Electrical model of carbon fibre reinforced polymers for the development of electrical protection systems for more-electric aircraft

C. E. Jones, P. J. Norman, S. J. Galloway, G. M. Burt, L. F. Kawashita, M. I. Jones, S. R. Hallett

Research output: Contribution to conferencePaper

Abstract

Carbon fibre reinforced polymers (CFRP) are increasingly used for structures on aircraft due to their superior mechanical properties compared to traditional materials, such as aluminium. Additionally, in order to improve aircraft performance, there is a continued trend for electrically driven loads on aircraft, increasing the on-board electrical power generation capacity and complexity of the electrical power system, including a desire to increase voltage levels and move towards DC distribution systems.
Central to the reliable operation of an electrical power system is the development of an appropriate protection and fault management strategy. If an electrical earth fault occurs on a composite more-electric aircraft then the CFRP may form part of the route to ground. In order to develop an appropriate protection system and thus to understand the effects on engine generators it is necessary to investigate the fault response of this network. Hence a suitable electrical model of the CFRP material is required, which will enable CFRP to be included in a computationally-intensive systems-level simulation study of a more-electric aircraft (MEA) with fully switching power electronic converter models.
This paper presents an experimentally validated impedance model of CFRP at an appropriate level of fidelity for use in systems level simulation platforms, enabling appropriate protection methods to be developed. The validated model considers the impact of the electrical bonding to ground, including the impedance added by a metallic frame that a CFRP panel may be mounted in. The simplicity of the model results in a less complex process to determine the expected impedance of the CFRP material, enabling a focus on the fault response of the system and subsequent development of appropriate protection solutions.

Conference

Conference18th European Conference on Power Electronics and Applications
Abbreviated titleEPE '16
CountryGermany
CityKarlsruhe
Period5/09/169/09/16
Internet address

Fingerprint

Carbon fibers
Aircraft
Polymers
Power electronics
Power generation
Earth (planet)
Engines
Aluminum
Mechanical properties
Composite materials
Electric potential

Keywords

  • airplane
  • more-electric aircraft
  • fault handling strategy
  • fault ride-through
  • fault tolerance
  • electrical protection systems
  • carbon fibre reinforced polymers

Cite this

Jones, C. E., Norman, P. J., Galloway, S. J., Burt, G. M., Kawashita, L. F., Jones, M. I., & Hallett, S. R. (Accepted/In press). Electrical model of carbon fibre reinforced polymers for the development of electrical protection systems for more-electric aircraft. Paper presented at 18th European Conference on Power Electronics and Applications, Karlsruhe, Germany.
Jones, C. E. ; Norman, P. J. ; Galloway, S. J. ; Burt, G. M. ; Kawashita, L. F. ; Jones, M. I. ; Hallett, S. R. / Electrical model of carbon fibre reinforced polymers for the development of electrical protection systems for more-electric aircraft. Paper presented at 18th European Conference on Power Electronics and Applications, Karlsruhe, Germany.10 p.
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title = "Electrical model of carbon fibre reinforced polymers for the development of electrical protection systems for more-electric aircraft",
abstract = "Carbon fibre reinforced polymers (CFRP) are increasingly used for structures on aircraft due to their superior mechanical properties compared to traditional materials, such as aluminium. Additionally, in order to improve aircraft performance, there is a continued trend for electrically driven loads on aircraft, increasing the on-board electrical power generation capacity and complexity of the electrical power system, including a desire to increase voltage levels and move towards DC distribution systems.Central to the reliable operation of an electrical power system is the development of an appropriate protection and fault management strategy. If an electrical earth fault occurs on a composite more-electric aircraft then the CFRP may form part of the route to ground. In order to develop an appropriate protection system and thus to understand the effects on engine generators it is necessary to investigate the fault response of this network. Hence a suitable electrical model of the CFRP material is required, which will enable CFRP to be included in a computationally-intensive systems-level simulation study of a more-electric aircraft (MEA) with fully switching power electronic converter models.This paper presents an experimentally validated impedance model of CFRP at an appropriate level of fidelity for use in systems level simulation platforms, enabling appropriate protection methods to be developed. The validated model considers the impact of the electrical bonding to ground, including the impedance added by a metallic frame that a CFRP panel may be mounted in. The simplicity of the model results in a less complex process to determine the expected impedance of the CFRP material, enabling a focus on the fault response of the system and subsequent development of appropriate protection solutions.",
keywords = "airplane, more-electric aircraft, fault handling strategy, fault ride-through, fault tolerance, electrical protection systems, carbon fibre reinforced polymers",
author = "Jones, {C. E.} and Norman, {P. J.} and Galloway, {S. J.} and Burt, {G. M.} and Kawashita, {L. F.} and Jones, {M. I.} and Hallett, {S. R.}",
note = "{\circledC} 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.; 18th European Conference on Power Electronics and Applications, EPE '16 ; Conference date: 05-09-2016 Through 09-09-2016",
year = "2016",
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Jones, CE, Norman, PJ, Galloway, SJ, Burt, GM, Kawashita, LF, Jones, MI & Hallett, SR 2016, 'Electrical model of carbon fibre reinforced polymers for the development of electrical protection systems for more-electric aircraft' Paper presented at 18th European Conference on Power Electronics and Applications, Karlsruhe, Germany, 5/09/16 - 9/09/16, .

