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DC-bus power quality for aircraft power systems during generator fault conditions

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2 Author(s)
R. Todd ; School of Electrical and Electronic Engineering, The University of Manchester, Manchester, UK ; A. J. Forsyth

Higher-voltage, 540 V, aircraft DC-bus power quality is examined experimentally and by computer simulation during a short-circuit fault across the phase terminals of a 70 kW, five-phase, permanent magnet fault-tolerant generator. The DC-bus transients caused by the short-circuiting of the generator phases are seen to exceed the limits in MIL-STD-704F and a control algorithm is proposed for a supercapacitor-based energy storage device that mitigates the transients. The controller performance is illustrated by computer simulations for a range of bus switching scenarios.

Published in:

IET Electrical Systems in Transportation  (Volume:1 ,  Issue: 3 )