Centralized control mechanism for multi-motor drive
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United States of America Patent
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Jan 22, 2019
Grant Date -
Feb 15, 2018
app pub date -
Oct 23, 2017
filing date -
Apr 27, 2015
priority date (Note) -
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Abstract
A centralized control mechanism for a multi-motor drive, the mechanism including: a plurality of independent motor drive modules; a power source module; an interface control microprocessor; a communication module; and a plurality of interface modules of motors. The power source module supplies power for each circuit, and each independent motor drive module drives one permanent magnet motor. Each motor drive module includes a motor microprocessor, an inverter circuit, and a phase current detection circuit. The phase current detection circuit transmits detected data to the motor microprocessor, and the motor microprocessor outputs multiple paths of PWM signals to the inverter circuit and controls the inverter circuit. An output end of the inverter circuit is connected to a coil winding of the PM motor. The plurality of motor microprocessors communicates with the interface control microprocessor via a data bus. The interface control microprocessor communicates with the outside via the communication module.
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