scholarly journals Proposal and Development of a High Voltage Variable Frequency Alternating Current Power System for Hybrid Electric Aircraft

2016 ◽  
Author(s):  
David J. Sadey ◽  
Linda Taylor ◽  
Raymond Beach
Keyword(s):  
Power System ◽  
High Voltage ◽  
Alternating Current ◽  
Variable Frequency ◽  
Electric Aircraft ◽  
Hybrid Electric

scholarly journals Modeling and Simulation of Variable Speed Variable Frequency Electrical Power System in More Electric Aircraft

2017 ◽  
Vol 11 (1) ◽  
pp. 87-98 ◽  
Author(s):  
Kelu Xu ◽  
Ning Xie ◽  
Chengmin Wang ◽  
Xudong Shi
Keyword(s):  
Power System ◽  
Power Supply ◽  
Electrical Power ◽  
Power Source ◽  
Variable Frequency ◽  
Change Strategies ◽  
Variable Speed ◽  
Electrical Power System ◽  
Electric Aircraft ◽  
More Electric Aircraft

The More Electric Aircraft (MEA), Variable Speed Variable Frequency (VSVF) and Electrical Power System (EPS) has lager generating capacity and higher energy efficiency than the conventional Constant Speed Constant Frequency EPS, but the generators of MEA have to working as redundant power supplies to improve the power supply reliability, instead of parallel power supply. To study the steady state operation and power source change strategies under different fault conditions of VSVF EPS, the integrated structure of VSVF EPS is firstly illustrated and operating principles of components are theorized. The key components including variable frequency generators, Bus Power Control Unit, rectifiers and other supplementary elements are then simulated to build a comprehensive VSVF EPS model on the platform of Simulink and the power source change strategies are realized by logic units. Finally, the stability analysis in terms of normal operation is carried out in case studies and power source exchange strategies in different situations are summarized. The results show that the model proposed by the paper can be used to simulate MEA VSVF EPS and analyze its whole operational process effectively and efficiently.

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