Title:
NONINTERFERENCE VECTOR CONTROLLER OF INDUCTION MOTOR
Document Type and Number:
Japanese Patent JPS60190181
Kind Code:
A
Abstract:
PURPOSE:To accurately operate at a variable speed in a wide range by digitally processing with noninterference calculation to obtain a PWM voltage control signal in which the secondary magnetic flux and the secondary current are perpendicularly crossed. CONSTITUTION:A noninterference calculator 6 calculates the primary voltages e1alpha, e1beta of alpha-beta shaft in accordance with alpha-shaft primary current set value i1alpha* and beta-shaft primary current set value i1beta, and calculates in noninterference for eliminating mutal interference in the calculation. A coordinates converter 7 converts the primary voltages e1alpha, e1beta into polar coordinates data. A PWM waveform calculator 8 obtains to PWM-waveform process signals corresponding to the voltages ea, eb, ec of 3-phase fixed shafts from the polar coordinates signals ¦E¦, phi of a voltage vector V.
Inventors:
ASHIKAGA TADASHI
KAMANAKA YOSHIHIDE
FUSHIMI KEIKO
KAMANAKA YOSHIHIDE
FUSHIMI KEIKO
Application Number:
JP4438284A
Publication Date:
September 27, 1985
Filing Date:
March 08, 1984
Export Citation:
Assignee:
MEIDENSHA ELECTRIC MFG CO LTD
International Classes:
H02P27/08; H02M7/48; H02P21/00; H02P23/07; H02P23/16; H02P23/22; H02P23/24; H02P27/04; H02P27/06; (IPC1-7): H02P5/41
Domestic Patent References:
| JPS58195473A | 1983-11-14 |
Attorney, Agent or Firm:
Fujiya Shiga