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All-electric aircraft is a high priority goal in the avionics community. Both increased reliability and efficiency are the promised implications of this move. But, thermal management has become a significant issue that must be resolved before reaching this goal. Advanced analysis technologies such as finite element method and intelligent control systems such as field oriented control are being used to better understand the source of the heat and to eliminate as much of it as possible. This paper addresses the motivation behind allelectric aircraft and gives an overview of some of the considerations in cooling, simulation and modeling, and control, with an example of one control scheme which is being developed.= maximum allowable current change rate

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Interleaved power converter topologies have received increasing attention in recent years for high performance applications. In this paper, a comprehensive multi-mode performance analysis is presented for interleaved boost converters operating over the entire duty ratio range (0 ≤ switch duty ratio ≤ 1) under the continuous conduction mode (CCM) and two discontinuous conduction modes (DCMs). With inductor coupling factor and converter loading as parameters, key performance indicators such as the dc voltage gain, input ripple current, inductor ripple current, and output ripple voltage are presented in a normalized form to aid the converter design process. Transitions among the CCM and two DCM modes are clearly defined for the entire switch duty ratio range.Advantages of DCM operation such as reduced switching loss at the expense of undesired ringing are discussed. The comprehensive multi-mode analysis has been experimentally verified using a 250 W, 70 kHz prototype converter unit.