Title:
CONTROLLER FOR INDUCTION MOTOR
Document Type and Number:
Japanese Patent JPS6185089
Kind Code:
A
Abstract:
PURPOSE:To perform the reduction in the sound at a light load time by providing a transfer element for applying the same delay as the operation delay of a magnetic flux component to a command of torque component. CONSTITUTION:A speed controller 6 outputs a torque command signal Itau*. A torque command signal Itau* input to a time constant regulator 16 forms a torque current command It* through the secondary resistor R2 of an induction motor and a transfer element by the secondary inductance L2. On the other hand, since a magnetic flux function generator 7 has no time delay to vary in linkage to the signal Itau*, the signal phi* is formed without time delay of the signal Itau*. A vector calculator 12 adds the vector sum of the signal It* and an exciting current command signal Im* and calculates the 3-phase AC primary current command i*.
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Inventors:
INABA HIROMI
NAGASE HIROSHI
SHIMA KIYOYA
ANDO TAKEYOSHI
KUROSAWA TOSHIAKI
HOKARI SADAO
TAKAHASHI HIDEAKI
NAGASE HIROSHI
SHIMA KIYOYA
ANDO TAKEYOSHI
KUROSAWA TOSHIAKI
HOKARI SADAO
TAKAHASHI HIDEAKI
Application Number:
JP20631384A
Publication Date:
April 30, 1986
Filing Date:
October 03, 1984
Export Citation:
Assignee:
HITACHI LTD
International Classes:
H02P21/00; H02P21/05; H02P21/22; H02P23/04; H02P23/07; H02P23/08; H02P23/16; H02P27/04; H02P27/08; (IPC1-7): H02P5/408
Attorney, Agent or Firm:
Akio Takahashi
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