초록 ▼

The subject matter of this specification can be embodied in, among other things, a method that includes receiving one or more surge value parameters, selecting a first value from a selected parameter of the one of the parameters, determining a moving average, determining a rate of change, identifyin

The subject matter of this specification can be embodied in, among other things, a method that includes receiving one or more surge value parameters, selecting a first value from a selected parameter of the one of the parameters, determining a moving average, determining a rate of change, identifying a first phase of a surge cycle based on determining that the rate of change exceeds a threshold rate change, memorializing the first value, the moving average value, and a first time index, receiving a second value of the selected parameter, identifying a second phase of the surge cycle, receiving a third value of the selected parameter, identifying a third phase of the surge cycle, and providing an indication that one or more compressor surge cycles have occurred.

대표청구항 ▼

1. A method for detecting a compressor surge cycle of a compressor, comprising: receiving, at a surge detector and from one or more feedback devices, one or more measurement signals of a compressor;determining, by the surge detector, one or more surge value parameters based on the one or more measur

1. A method for detecting a compressor surge cycle of a compressor, comprising: receiving, at a surge detector and from one or more feedback devices, one or more measurement signals of a compressor;determining, by the surge detector, one or more surge value parameters based on the one or more measurement signals;selecting, by the surge detector, a first value from a selected surge value parameter of the one or more surge value parameters;determining, by the surge detector, a moving average value for the selected surge value parameter;determining, by the surge detector, a rate of change value for the selected surge value parameter;identifying, by the surge detector, a first phase of a surge cycle based on determining that the rate of change value exceeds a threshold rate change value;memorializing, by the surge detector, the first value, the moving average value, and a first time index value;determining, by the surge detector, a second value of the selected surge value parameter;identifying, by the surge detector, a second phase of the surge cycle based on the identification of the first phase and at least one of (1) determining, by the surge detector, that a first difference between the second value and the first value is at least equal to a first threshold difference value, and (2) determining, by the surge detector, that a second difference between the second value and the moving average value is at least equal to a second threshold difference value;determining, by the surge detector, a third value of the selected surge value parameter;identifying, by the surge detector, a third phase of the surge cycle based on the identification of the second phase and at least one of (1) determining, by the surge detector, that a third difference between the third value and the first value is less than the first difference, and that a fourth difference between the first difference and the third difference is at most equal to a third threshold difference value, and (2) determining, by the surge detector, that a fifth difference between the third value and the moving average value is less than the second difference, and that a sixth difference between the second difference and the fifth difference is at most equal to a fourth threshold difference value;providing, by the surge detector and in response to the identification of the third phase, an indication that one or more compressor surge cycles have occurred; andactivating, based on the indication, a safeguard operation for the compressor. 2. The method of claim 1, wherein determining one or more surge value parameters further comprises: receiving one or more unfiltered surge value parameters;transforming the one or more unfiltered surge value parameters by a signal filter into one or more filtered surge value parameters; andproviding the one or more filtered surge value parameters as one or more surge value parameters. 3. The method of claim 1, wherein the one or more surge value parameters are selected from a group of surge value parameters comprising: flow differential pressure, compressor suction pressure, compressor discharge pressure, compressor suction temperature, compressor rotational speed, and compressor prime mover power. 4. The method of claim 1, further comprising memorializing a time value representing a time at which the compressor surge cycle occurred. 5. The method of claim 4, further comprising determining, based on the time value, a quantity of one or more compressor surge cycles that have occurred within a threshold time period. 6. The method of claim 1, further comprising: identifying a base surge value parameter from the one or more surge value parameters;identifying a non-base surge value parameter from the one or more surge value parameters;determining a base surge event separation time equal to a normal phase shift between the non-base surge value parameter and the base surge value parameter;determining that a surge cycle has occurred at a first time based on the base surge value parameter;determining that a surge cycle has occurred at a second time based on the non-base surge value parameter;determining a time difference between the first time and the second time; anddetermining that a validated surge cycle has occurred, based on determining that the time difference is at most a threshold time difference. 7. A compressor protection system comprising: a data processing apparatus; anda non-transitory memory storage storing instructions executable by the data processing apparatus and that upon such execution cause the data processing apparatus to perform operations comprising: receiving one or more measurement signals of a compressor from one or more feedback devices;determining one or more surge value parameters based on the one or more measurement signals;selecting a first value from a selected surge value parameter of the one or more surge value parameters;determining a moving average value for the selected surge value parameter;determining a rate of change value for the selected surge value parameter;identifying a first phase of a surge cycle based on determining that the rate of change value exceeds a threshold rate change value;memorializing the first value, the moving average value, and a first time index value;receiving a second value of the selected surge value parameter;identifying a second phase of the surge cycle based on the identification of the first phase and at least one of (1) determining that a first difference between the second value and the first value is at least equal to a first threshold difference value, and (2) determining that a second difference between the second value and the moving average value is at least equal to a second threshold difference value;receiving a third value of the selected surge value parameter;identifying a third phase of the surge cycle based on the identification of the second phase and at least one of (1) determining that a third difference between the third value and the first value is less than the first difference, and that a fourth difference between the first difference and the third difference is at most equal to a third threshold difference value, and (2) determining that a fifth difference between the third value and the moving average value is less than the second difference, and that a sixth difference between the second difference and the fifth difference is at most equal to a fourth threshold difference value;providing, in response to identification of the third phase, an indication that one or more compressor surge cycles have occurred; andactivating, based on the indication, a safeguard for the compressor. 8. The compressor protection system of claim 7, wherein determining one or more surge value parameters further comprises: receiving one or more unfiltered surge value parameters;transforming the one or more unfiltered surge value parameters by a signal filter into one or more filtered surge value parameters; andproviding the one or more filtered surge value parameters as the one or more surge value parameters. 9. The compressor protection system of claim 7, wherein the one or more surge value parameters are selected from a group of surge value parameters comprising: flow differential pressure, compressor suction pressure, compressor discharge pressure, compressor suction temperature, compressor rotational speed, and compressor prime mover power. 10. The compressor protection system of claim 7, the operations further comprising memorializing a time value representing a time at which the compressor surge cycle occurred. 11. The compressor protection system of claim 10, the operations further comprising determining, based on the time value, a quantity of one or more compressor surge cycles that have occurred within a threshold time period. 12. The compressor protection system of claim 7, the operations further comprising: identifying a base surge value parameter from the one or more surge value parameters;identifying a non-base surge value parameter from the one or more surge value parameters;determine a base surge event separation time equal to a normal phase shift between the non-base surge value parameter and the base surge value parameter;determine that a surge cycle has occurred at a first time based on the base surge value parameter;determine that a surge cycle has occurred at a second time based on the non-base surge value parameter;determine a time difference between the first time and the second time; anddetermine that a validated surge cycle has occurred, based on determining that the time difference is at most a threshold time difference.