H - Electricity – 02 – P
Patent
H - Electricity
02
P
318/93
H02P 23/00 (2006.01) H02P 23/08 (2006.01)
Patent
CA 1192256
Abstract An AC induction motor control system wherein two pulse trains are generated, one pulse train including a pulse for each increment of rotor movement, and the other pulse train having pulses occurring at a rate proportional to slip. The pulse trains are combined in a counter which controls formation of synthesized winding excitations developed from pre-recorded sine values. The slip pulse train is developed according to pre-recorded slip factors selected as a function of rotor speed and modified in accordance with desired torque.
410498
Kollmorgen Corporation
Macrae & Co.
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