Future electrical loads and increasing load trends will eventually exceed generating capacities of existing Electrical Power Systems (EPS) designs in fast jet aircraft. Space constraints, weight constraints and aerodynamic implications means simply up scaling generator size is impractical. The future addition of avionics, pilot interfaces, sensor system upgrades such as radar and the shift to the More Electric Aircraft (MEA) will contribute to the inevitable rise. This situation drives the need to increase existing electrical efficiencies or improve the design of the EPS. This paper looks into the efficiency issues from the perspective of on board power quality in conjunction with harmonics. The context of investigation is; existing fast jet EPS that utilise constant frequency AC primary electrical power achieved through constant speed drive. A literature review and modelling of nonlinear loads of such aircraft EPS allow understanding and aid investigation.
|Title of host publication||Proceedings of the 44th International Universities Power Engineering Conference (UPEC), 2009|
|Place of Publication||New York|
|Number of pages||5|
|Publication status||Published - 2009|
|Event||44th International Universities Power Engineerting Conference - Glasgow, United Kingdom|
Duration: 1 Sep 2009 → 4 Sep 2009
|Conference||44th International Universities Power Engineerting Conference|
|Period||1/09/09 → 4/09/09|
- constant frequency
- current injection
- nonlinear loads
- fast jet
- power quality
Fong, K., Galloway, S., Harrington, I., & Burt, G. (2009). Aircraft electrical systems - coping with harmonics for changing power demands. In Proceedings of the 44th International Universities Power Engineering Conference (UPEC), 2009 (pp. 883-887). New York: IEEE.