Counteracting the Aging Process of the Aircraft’s DC Power Grid in the Context of Shaping the Characteristics of the Power Source

Tomasz Tokarski (), Sławomir Michalak and Tomasz Gajewski
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Tomasz Tokarski: Air Force Institute of Technology, ul. Księcia Bolesława 6, skryt. poczt. 96, 01-494 Warszawa, Poland
Sławomir Michalak: Air Force Institute of Technology, ul. Księcia Bolesława 6, skryt. poczt. 96, 01-494 Warszawa, Poland
Tomasz Gajewski: Air Force Institute of Technology, ul. Księcia Bolesława 6, skryt. poczt. 96, 01-494 Warszawa, Poland

Energies, 2025, vol. 18, issue 19, 1-29

Abstract: This article presents a proprietary method for measuring and adjusting the position of DC generator brushes relative to the neutral zone. This method enables shaping the characteristics of the power sources of the aircraft’s DC power grids, which has a beneficial effect on counteracting the aging process. Using generators with varying operating times (flight hours), selected research results on the effect of the brush position angle α relative to the magnetically neutral zone on operating conditions are presented. In addition, examples of abnormal operation of the DC electrical network in transient states and their possible negative effects on the operation of the aircraft (A/C) power network are presented. Finally, research results are presented demonstrating the practical application of power source characteristic shaping to effectively counteract the aging process of aircraft DC power networks.

Keywords: DC generators; power quality; transients; aircraft; aging; neutral zone in generator; operational (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2025
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