Abstract
Repetitive control systems and learning control systems using filters composed of delay circuits and having parameters resulting in a very high loop gain for only specific frequencies. The result of this is a substantial reduction of periodic disturbances with frequencies corresponding to the specific frequencies. The parameters of the filters are selected such that the robustness for frequency-variations in the periodic disturbances is improved.
Also published as:
WO 9613898 (A1)
JP H10508130 (A)
EP 0774176 (A1)
EP 0774176 (B1)
DE 69524768 (T2)
Original language | English |
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Patent number | US 5740090 (A) |
Publication status | Published - 14 Apr 1998 |