Abstract
This paper proposes a control method that attenuates adverse effects due to cogging torque on the vibratory system. A conventional controller utilizes a disturbance observer to estimate the cogging torque; however, the observer usesa filter that causes an estimation delay. If the cut off frequency is high enough, the delay may be negligible, but the estimated disturbance (cogging torque) will be contaminated with vibration. Instead, the proposed method uses a filter with a low cut off frequency; the estimation delay is compensated for by the leading angle, then it is used to attenuate the disturbance in the next rotational duration. The experimental results showed that the proposed method was clearly superior: the RMS magnitudes of the velocity control error were drastically reduced.
| Original language | English |
|---|---|
| Pages (from-to) | 284-292 |
| Number of pages | 9 |
| Journal | IEEJ Transactions on Industry Applications |
| Volume | 134 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2014 |
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Keywords
- Cogging torque
- Disturbance observer
- Feed forward control
- Harmonic magnetic gear
- Periodic disturbance
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Industrial and Manufacturing Engineering
Cite this
Cyclic disturbance suppression control for harmonic magnetic gear. / Uchimura, Yutaka; Saito, Yasushi.
In: IEEJ Transactions on Industry Applications, Vol. 134, No. 3, 2014, p. 284-292.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Cyclic disturbance suppression control for harmonic magnetic gear
AU - Uchimura, Yutaka
AU - Saito, Yasushi
PY - 2014
Y1 - 2014
N2 - This paper proposes a control method that attenuates adverse effects due to cogging torque on the vibratory system. A conventional controller utilizes a disturbance observer to estimate the cogging torque; however, the observer usesa filter that causes an estimation delay. If the cut off frequency is high enough, the delay may be negligible, but the estimated disturbance (cogging torque) will be contaminated with vibration. Instead, the proposed method uses a filter with a low cut off frequency; the estimation delay is compensated for by the leading angle, then it is used to attenuate the disturbance in the next rotational duration. The experimental results showed that the proposed method was clearly superior: the RMS magnitudes of the velocity control error were drastically reduced.
AB - This paper proposes a control method that attenuates adverse effects due to cogging torque on the vibratory system. A conventional controller utilizes a disturbance observer to estimate the cogging torque; however, the observer usesa filter that causes an estimation delay. If the cut off frequency is high enough, the delay may be negligible, but the estimated disturbance (cogging torque) will be contaminated with vibration. Instead, the proposed method uses a filter with a low cut off frequency; the estimation delay is compensated for by the leading angle, then it is used to attenuate the disturbance in the next rotational duration. The experimental results showed that the proposed method was clearly superior: the RMS magnitudes of the velocity control error were drastically reduced.
KW - Cogging torque
KW - Disturbance observer
KW - Feed forward control
KW - Harmonic magnetic gear
KW - Periodic disturbance
UR - http://www.scopus.com/inward/record.url?scp=84897747472&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84897747472&partnerID=8YFLogxK
U2 - 10.1541/ieejias.134.284
DO - 10.1541/ieejias.134.284
M3 - Article
AN - SCOPUS:84897747472
VL - 134
SP - 284
EP - 292
JO - IEEJ Transactions on Industry Applications
JF - IEEJ Transactions on Industry Applications
SN - 0913-6339
IS - 3
ER -