Methods and systems for controlling a motor
AssigneeRegal Beloit America, Inc.
InventorsRoger Carlos Becerra, Ludovic Andre Chretien, Mark A. Brattoli, Glen C. Young
Life of this patent
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Abstract
A control system for a motor includes an inverter coupled to the motor. The control system further includes a microcontroller coupled to the inverter. The microcontroller includes a processor programmed to measure an input voltage and acquire a back EMF voltage of the motor. The processor is also programmed to control the inverter to regulate the motor voltage based on the input voltage and the back EMF voltage to facilitate controlling the motor.
Claims20
A method of controlling an operating parameter of a motor, the method comprising:
- transmitting an input voltage to a rectifier, wherein an amount of the transmitted input voltage is unknown and is within a predetermined range of input voltages;
- converting the input voltage to a DC voltage;
- measuring the input voltage by a microcontroller;
- acquiring a back EMF voltage of the motor;
- regulating the DC voltage based at least partially on input voltage and the back EMF voltage of the motor to control the motor for any amount of transmitted input voltage within the predetermined range of input voltages;
- transmitting the regulated DC voltage to the motor;
- and
- controlling the operating parameter of the motor based on the regulated DC voltage.
A method of controlling a speed of a motor, the method comprising:
- transmitting an input voltage to a rectifier, wherein an amount of the transmitted input voltage is unknown and is within a predetermined range of input voltages;
- converting the input voltage to a DC voltage;
- measuring the input voltage by a microcontroller;
- acquiring a back EMF voltage of the motor;
- regulating the DC voltage based at least partially on the input voltage and the back EMF voltage of the motor to control the motor for any amount of transmitted input voltage within the predetermined range of input voltages;
- transmitting the regulated DC voltage to the motor;
- and
- controlling the speed of the motor based on the regulated DC voltage.
A control system for controlling a motor, comprising:
- an inverter configured for coupling with the motor to receive an input voltage from a power source and to provide a regulated output voltage to the motor;
- and
- a microcontroller coupled to said inverter, said microcontroller comprising a processor programmed to:
- measure the input voltage, wherein an amount of the input voltage is unknown and is within a predetermined range of input voltages;
- acquire a back EMF voltage of the motor;
- and
- regulate the voltage output by said inverter voltage based at least partially on the measurements of the input voltage and the back EMF voltage to facilitate controlling operation of the motor for any amount of input voltage within the predetermined range of input voltages.
Dependencies are inferred from the claim text.