METHOD AND SYSTEM FOR CONTROLLING TORQUE IN PERMANENT MAGNET BRUSHLESS ELECTRIC MOTORS

METHOD AND SYSTEM FOR CONTROLLING TORQUE IN PERMANENT MAGNET BRUSHLESS ELECTRIC MOTORS

A novel method is proposed for controlling the torque of a PM brushless motor with sinusoidal back-emfs without current sensors by computing the required input phase voltages with measured rotor position and speed and known machine parameters. These voltages are fed to the machine at an angle comput...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: NAIDU, MALAKONDAIAH
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
LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
MOTOR VEHICLES
PERFORMING OPERATIONS
TRAILERS
TRANSPORTING
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Beschreibung
Zusammenfassung:A novel method is proposed for controlling the torque of a PM brushless motor with sinusoidal back-emfs without current sensors by computing the required input phase voltages with measured rotor position and speed and known machine parameters. These voltages are fed to the machine at an angle computed in terms of input parameters and the phase voltage with respect to their back-emfs so that phase currents are aligned with their back-emfs to exactly mimic the performance of the current mode controller.