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The study on electromagnetic compatibility of DC electric motor in HAPS

journal contribution
posted on 2005-10-01, 00:00 authored by J Geng, R Jin, Y Fan, B Liu, J Li, Y Cheng, Z Wang
The electromagnetic compatibility (EMC) problem of high altitude platform systems (HAPS) is investigated in this paper. A physical model for electromagnetic interferences (EMI) of electromagnetic radiation of spark discharge in DC electric motor is proposed. Based on this model, EMI frequency points has been estimated by approximative equation for the given structure and size of a motor, and EMI frequency points, peak values that received by the ports of antennas and far-field pattern have been calculated. The estimated results are consistent with the calculated ones. These frequency bands and spatial directions with max EMI should be avoided in the valid information when the HAPS system is being designed. Two methods are taken to shield electromagnetic radiation, either to mount a metal plate near the DC electric motor (EMI source), or to mount a perfect conductor board near the antenna array (sensitive element), are valid to shield electromagnetic radiation, but to mount a metal plate near the EMI source is more effective.

History

Journal

Aerospace science and technology

Volume

9

Issue

7

Pagination

617 - 625

Publisher

Elsevier

Location

Amsterdam, The Netherlands

ISSN

1270-9638

Language

eng

Publication classification

C1.1 Refereed article in a scholarly journal

Copyright notice

2005, Elsevier SAS

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