Electricity: motive power systems – Positional servo systems – Digital or numerical systems
Patent
1996-04-09
1998-03-03
Masih, Karen
Electricity: motive power systems
Positional servo systems
Digital or numerical systems
318432, 318609, 318610, 388802, G05B 1929
Patent
active
057239657
ABSTRACT:
A velocity control method for use in a servo motor having a disturbance eliminator is described. The velocity control method includes the steps of calculating a control torque input value based on a desired target velocity input value and an output velocity value of an actual mechanical model, adding a disturbance torque value to the control torque input value to input the added result to the mechanical model, inputting the control torque input value to a virtual model to calculate an estimation velocity according to the control torque input value, calculating a corrected torque based on a velocity value difference between the output velocity value of the mechanical model and the estimation velocity value of the virtual model, and reflecting the corrected torque on the control torque input value. Accordingly, although unknown disturbances are input to the control system, a velocity error can be conversed into zero as closely as possible to enable an accurate velocity control.
REFERENCES:
patent: 5101145 (1992-03-01), Rehm
patent: 5138564 (1992-08-01), DeJong et al.
patent: 5310143 (1994-05-01), Yocum et al.
patent: 5400033 (1995-03-01), Hablani
Masih Karen
Samsung Electronics Co,. Ltd.
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