Stability Study of DC Electric Power System with Paralleled Generators for More-Electric Aircraft

Zheng, Xuemei; Gao, Fei; Bozhko, Serhiy

doi:10.4271/2014-01-2114

Cited by 9 publications

(6 citation statements)

References 14 publications

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“…Figure 10 shows the Bode plot of the open loop frequency response for the outer current loop. Combining Equations (2), (23), and (24), one can obtain the following relation:…”

Section: Outer DC Current Loopmentioning

confidence: 99%

“…Reference [22] presents a droop controlled twin high speed permanent magnet synchronous generators system in which appropriate power sharing between the two generators is achieved by adjusting the individual droop gain. Reference [23] proposed an improved voltage compensation method in a three source droop controlled MEA power system to effectively restore the main bus voltage. However, to the best knowledge of the authors, droop control has not been used in the bidirectional power flow control for MEA applications.…”

Section: Introductionmentioning

confidence: 99%

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A Droop Control Based Three Phase Bidirectional AC-DC Converter for More Electric Aircraft Applications

et al. 2017

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This paper addresses the design and implementation of a droop controlled three phase bidirectional AC-DC converter for more electric aircraft (MEA) applications. A unified control strategy using a droop characteristic is presented to achieve the bidirectional power flow between the AC and DC source while maintaining a stable DC output voltage. Based on the rigorous control design, the converter is capable of operating over a wide frequency range with a unity power factor. The key findings obtained from the theoretical analysis are confirmed by simulation studies and further validated by a scaled down laboratory prototype. The practical results show good performance of the bidirectional converter and demonstrate the effectiveness of the proposed control strategies.

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“…Figure 10 shows the Bode plot of the open loop frequency response for the outer current loop. Combining Equations (2), (23), and (24), one can obtain the following relation:…”

Section: Outer DC Current Loopmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Droop Control Based Three Phase Bidirectional AC-DC Converter for More Electric Aircraft Applications

et al. 2017

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“…To ensure appropriate current sharing between parallel modules, a droop characteristic that operates on individual modules is used. The control design process is discussed in detail in [25]. A full-order model based on this structure is developed below.…”

Section: System Configuration and Mathematical Modelmentioning

confidence: 99%

Modal Analysis of a PMSG-Based DC Electrical Power System in the More Electric Aircraft Using Eigenvalues Sensitivity

Gao

Zheng

Bozhko

et al. 2015

IEEE Trans. Transp. Electrific.

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(2015) Modal analysis of a PMSG-based DC electrical power system in the more electric aircraft using eigenvalues sensitivity. IEEE Transactions on Transportation Electrification, 1 (1). pp. 65-76. ISSN 2332-7782 Access from the University of Nottingham repository: http://eprints.nottingham.ac.uk/32744/1/Modal%20Analysis%20of%20a%20PMSG-Based %20DC%20Electrical%20Power%20System%20in%20the%20More%20Electric %20Aircraft.pdf Copyright and reuse:The Nottingham ePrints service makes this work by researchers of the University of Nottingham available open access under the following conditions. This article is made available under the University of Nottingham End User licence and may be reused according to the conditions of the licence. For more details see: http://eprints.nottingham.ac.uk/end_user_agreement.pdf A note on versions:The version presented here may differ from the published version or from the version of record. If you wish to cite this item you are advised to consult the publisher's version. Please see the repository url above for details on accessing the published version and note that access may require a subscription.For more information, please contact eprints@nottingham.ac.uk 1 Abstract-This paper deals with the modeling and small signal stability analysis of a DC-distribution electrical power system (EPS) sourced by a permanent magnet synchronous generator (PMSG). The topology employed here is one of the main candidates for future more-electric aircraft (MEA). A detailed mathematical model is developed and comprehensive EPS modal analysis is performed. Eigenvalue sensitivity and participation factor are utilized in order to assess the effect of machine and control parameters, as well as system operating conditions, on EPS stability. Furthermore, this paper also presents comparative analysis of system models with and without the inclusion of system cabling. This crucial analysis shows that the tendencies in stability behavior can be significantly different with and without cabling. It is therefore shown that system simplification, by removal of cabling, can deliver remarkably misleading results. Time domain simulations are carried out to support the theoretical analysis. The comprehensive analysis presented in this paper provides EPS designers with an extremely useful methodology for the selection of appropriate EPS parameters at the early design stages.Index Terms-Modal analysis, stability, eigenvalue sensitivity, more electric aircraft, DC power distribution.

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“…As a result of the increased electric power, a higher DC bus voltage level is required to reduce the current of feeders, which affects the weight of EWIS cables and power loss of the aircraft. Several papers have discussed the stability [4], control strategy [5], and power management [6] of 270 VDC EPS. Besides, some papers study the current sharing method of multiple paralleling DC sources [7].…”

Section: Introductionmentioning

confidence: 99%

Behavioural modelling and power quality simulation of a HVDC electric power system for MEA

Wang

Yannian

Kang

2018

J. eng.

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Stability Study of DC Electric Power System with Paralleled Generators for More-Electric Aircraft

Cited by 9 publications

References 14 publications

A Droop Control Based Three Phase Bidirectional AC-DC Converter for More Electric Aircraft Applications

A Droop Control Based Three Phase Bidirectional AC-DC Converter for More Electric Aircraft Applications

Modal Analysis of a PMSG-Based DC Electrical Power System in the More Electric Aircraft Using Eigenvalues Sensitivity

Behavioural modelling and power quality simulation of a HVDC electric power system for MEA

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