DETECTION OF BLOCKED AIR LINE FOR ELECTRIC COMPRESSOR AT START UP

DETECTION OF BLOCKED AIR LINE FOR ELECTRIC COMPRESSOR AT START UP

Systems and methods for detecting a blocked air discharge line of an air compressor are described, which include monitoring motor current (IMTR) drawn by a compressor motor (14), and calculating a three-point moving average for a steady state current drawn by the compressor motor (14) upon the motor...

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1. Verfasser: HAMDAN MARV
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Sprache:eng
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CONTROLLING
PHYSICS
REGULATING
SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
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description Systems and methods for detecting a blocked air discharge line of an air compressor are described, which include monitoring motor current (IMTR) drawn by a compressor motor (14), and calculating a three-point moving average for a steady state current drawn by the compressor motor (14) upon the motor reaching steady state (nominal) operating speed. A current threshold (IMTR_LIMIT) (28) is calculated as a function of the three-point moving average, and a determination is made regarding whether a current drawn by the compressor motor (14) has exceeded the current threshold (28) and is consistent with a current profile (34) indicative of a blocked air line (15). If a blocked air line is detected, a compressor shut-off command is generated and transmitted to the compressor motor (14) to shut the compressor motor off prior to opening of a safety valve (21) on the compressor (12).
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A current threshold (IMTR_LIMIT) (28) is calculated as a function of the three-point moving average, and a determination is made regarding whether a current drawn by the compressor motor (14) has exceeded the current threshold (28) and is consistent with a current profile (34) indicative of a blocked air line (15). 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subjects CONTROLLING
PHYSICS
REGULATING
SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
title DETECTION OF BLOCKED AIR LINE FOR ELECTRIC COMPRESSOR AT START UP
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