A4 Conference proceedings

Pseudo random binary signal for MIMO frequency response identification of a magnetically levitated rotor system

Open Access publication

Publication Details
Authors: Nevaranta Niko, Vuojolainen Jouni, Sillanpää Teemu, Pyrhönen Olli
Publisher: IOP Publishing: Conference Series
Publication year: 2019
Language: English
Related Journal or Series Information: IOP Conference Series: Materials Science and Engineering
Title of parent publication: HSTED-2019 "International Scientific Conference on High Speed Turbo machines and Electrical Drives
Volume number: 643
Issue number: 1
ISSN: 1757-8981
eISSN: 1757-899X
JUFO-Level of this publication: 1
Open Access: Open Access publication


High-speed machine technology with magnetically levitated rotor systems has become interesting solution in modern compressor, pump and turbo applications. Often, the commissioning of such machines is system identification-based with injected artificially generated excitation. In this paper a statistically uncorrelated PRBS design is proposed for multi-input multi-output MIMO system that gives the possibility to utilize same PRBS signal for all inputs. The proposed routine is validated with an experimental high-speed generator with active magnetic bearings (AMBs). The obtained frequency responses are validated by comparing the results with the mathematical model.

HERGE (01/01/2014 - 31/12/2015)
Herge proof of consept (15/09/2018 - 30/04/2019)

Last updated on 2020-20-03 at 10:03