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US 8,810,427 B2Granted
Control system of an actuator for the actuation of submarine devices
AssigneeCameron International Corporation
InventorsCarlo Liberale, Fabio Imperiali
Life of this patent
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Abstract
Electronic control system for a submarine actuator, said actuator comprising a container body, from which a drive shaft projects that is suitable for inserting in a seat of said submarine device. The system comprises an electronic control board for at least one electric motor arranged inside said container body suitable for moving said drive shaft.
Claims18
A system, comprising:
- a submersible actuator, comprising:
- a first electric motor;
- a second electric motor;
- a common control circuit configured to control the first and second electric motors independently from one another to actuate a submersible flow control mechanism;
- a first container holding the first and second electric motors, wherein the first container is filled with a liquid;
- and
- a second container holding the control circuit, wherein the second container is filled with a gas;
- wherein the common control circuit is configured to compare a value of a control signal with an average of a number of previous control signals.
5 more elements
A system, comprising:
- a submersible actuator, comprising:
- a first electric motor;
- and
- a control circuit configured to control the first electric motor to actuate a submersible flow control mechanism, wherein the control circuit is configured to control a speed and a direction for rotation of the first electric motor based on a first feedback indicative of an actuator position and a second feedback indicative of an absorbed current and the control circuit is configured to calculate a maximum value for the speed based on a total displacement time for a desired displacement of the submersible flow control mechanism.
1 more element
A system, comprising:
- a submersible actuator, comprising:
- a first electric motor;
- and
- a control circuit configured to control the first electric motor to actuate a submersible flow control mechanism, wherein the control circuit is configured to control a speed and a direction for rotation of the first electric motor based on a target position, feedback, and historical data associated with the submersible actuator, wherein the historical data comprises historical control signals received by the control circuit, and wherein the control circuit is configured to compare a value of a control signal with an average of a number of previous control signals.
1 more element
Dependencies are inferred from the claim text.