Title:
CONTROLLER FOR INVERTER
Document Type and Number:
Japanese Patent JPS5849094
Kind Code:
A
Abstract:
PURPOSE:To prevent the damage of a shaft due to the twisting resonance of a shaft system by operating a motor from a resonance rotating speed capable of selecting in advance from the frequency of the motor by the motor frequency having different width in the vicinity of the resonance point. CONSTITUTION:A set speed signal omegaM is applied from a rotating speed setter 3 to a resonance avoidance instructing unit 4, a motor frequency setter 6, a jump voltage setter 7 and a voltage setter 8, respectively. The setter 7 is provided as a voltage setter which operate a motor to avoid the resonance region, and applies the set input V' as a resonance avoiding time voltage signal in response to the set speed signal omegaM to the setter 8. In this manner, the operation due to the frequency in the vicinity of the resonance point can be avoided.
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Inventors:
SHIODA TAKESHI
Application Number:
JP14561381A
Publication Date:
March 23, 1983
Filing Date:
September 17, 1981
Export Citation:
Assignee:
TOYO ELECTRIC MFG CO LTD
International Classes:
H02P27/06; H02M7/48; H02P1/02; (IPC1-7): H02M7/48; H02P7/62; H02P13/20
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