Method and apparatus for controlling an alternating current machine
AssigneeDeere & Company
InventorsLong Wu, Tianjun Fu, Chris J. Tremel
Life of this patent
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Abstract
In one example embodiment, a device for controlling an alternating current (AC) machine is disclosed. The device includes a processor configured to determine a plurality of instantaneous voltages corresponding to a plurality of phase voltages of an inverter, the inverter driving the AC machine. The processor is further configured to determine an actual line-to-line voltage of the inverter based on the plurality of instantaneous voltages. The processor is further configured to determine a terminal voltage feedback for controlling the AC machine, based on the determined actual line-to-line voltage and a terminal voltage threshold.
Claims21
A control device for controlling an alternating current (AC) machine, comprising:
- a processor configured to,
- determine a plurality of instantaneous voltages corresponding to a plurality of phase voltages of an inverter, the inverter driving the AC machine,
- determine an actual line-to-line voltage of the inverter based on the plurality of instantaneous voltages, and
- determine a terminal voltage feedback for controlling the AC machine based on the determined actual line-to-line voltage and a terminal voltage threshold.
A method for controlling an alternating current (AC) machine, comprising:
- determining, by a processor, a plurality of instantaneous voltages corresponding to a plurality of phase voltages of the inverter, the inverter driving the AC machine;
- determining, by the processor, an actual line-to-line voltage of the inverter based on the plurality of instantaneous voltages;
- and
- determining, by the processor, a terminal voltage feedback for controlling the AC machine, based on the determined actual line-to-line voltage and a terminal voltage threshold.
Dependencies are inferred from the claim text.