POWER LIMITING FOR MOTOR CURRENT CONTROLLERS

POWER LIMITING FOR MOTOR CURRENT CONTROLLERS

A motor controller a pulse-width modulation (PWM) circuit (20), a power limit circuit (12), and an inverter (22). The PWM circuit (20) is configured to output initial count outputs based on a current command. The power limit circuit (12) includes a peak current detector (50), a divider (54), and a d...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: SINGH, Sameep, MASTROCOLA, Naison E
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
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
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Beschreibung
Zusammenfassung:A motor controller a pulse-width modulation (PWM) circuit (20), a power limit circuit (12), and an inverter (22). The PWM circuit (20) is configured to output initial count outputs based on a current command. The power limit circuit (12) includes a peak current detector (50), a divider (54), and a dynamic limiter (62). The power limit circuit (12) is configured to provide updated count outputs based on the initial count outputs, a sensed current, and a power threshold. The inverter (22) is controlled by the updated count outputs and configured to provide output power to a motor (24). The sensed current is sensed from the output power to the motor (24).