SYSTEMS AND METHODS FOR OPERATING A COMPRESSION SYSTEM
A method of operating a compression system includes determining, by a controller, at least one of an operational point distance to surge and a surge margin based upon at least one of an electrical power consumed by a compressor and an electrical current consumed by the compressor, and at least one thermodynamic state measurement associated with the compressor.
1 . A method for operating a compression system, said method comprising:
determining, by a controller, at least one of an operational point distance to surge and a surge margin based upon:
at least one of an electrical power consumed by a compressor and an electrical current consumed by the compressor, and
at least one thermodynamic state measurement associated with the compressor.
2 . The method of claim 1 , wherein the at least one thermodynamic state measurement includes at least one of an inlet pressure at a compressor inlet and an inlet temperature at the compressor inlet.
3 . The method of claim 1 further comprising calculating, by the controller, a corrected power based upon the electrical power consumed by the compressor, an inlet temperature of the compressor, and an inlet pressure of the compressor.
4 . The method of claim 1 further comprising calculating, by the controller, a power at a surge limit line and a power at a choke limit line based upon the at least one thermodynamic state measurement.
5 . The method of claim 4 further comprising multiplying, by the controller, the power at the surge limit line by at least one of a variable guided vane modification factor and an inlet guided vane modification factor to generate a modified power at the surge limit line.
6 . The method of claim 5 further comprising:
calculating, by the controller, a corrected power based upon the electrical power consumed by the compressor, an inlet temperature of the compressor, and an inlet pressure of the compressor; and
calculating, by the controller, the operational point distance to surge based upon the modified power at a surge limit line and the corrected power.
7 . The method of claim 6 further comprising calculating, by the controller, the operational point distance to surge based upon a power at the choke limit line.
8 . A compression system comprising:
a compressor including an inlet;
a controller coupled to said compressor, said controller configured to:
determine at least one of an operational point distance to surge and a surge margin based upon:
at least one of an electrical power consumed by said compressor and an electrical current consumed by said compressor, and
at least one thermodynamic state measurement associated with said compressor.
9 . The compression system of claim 8 , wherein the at least one thermodynamic state measurement includes at least one of an inlet pressure at said compressor inlet and an inlet temperature at said compressor inlet.
10 . The compression system of claim 8 , wherein said controller is further configured to calculate a corrected power based upon the electrical power consumed by said compressor, an inlet temperature of said compressor, and an inlet pressure of said compressor.
11 . The compression system of claim 8 , wherein said controller is further configured to calculate a power at a surge limit line and a power at a choke limit line based upon the at least one thermodynamic state measurement.
12 . The compression system of claim 11 , wherein said controller is further configured to multiply the power at the surge limit line by at least one of a variable guided vane modification factor and an inlet guided vane modification factor to generate a modified power at the surge limit line.
13 . The compression system of claim 12 , wherein said controller is further configured to:
calculate a corrected power based upon the electrical power consumed by said compressor, an inlet temperature of said compressor, and an inlet pressure of said compressor; and
calculate the operational point distance to surge based upon the modified power at a surge limit line and the corrected power.
14 . The compression system of claim 13 , wherein said controller is further configured to calculate the operational point distance to surge based upon a power at the choke limit line.
15 . An article of manufacture comprising a non-transitory, tangible, computer readable storage medium having instructions stored thereon that, in response to execution by a controller, cause the controller to perform operations comprising:
determining, by the controller, at least one of an operational point distance to surge and a surge margin based upon:
at least one of an electrical power consumed by a compressor and an electrical current consumed by the compressor, and
at least one thermodynamic state measurement associated with the compressor.
16 . The article of claim 15 , wherein the at least one thermodynamic state measurement includes at least one an inlet pressure at a compressor inlet and an inlet temperature at the compressor inlet.
17 . The article of claim 15 further comprising calculating, by the controller, a corrected power based upon the electrical power consumed by the compressor, an inlet temperature of the compressor, and an inlet pressure of the compressor.
18 . The article of claim 15 further comprising calculating, by the controller, a power at a surge limit line and a power at a choke limit line based upon the at least one thermodynamic state measurement.
19 . The article of claim 18 further comprising multiplying, by the controller, the power at the surge limit line by at least one of a variable guided vane modification factor and an inlet guided vane modification factor to generate a modified power at the surge limit line.
20 . The article of claim 19 further comprising:
calculating, by the controller, a corrected power based upon the electrical power consumed by the compressor, an inlet temperature of the compressor, and an inlet pressure of the compressor; and
calculating, by the controller, the operational point distance to surge based upon the modified power at a surge limit line and the corrected power.