Abstract
For on-line identification of the current and position stiffnesses in an active magnetic bearing (AMB) system equipped with four pairs of built-in radial magnetic force transducers, a modified least-mean-squares (LMS) algorithm is proposed. The algorithm, which is based on a simple linearised magnetic force equation, utilizes three kinds of measured signals, i.e. rotor displacement, control current and magnetic force. The simulation and experimental results show that the proposed algorithm is very simple and effective in adaptively identifying the current and position stiffnesses of the AMB.
| Original language | English |
|---|---|
| Pages (from-to) | 681-690 |
| Number of pages | 10 |
| Journal | Mechanical Systems and Signal Processing |
| Volume | 13 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 1999 Jan 1 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Control and Systems Engineering
- Signal Processing
- Civil and Structural Engineering
- Aerospace Engineering
- Mechanical Engineering
- Computer Science Applications
Cite this
On-line identification of current and position stiffnesses by LMS algorithm in active magnetic bearing system equipped with force transducers. / Kim, Seung-Jong; Lee, Chong Won.
In: Mechanical Systems and Signal Processing, Vol. 13, No. 5, 01.01.1999, p. 681-690.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - On-line identification of current and position stiffnesses by LMS algorithm in active magnetic bearing system equipped with force transducers
AU - Kim, Seung-Jong
AU - Lee, Chong Won
PY - 1999/1/1
Y1 - 1999/1/1
N2 - For on-line identification of the current and position stiffnesses in an active magnetic bearing (AMB) system equipped with four pairs of built-in radial magnetic force transducers, a modified least-mean-squares (LMS) algorithm is proposed. The algorithm, which is based on a simple linearised magnetic force equation, utilizes three kinds of measured signals, i.e. rotor displacement, control current and magnetic force. The simulation and experimental results show that the proposed algorithm is very simple and effective in adaptively identifying the current and position stiffnesses of the AMB.
AB - For on-line identification of the current and position stiffnesses in an active magnetic bearing (AMB) system equipped with four pairs of built-in radial magnetic force transducers, a modified least-mean-squares (LMS) algorithm is proposed. The algorithm, which is based on a simple linearised magnetic force equation, utilizes three kinds of measured signals, i.e. rotor displacement, control current and magnetic force. The simulation and experimental results show that the proposed algorithm is very simple and effective in adaptively identifying the current and position stiffnesses of the AMB.
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UR - http://www.scopus.com/inward/citedby.url?scp=0033333761&partnerID=8YFLogxK
U2 - 10.1006/mssp.1999.1219
DO - 10.1006/mssp.1999.1219
M3 - Article
VL - 13
SP - 681
EP - 690
JO - Mechanical Systems and Signal Processing
JF - Mechanical Systems and Signal Processing
SN - 0888-3270
IS - 5
ER -