Slip energy recovery control system using hybrid inverter to imp

Details Slip energy recovery control system using hybrid inverter to imp Slip energy recovery control system using hybrid inverter to imp

1983-04-11

1984-08-21

Truhe, J. V.

Electricity: motive power systems

Induction motor systems

Primary circuit control

318803, H02P 540

Patent

active

044672594

ABSTRACT:
A hybrid inverter for a slip energy recovery system for a wound rotor motor employs six thyristors (for 3 phase operation) or equivalent devices. Three of these are operated continuously in the inversion mode, the other three being operated from zero degrees to 180 degrees. The result is that a characteristic that is identical to a semi-converter is obtained except in the inversion mode. The hybrid inverter produces zero quadrature current at the full speed of the wound rotor motor and, as desired, zero volts at maximum current and maximum volts at zero current.

REFERENCES:
patent: 4319177 (1982-03-01), Kawada et al.
patent: 4344026 (1982-08-01), Yoshiaka
patent: 4385267 (1983-05-01), Herbert et al.

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