Powerline interface communication
AssigneeBaker Hughes Energy Technology UK Limited
InventorsSteven Critchard, Julian Davis
Life of this patent
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Abstract
A subsea system, a communication system for determining operation of at least one subsea actuator member, and apparatus for controlling one or more valves are disclosed. The subsea system comprises at least one auxiliary equipment and/or valve actuator module; and at least one modem unit that receives power signals; wherein the auxiliary equipment is responsive to an output provided by the modem unit.
Claims19
A subsea system, comprising:
- a valve actuator module comprising
- a housing;
- a wet mating connector comprising a connection member on an outer surface of the housing and connectable to a power cable that receives a power signal, wherein the wet mating connector comprises a single pin or single socket;
- a modem unit within the housing and communicatively coupled to the wet mating connector and configured to receive the power signal, wherein the valve actuator module is configured to operate responsive to an output provided by the modem unit, the modem unit further comprising
- a diplexer member configured to separate the received power signal into a power output and a communications output;
- and
- a motor drive within the housing for actuating at least one auxiliary equipment, wherein the motor drive is responsive to the power output and the communications output provided by the modem unit.
A communication system for determining operation of at least one subsea actuator member, comprising:
- a housing;
- a motor drive unit within the housing for actuating at least one auxiliary equipment;
- a power line modem in the housing including a diplexer member configured to separate a received power signal into a power output and a control signal, and that provides the control signal that determines operation of the motor drive unit responsive to received power signals;
- and
- a wet mating connector on an outer surface of the housing that includes an electrical connection member and is configured to connect a power cable to the power line modem, wherein the wet mating connector includes a single pin or single socket configured to convey the power signal from the power cable to the power line modem.
An apparatus for controlling one or more valves, comprising:
- at least one valve actuator module comprising:
- a housing;
- a wet mating connector comprising an input electrical connection member on an outer surface of the housing and connected to at least one multi-drop power cable, the input electrical connection operable to receive at least one signal from which a power signal and a data signal are derivable, wherein the wet mating connector includes a single pin or single socket configured to convey the at least one signal;
- a signal processing member, including a diplexer member, within the housing in electrical and/or data communication with each of the input electrical connection member that is operable to at least partly separate the at least one signal into the power signal and the data signal;
- a junction box comprising:
- at least one second wet mating connector comprising at least one connection member on an outer surface of the junction box and connectable to at least one second power line that receives the power signals from a topside and/or a subsea control system;
- and
- the at least one multi-drop power cable having a first end and a second end, wherein the at least one multi-drop power cable is coupled at the first end to the junction box, and is coupled at the second end to the wet mating connector of at least one of the communication system;
- and
- a motor within the housing configured to actuate at least one valve using the power signal;
- wherein the power signal is modulated responsive to the data signal, and
- wherein the valve actuator module is releasable.
Dependencies are inferred from the claim text.