Apparatus for compensating for speed error of motor

Details Apparatus for compensating for speed error of motor Apparatus for compensating for speed error of motor

2006-09-05

2006-09-05

Leykin, Rita (Department: 2837)

Electricity: motive power systems

Plural diverse motor controls

Running-speed control

C318S270000, C318S271000, C318S272000, C318S255000, C318S059000

Reexamination Certificate

active

07102309

ABSTRACT:
The present invention discloses an apparatus for compensating for a speed error of a motor which can reduce a speed ripple of the motor resulting from load characteristics, and which also can reduce vibrations and noises. The apparatus for compensating for the speed error of the motor divides a rotational section corresponding to one complete revolution of a rotor of the motor into a plurality of preset rotational sections, determines a speed compensation value in each divided rotational section on the basis of a difference value between a reference speed and a previous estimated speed, and compensates for the speed error of the motor on the basis of the speed compensation value.

REFERENCES:
patent: 4736143 (1988-04-01), Nakamura et al.
patent: 4980617 (1990-12-01), Tajima et al.
patent: 5319297 (1994-06-01), Bahn
patent: 5430362 (1995-07-01), Carr et al.
patent: 6646409 (2003-11-01), Won et al.
patent: 6674262 (2004-01-01), Kitajima et al.
patent: 6735284 (2004-05-01), Cheong et al.
patent: 2003/0025475 (2003-02-01), Won et al.
patent: 1392664 (2003-01-01), None
patent: 8-126378 (1996-05-01), None
patent: 2002-016290 (2002-03-01), None
English language Abstract of Korea 2002-016290.
English language Abstract of JP 8-126378.

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