Curtailed operation of multiple-wound induction motor following

Details Curtailed operation of multiple-wound induction motor following Curtailed operation of multiple-wound induction motor following

1999-05-26

2000-12-12

Salata, Jonathan

Elevator, industrial lift truck, or stationary lift for vehicle

Having specific load support drive-means or its control

Includes control for power source of drive-means

363 41, 363 55, 363 71, 312802, B66B 134

Patent

active

06158553&

ABSTRACT:
A multiple-wound, three-phase, variable speed motor having N independent winding sets is driven by N inverters, each responding to 1/N of the torque and excitation current commands, and the torque current is limited as a function of N times the limiting current each inverter may tolerate, when all inverters are functioning. When M inverters fail, they are disconnected from the motor, the torque current is limited as function of N-M times the limiting current each inverter may tolerate. The remaining N-M inverters may each respond to 1/(N-M) of the torque and excitation commands. The excitation current may be maximized as (N-M) times the limiting current divided by the square root of two. The speed command may be predetermined by the integration over an acceleration interval, of the maximum acceleration achievable with torque available from those of the inverters which have not failed, in view of the inverters' current limits.

REFERENCES:
patent: 3798530 (1974-03-01), Henderson
patent: 4063302 (1977-12-01), Donig
patent: 5237494 (1993-08-01), Baader et al.
patent: 5460244 (1995-10-01), Tanahashi
patent: 5629591 (1997-05-01), Thevenon
patent: 5768117 (1998-06-01), Takahashi et al.
patent: 5959858 (1999-09-01), Kanouda et al.
patent: 5969919 (1999-10-01), Kobayashi et al.
patent: 6031298 (2000-02-01), Lo et al.

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