg and 3.14 kg respectively, and the minimum volume of 0.54 L and 1.1 L respectively.

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Section: Introductionmentioning

confidence: 99%

Integrated Motor Drive: Mass and Volume Optimization of the Motor with an Integrated Filter Inductor

et al. 2021

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“…Integration of power electronic components [64][65][66] within the electric machine is being actively researched. Integration of passive components such as inductors has been explored in [67][68][69][70]. Integration of electric machine rotor with the impeller of fan [71] and propeller [72] are also investigated.…”

Section: Integration Of Torque Limitermentioning

confidence: 99%

Torque Limiters for Aerospace Actuator Application

et al. 2022

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Safety and reliability of electrical actuators are essential for success of all electric and more electric aircrafts (MEA). Torque limiters improve the reliability of electromechanical actuators (EMA) by restricting the amount of force experienced by the actuator drive train components. If transmitted torque in the shaft exceeds a limit, it gives way in a controlled manner. This protects the actuator from potential failure and jamming. In this paper, different types of existing torque limiters are investigated for their suitability in aerospace EMA application and further integration within the electric motor. They classified based on the torque transmission mechanism and each type is described in detail. Operating principle and basic characteristics are reported. Comparative evaluation of commercially available devices is presented. It is found that those based on friction based and permanent magnet are most suitable due to their good torque density, reliability and high speed capability. Further, based on the characteristics, integration of torque limiter within the actuator motor is investigated in this paper. An example actuator motor is considered for integration. Different integration options suitable for the different types of torque limiting devices are described. Reduction in overall volume is shown for the integration options. Such integration can lead to improved reliability as well as higher power density resulting in next-generation actuator electrical drives for MEA.

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“…This increases the stator winding loss, thereby generating heat inside the inductor's windings that is taken out of the starter-generator by the existing cooling system, where the inductor's stator is flooded with the engine oil. In [27], a thermal design investigation of an integrated inductor system and a combined starter-generator is presented where complete integration is achieved from thermal and physical points of view.…”

Section: Casingmentioning

confidence: 99%

Review on the Traditional and Integrated Passives: State-of-the-Art Design and Technologies

et al. 2021

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With the increased necessity of a high power density and efficient system in aerospace and marine industries, integrated motor drives provide an excellent solution in the modern era. Therefore, a close structural and functional integration of passive components has become a prerequisite task to make a compact overall system. This article reviews the existing motor drives system with integrated passive technologies. To start, the design aspect of the traditional and integrated filter inductors, using the area product approach, is discussed. Subsequently, layouts of traditional and integrated inductors are presented. The available capacitor technologies, suitable for integration, are also discussed with pros and cons of each capacitor type.

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Thermal Design of an Integrated Inductor for 45kW Aerospace Starter-Generator

Cited by 3 publications

References 11 publications

Integrated Motor Drive: Mass and Volume Optimization of the Motor with an Integrated Filter Inductor

Integrated Motor Drive: Mass and Volume Optimization of the Motor with an Integrated Filter Inductor

Torque Limiters for Aerospace Actuator Application

Review on the Traditional and Integrated Passives: State-of-the-Art Design and Technologies

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