PARALLEL OPERATION CONTROL METHOD FOR PUMP

PURPOSE:To make it possible to control the rotating speed to a desired value at the same time for a plurality of pumps being operated in parallel by adjusting the rotating speed of an internal combustion engine without using any inverter speed controller. CONSTITUTION:An internal combustion engine E...

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Bibliographic Details
Main Authors SHINODA TAKAAKI, YAMADA SADAKAZU
Format Patent
LanguageEnglish
Published 04.11.1992
Subjects
BLASTING
CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS
CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
HEATING
LIGHTING
MECHANICAL ENGINEERING
POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS
PUMPS
PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
WEAPONS
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Summary:PURPOSE:To make it possible to control the rotating speed to a desired value at the same time for a plurality of pumps being operated in parallel by adjusting the rotating speed of an internal combustion engine without using any inverter speed controller. CONSTITUTION:An internal combustion engine E, an AC generator G and one of a plurality of pumps P are connected to a same shaft, the AC generator G and said one pump P are rotated and driven by the internal combustion engine E, a motor M for pump driving is directly connected to each pump P of a plurality of pumps, electric power generated from an AC generator E is supplied to a motor M for driving each pump, the frequency of power generated is changed by changing the rotating speed of the internal combustion engine E, and the rotation speed of a plurality of pumps P is controlled almost to the same speed.
Bibliography:Application Number: JP19910106845