Electrical model of carbon fibre reinforced polymers for the development of electrical protection systems for more-electric aircraft. / Jones, C. E.; Norman, P. J.; Galloway, S. J.; Burt, G. M.; Kawashita, L. F.; Jones, M. I.; Hallett, S. R.

2016. Paper presented at 18th European Conference on Power Electronics and Applications, Karlsruhe, Germany.

Research output: Contribution to conferencePaper

TY - CONF

T1 - Electrical model of carbon fibre reinforced polymers for the development of electrical protection systems for more-electric aircraft

AU - Jones, C. E.

AU - Norman, P. J.

AU - Galloway, S. J.

AU - Burt, G. M.

AU - Kawashita, L. F.

AU - Jones, M. I.

AU - Hallett, S. R.

N1 - © 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

PY - 2016/7/19

Y1 - 2016/7/19

N2 - Carbon fibre reinforced polymers (CFRP) are increasingly used for structures on aircraft due to their superior mechanical properties compared to traditional materials, such as aluminium. Additionally, in order to improve aircraft performance, there is a continued trend for electrically driven loads on aircraft, increasing the on-board electrical power generation capacity and complexity of the electrical power system, including a desire to increase voltage levels and move towards DC distribution systems.Central to the reliable operation of an electrical power system is the development of an appropriate protection and fault management strategy. If an electrical earth fault occurs on a composite more-electric aircraft then the CFRP may form part of the route to ground. In order to develop an appropriate protection system and thus to understand the effects on engine generators it is necessary to investigate the fault response of this network. Hence a suitable electrical model of the CFRP material is required, which will enable CFRP to be included in a computationally-intensive systems-level simulation study of a more-electric aircraft (MEA) with fully switching power electronic converter models.This paper presents an experimentally validated impedance model of CFRP at an appropriate level of fidelity for use in systems level simulation platforms, enabling appropriate protection methods to be developed. The validated model considers the impact of the electrical bonding to ground, including the impedance added by a metallic frame that a CFRP panel may be mounted in. The simplicity of the model results in a less complex process to determine the expected impedance of the CFRP material, enabling a focus on the fault response of the system and subsequent development of appropriate protection solutions.

AB - Carbon fibre reinforced polymers (CFRP) are increasingly used for structures on aircraft due to their superior mechanical properties compared to traditional materials, such as aluminium. Additionally, in order to improve aircraft performance, there is a continued trend for electrically driven loads on aircraft, increasing the on-board electrical power generation capacity and complexity of the electrical power system, including a desire to increase voltage levels and move towards DC distribution systems.Central to the reliable operation of an electrical power system is the development of an appropriate protection and fault management strategy. If an electrical earth fault occurs on a composite more-electric aircraft then the CFRP may form part of the route to ground. In order to develop an appropriate protection system and thus to understand the effects on engine generators it is necessary to investigate the fault response of this network. Hence a suitable electrical model of the CFRP material is required, which will enable CFRP to be included in a computationally-intensive systems-level simulation study of a more-electric aircraft (MEA) with fully switching power electronic converter models.This paper presents an experimentally validated impedance model of CFRP at an appropriate level of fidelity for use in systems level simulation platforms, enabling appropriate protection methods to be developed. The validated model considers the impact of the electrical bonding to ground, including the impedance added by a metallic frame that a CFRP panel may be mounted in. The simplicity of the model results in a less complex process to determine the expected impedance of the CFRP material, enabling a focus on the fault response of the system and subsequent development of appropriate protection solutions.

KW - airplane

KW - more-electric aircraft

KW - fault handling strategy

KW - fault ride-through

KW - fault tolerance

KW - electrical protection systems

KW - carbon fibre reinforced polymers

UR - http://www.epe2016.com/

UR - http://ieeexplore.ieee.org/servlet/opac?punumber=1001483

M3 - Paper

ER -

Jones CE, Norman PJ, Galloway SJ, Burt GM, Kawashita LF, Jones MI et al. Electrical model of carbon fibre reinforced polymers for the development of electrical protection systems for more-electric aircraft. 2016. Paper presented at 18th European Conference on Power Electronics and Applications, Karlsruhe, Germany.