Motor control device

Details Motor control device Motor control device

2007-02-27

2007-02-27

Masih, Karen (Department: 2837)

Electricity: motive power systems

Positional servo systems

Frequency- or phase-modulated systems

C318S632000, C318S609000, C318S432000, C318S629000, C318S638000, C318S615000

Reexamination Certificate

active

10511908

ABSTRACT:
A speed control means7for outputting a drive command signal for a motor1to make the speed of the motor1conform to the speed command signal based on a signal indicating the difference between the speed command signal and the detected speed of the motor; a filter13inserted in series with the speed control means7in the speed control loop, having a high frequency domain, a low frequency domain, and an intermediate frequency domain between the high frequency domain and the low frequency domain, a gain KL in the low frequency domain being larger than a gain KH in the high frequency domain, and having a phase lag characteristic so that the phase in the intermediate frequency domain is delayed; the speed control means7having a proportional controller9that multiplies input by a proportional gain KP and outputs the result, and the filter13being set so that phase lag occurs between a resonance frequency and an anti-resonance frequency of a mechanical system.

REFERENCES:
patent: 5767609 (1998-06-01), Suganuma
patent: 2003/0184251 (2003-10-01), Oyama et al.
patent: 2000-322105 (2000-11-01), None
patent: 2001-333588 (2001-11-01), None
patent: 2003-271246 (2003-09-01), None

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