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US 10,476,421 B1Granted
Optimized switched reluctance phase current control in a continuous conduction mode
AssigneeCaterpillar Inc.
InventorsAhmed Khalil, Carlos Nino Baron, Chad Brewer, Jackson Wai, Yash Bhatia
Life of this patent
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Abstract
A device may select an operation mode based on at least one of a motor speed, a motor transient speed, or a motor power command value. The operation mode may be selected from a group of operation modes including a single pulse mode, a continuous conduction mode, and a variable dwell continuous conduction mode. The device may control a switched reluctance motor using the operation mode.
Claims20
A method, comprising:
- selecting, by a processor, an operation mode based on at least one of a motor speed, a motor transient speed, or a motor power command value,
- wherein the operation mode is selected from a group of operation modes including a single pulse mode, a continuous conduction mode, and a variable dwell continuous conduction mode;
- and
- controlling, by the processor, a switched reluctance motor using the operation mode.
1 more element
A switched reluctance motor control system, comprising:
- a memory;
- and
- a processor configured to:
- determine to transition from a single pulse operation mode to a continuous conduction operation mode;
- select, based on determining to transition to the continuous conduction operation mode, a variable dwell continuous conduction operation mode or a fixed conduction angle continuous conduction operation mode;
- and
- control a switched reluctance motor using the variable dwell continuous conduction operation mode or the fixed conduction angle continuous conduction operation mode.
4 more elements
A machine, comprising:
- a motor;
- an inverter coupled to the motor;
- and
- a processor configured to:
- select an operation mode, of a plurality of operation modes, for controlling a current provided by the inverter to the motor based on at least one of motor speed, a motor transient speed, or a motor power command value,
- wherein a first operation mode, of the plurality of operation modes, is associated with a first fixed current value and a first fixed conduction angle and a motor speed less than or equal to a threshold,
- wherein a second operation mode, of the plurality of operation modes, is associated with a second fixed current value and a variable conduction angle and the motor speed greater than the threshold, and
- wherein a third operation mode, of the plurality of operation modes, is associated with a variable current value and a second fixed conduction angle and the motor speed greater than the threshold;
- and
- control the motor using the selected operation mode.
7 more elements
Dependencies are inferred from the claim text.