US 12,352,276 B2
Control system for controlling a subsea gas compression system
Sudhir Chambhare, Oslo (NO)
Assigned to Vetco Gray Scandinavia AS, Sandvika (NO)
Appl. No. 15/573,859
Filed by Vetco Gray Scandinavia AS, Sandvika (NO)
PCT Filed May 9, 2016, PCT No. PCT/EP2016/060297
§ 371(c)(1), (2) Date Nov. 14, 2017,
PCT Pub. No. WO2016/180763, PCT Pub. Date Nov. 17, 2016.
Claims priority of application No. 20150611 (NO), filed on May 14, 2015.
Prior Publication US 2018/0258940 A1, Sep. 13, 2018
Int. Cl. F04D 25/06 (2006.01); F04D 27/02 (2006.01)
CPC F04D 25/0686 (2013.01) [F04D 27/0215 (2013.01); F04D 27/0261 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A subsea compression system including a compressor and an electric motor driving the compressor, the subsea compression system comprising:
a control system comprising a topside control system and a subsea control system, wherein the subsea control system comprises:
a plurality of process sensors configured to measure process parameters of the compression system;
a control unit comprising control hardware, the control hardware configured to operate at least one of the plurality of process sensors; and
a compressor controller embedded within a housing of an electric device, the compressor controller configured to generate control commands for controlling the electric motor and a valve based on measurements of the process parameters from the sensors, wherein the compressor controller comprises a surge control module that generates a control command for an anti-surge valve and an actuator control module that controls an actuator motor in response to the control command from the surge control module.