A microprocessor-controlled speed regulator with instantaneousspeed estimation for motor drives
Saito, K.; Kamiyama, K.; Ohmae, T.; Matsuda, T.
Industrial Electronics, IEEE Transactions on
Volume 35, Issue 1, Feb 1988 Page(s):95 - 99
Digital Object Identifier 10.1109/41.3068
Summary:A method for estimating instantaneous speed, suited for a
microprocessor-based speed regulator for motor drives, and the
characteristics of the speed control system are described. Features of
the proposed method include the estimation of instantaneous speed at a
real-time point using values of average speed detected by counting for a
certain time the output pulses of an encoder as well as the estimated
value as the speed feedback signal for the speed regulator. Since this
method allows compensation to be made for the lag time of the feedback
signal caused by detection of the mean value, it contributes to improved
stability of the speed regulator. In particular, this provides a
significant suppression of the vibrations that are generated in
motor-driven machinery
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