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US 10,566,880 B2Granted
Sensorless control of a DC synchronous machine
AssigneeHamilton Sundstrand Corporation
InventorsGregory I. Rozman, Steven J. Moss, Jacek F. Gieras
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Abstract
An assembly for operating a DC synchronous machine according to an exemplary aspect of the present disclosure includes, among other things, a controller that is configured to determine a position of a rotating portion utilizing a carrier signal, adjust current supply to a field winding, and monitor and adjust operation of the DC synchronous machine based on various electrical parameters relating to the carrier signal. A method for operating a DC synchronous machine is also disclosed.
Claims15
An assembly comprising:
- a synchronous machine including a stationary portion and a rotating portion, the stationary portion including an armature winding, and the rotating portion including a rotating inverter coupled to an alternating current (AC) field winding;
- a carrier generator configured to cause a carrier signal to be injected into a magnetic field between the AC field winding and the armature winding;
- and
- a controller configured to cause the rotating inverter to communicate alternating current to the AC field winding at a frequency that is based upon the carrier signal and is adjusted to approach synchronization with a position of the rotating portion.
1 more element
Dependencies are inferred from the claim text.