Fault-tolerant electrical machine design within a rotorcraft actuation drive system optimisation

M. Rottach, C. Gerada, T. Hamiti, P. W. Wheeler

Research output: Chapter in Book/Conference proceedingConference contributionpeer-review

12 Citations (Scopus)

Abstract

This paper presents an approach to weight-optimise an electromechanical actuator (EMA) for helicopter primary flight control systems. Special focus is put on the fault-tolerant electrical machine as a major component in the system. The novelty consists of the detailed machine optimisation in conjunction with the main actuator components: gearbox, screw, converter and filters. An exemplary EMA concept for a primary flight control system for medium weight helicopters is presented and the implications on the fault-tolerance requirements of actuator and electrical machine are elaborated. A deterministic optimisation strategy is presented alongside with models for the main actuator components. A dynamic Reluctance Network (RelNW) and a Thermal Network (ThermNW) are combined to represent the behaviour of the electrical machine. The paper will show the importance of low inertia design and machine operation in magnetic saturation due to high peak-to-rated torque ratio and acceleration requirements.

Original languageEnglish
Title of host publication6th IET International Conference on Power Electronics, Machines and Drives, PEMD 2012
PagesB11
Edition592 CP
DOIs
Publication statusPublished - 2012
Externally publishedYes
Event6th IET International Conference on Power Electronics, Machines and Drives, PEMD 2012 - Bristol, United Kingdom
Duration: 27 Mar 201229 Mar 2012

Publication series

NameIET Conference Publications
Number592 CP
Volume2012

Conference

Conference6th IET International Conference on Power Electronics, Machines and Drives, PEMD 2012
Country/TerritoryUnited Kingdom
CityBristol
Period27/03/1229/03/12

Keywords

  • Aerospace EMA
  • Dynamic Reluctance Network
  • Global optimisation
  • Rotorcraft actuation
  • Thermal Network

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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