Title:
SERVO CONTROLLER
Document Type and Number:
WIPO Patent Application WO/2007/138758
Kind Code:
A1
Abstract:
A servo controller realizing robust speed control of high performance by avoiding
adverse influence such as of disturbance or load fluctuation. The servo controller
comprises a disturbance observer (5) which adds a disturbance compensation
torque Tf determined from the torque command T* and the rotational
speed ωm of the motor to a basis signal T0* of the torque
command determined by a PI control section (2) according to the difference between
the speed command ω* and to the feedback speed ωf and outputs
the torque command T*, and a phase advance compensation observer (6) which creates
an output of a nominal plant (61) of an element with no lag from the basic signal
T0* of the torque command and the rotational speed ωm
of the motor and outputs the outputs as the feedback speed ωf.
Inventors:
ZHANG WENNONG
SAWAMURA MITSUJIRO
TAKEI YASUYUKI
SAWAMURA MITSUJIRO
TAKEI YASUYUKI
Application Number:
PCT/JP2007/051010
Publication Date:
December 06, 2007
Filing Date:
January 23, 2007
Export Citation:
Assignee:
YASKAWA DENKI SEISAKUSHO KK (JP)
ZHANG WENNONG
SAWAMURA MITSUJIRO
TAKEI YASUYUKI
ZHANG WENNONG
SAWAMURA MITSUJIRO
TAKEI YASUYUKI
International Classes:
H02P29/00; G05B11/36; G05B13/02
Domestic Patent References:
| WO2005093939A1 | 2005-10-06 |
Foreign References:
| JP2003033066A | 2003-01-31 |
Other References:
YAMADA K. ET AL.: "Gairan Observer no Kojisuka to Robust Anteisei ni Kansuru Kosatsu", THE TRANSACTIONS OF THE INSTITUTE OF ELECTRICAL ENGINEERS OF JAPAN C, vol. 117-C, no. 12, 1997, pages 1776 - 1781, XP003019291
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