Steady‐state performance evaluations of three‐phase brushless asynchronous excitation system for aircraft starter/generator

Zhang, Zan; Liu, Weiguo; Zhao, Dongdong; Mao, Shuai; Meng, Tao; Jiao, Ningfei

doi:10.1049/iet-epa.2016.0077

Cited by 36 publications

(21 citation statements)

References 27 publications

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“…A multitude of machine technologies have been suggested for high-power machines or S/G applications [32], [67], including 1) wound-field synchronous machines (WFSMs) [21], [68], 2) permanent magnet machines (PMMs) [69], [70], 3) induction machines (IMs) [71]- [73], and 4) reluctance machines (RMs) [74]- [77]. regarding the electrical machine families are the focus for Sections IV and V. Since IMs, PMMs and RMs demands active PEC at the stator-side, all of them will automatically include S/G functionality, they will be treated as an S/G hereafter.…”

Section: ) Electrical Machine Families For S/gsmentioning

confidence: 99%

High-Power Machines and Starter-Generator Topologies for More Electric Aircraft: A Technology Outlook

et al. 2020

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More electric aircraft (MEA) architectures consist of several subsystems, which must all comply with the settled safety requirements of aerospace applications. Thus, achieving reliability and fault-tolerance represents the main cornerstone when classifying different solutions. Hybrid electric aircraft (HEA) extends the MEA concept by electrifying the propulsive power as well as the auxiliary power, and thereby pushing the limits of electrification. This paper gives an overview of the high-power electrical machine families and their associated power electronic converter (PEC) interfaces that are currently competing for aircraft power conversion systems. Various functionalities and starter-generator (S/G) solutions are also covered. In order to highlight the latest advancements, the efficiency of the world's most powerful aerospace generator (Mark 1) developed within the E-Fan X HEA project is graphically represented and assessed against other rivaling solutions. Motivated by the strict requirements on efficiency, power density, trustworthiness, as well as starting functionalities, supplementary considerations on the system-level design are paramount. In order to highlight the MEA goals and take advantage of all potential benefits, all subsystems must be treated as a whole. It is then shown that the combination of PECs, aircraft grid and electrical machines can be better adapted to benefit the overall system. This survey outlines the influence of these concerns and offers a view of the future technology outlook, as well as covering the present challenges and opportunities.

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Section: ) Electrical Machine Families For S/gsmentioning

confidence: 99%

High-Power Machines and Starter-Generator Topologies for More Electric Aircraft: A Technology Outlook

et al. 2020

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“…Several machine technologies have been proposed for S/G applications [7], [20], including permanent magnet machines (PMMs) [21], [22], induction machines (IMs) [23]- [25], switched reluctance machines (SRMs) [26]- [29] and brushless wound-field synchronous machines (WFSMs) [30]. Fig.…”

Section: B Basic Principles Of Starter-generators (S/gs)mentioning

confidence: 99%

“…• DC excitation demands a peculiar inverter with 12 IGBTs; [30] • The AE is a standard wound-rotor IM;…”

Section: Three-phase Brushless Aementioning

confidence: 99%

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Electrical Machines and Power Electronics For Starter-Generators in More Electric Aircrafts: A Technology Review

Nøland

Leandro

Suul

et al. 2019

IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society

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Safety-critical power conversion systems play a major role in the paradigm shift towards more electric aircraft (MEA) architectures. This paper reviews the electrical machines and their power electronic systems that are currently competing in the application of integrated starter-generators (S/Gs) in MEA power systems. Motivated by the strict requirements of sufficient electrical starting capability, super-high power density and ultra-high reliability, additional considerations on the overall system design are necessary, including the power electronic converters (PECs) and integrated thermal designs. These aspects are discussed not only in the light of their many benefits but also of the challenges introduced by the continuous advancements and emerging innovations in the power conversion technology. In achieving the MEA goals and capitalize on all potential benefits, optimization-based design approaches will be necessary, where the aggregation of electric machines, PECs and the aircraft grid is considered as an integrated system to be optimized. This review highlights the importance of these aspects and offers a view on future perspectives and open issues. Index Terms-Aircraft power generation, more-electric aircraft (MEA), starter-generator (S/G).

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“…Thus, the required output power of the onboard generator, which is the power source in aircraft, has increased accordingly [ 3 , 4 ]. In order to obtain a relatively small compensatory loss of the generator in aircraft, generators with small volume but high power density, such as brushless synchronous generator (BLSG), are widely deployed in modern aircraft [ 5 ]. However, a high power density inevitably leads to a high power loss that is converted to waste heat, resulting in huge heat dissipation requirement.…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation on the Thermal Performance of Nanofluid-Based Cooling System for Synchronous Generators

Xiong

et al. 2019

Entropy

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This paper presents a nanofluid-based cooling method for a brushless synchronous generator (BLSG) by using Al2O3 lubricating oil. In order to demonstrate the superiority of the nanofluid-based cooling method, analysis of the thermal performance and efficiency of the nanofluid-based cooling system (NBCS) for the BLSG is conducted along with the modeling and simulation cases arranged for NBCS. Compared with the results obtained under the base fluid cooling condition, results show that the nanofluid-based cooling method can reduce the steady-state temperature and power losses in BLSG and decrease the temperature settling time and changing ratio, which demonstrate that both steady-state and transient thermal performance of NBCS are improved as nanoparticle volume fraction (NVF) in nanofluid increases. Besides, although the input power of cycling pumps in NBCS has ~30% increase when the NVF is 10%, the efficiency of the NBCS has a slight increase because the 4.1% reduction in power loss of BLSG is bigger than the total incensement of input power of the cycling pumps. The results illustrate the superiority of the nanofluid-based cooling method, and it indicates that the proposed method has a broad application prospect in the field of thermal control of onboard synchronous generators with high power density.

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Steady‐state performance evaluations of three‐phase brushless asynchronous excitation system for aircraft starter/generator

Cited by 36 publications

References 27 publications

High-Power Machines and Starter-Generator Topologies for More Electric Aircraft: A Technology Outlook

High-Power Machines and Starter-Generator Topologies for More Electric Aircraft: A Technology Outlook

Electrical Machines and Power Electronics For Starter-Generators in More Electric Aircrafts: A Technology Review

Numerical Investigation on the Thermal Performance of Nanofluid-Based Cooling System for Synchronous Generators

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