Title :
Research on a high energy utilization efficiency electromagnetic aircraft launcher with an ultracapacitor bank
Author :
Zhao, Hongtao ; Wu, Jun
Author_Institution :
Coll. of Mechatron. & Autom., Nat. Univ. of Defense Technol., Changsha
Abstract :
Energy utilization efficiency (EUE) is low when an ultracapacitor bank directly supplies power for an electromagnetic aircraft launcher (EMAL). To solve this problem, a boost converter is added between the ultracapacitor bank and the linear acceleration motor of the EMAL. The difference between the terminal voltage of the ultracapacitor bank and the peak back electromotive force of the linear motor is used to control the boost converter. System modeling and parametric design are presented. Simulation results show the ultracapacitor bank can discharge fast over a wide terminal voltage range and EUE is improved remarkably.
Keywords :
aircraft power systems; electric potential; linear motors; power convertors; supercapacitors; back electromotive force; boost converter; electromagnetic aircraft launcher; energy utilization efficiency; linear acceleration motor; parametric design; system modeling; ultracapacitor bank; Acceleration; Aircraft; Educational institutions; Electromagnetic launching; Energy storage; Permanent magnet motors; Power system modeling; Supercapacitors; Unmanned aerial vehicles; Voltage;
Conference_Titel :
Electrical Machines and Systems, 2008. ICEMS 2008. International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-3826-6
Electronic_ISBN :
978-7-5062-9221-4
