APPARAT TIL AT REGULERE EN ROTERENDE MASKINES DREJNINGSMOMENT

A torque control apparatus for a compressor driven by a motor by means of a main shaft, in which variations of the rotation speed of the main shaft due to torque variations are detected at selected angular positions of rotation of the main shaft. Current values to be supplied to the motor for elimin...

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Bibliographic Details
Main Authors MACHIDA, SIGERU, NAKAMURA, YOZO, NAKAMURA, MITSURU, ENDO, TSUNEHIRO, HATA, HIROAKI
Format Patent
LanguageDanish
Published 10.06.1988
Edition4
Subjects
BLASTING
COMBINED HEATING AND REFRIGERATION SYSTEMS
CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS
CONTROLLING
CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
HEAT PUMP SYSTEMS
HEATING
LIGHTING
LIQUEFACTION SOLIDIFICATION OF GASES
MANUFACTURE OR STORAGE OF ICE
MECHANICAL ENGINEERING
PHYSICS
REFRIGERATION MACHINES, PLANTS OR SYSTEMS
REFRIGERATION OR COOLING
REGULATING
SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
WEAPONS
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Summary:A torque control apparatus for a compressor driven by a motor by means of a main shaft, in which variations of the rotation speed of the main shaft due to torque variations are detected at selected angular positions of rotation of the main shaft. Current values to be supplied to the motor for eliminating the rotation speed variations depending on the angular positions of rotation of the main shaft are computed and stored during at least one revolution of the main shaft, and, in the next revolution of the main shaft, that is to say when the main shaft rotates to a 360 degree advanced angular position, the motor current is controlled on the basis of the current values supplied for at least one revolution of the main shaft, thereby eliminating variations of the rotation speed of the main shaft.
Bibliography:Application Number: DK19860005903