Methods and apparatus for detecting and preventing compressor surge

A method comprising:

• calculating, at a transmitter configured to process data at a first processing rate, a derivative pressure value based on a first pressure value and a second pressure value of a compressor measured at a sensor operatively coupled to the transmitter, the derivative pressure value being calculated at the first processing rate to reduce a latency associated with calculating the derivative pressure value at a second processing rate less than the first processing rate;
• transmitting the derivative pressure value from the transmitter;
• receiving, at a controller operatively coupled to and separate from the transmitter and configured to process data at the second processing rate, the derivative pressure value calculated by and transmitted from the transmitter;
• comparing the derivative pressure value to a threshold value;
• and
• in response to determining that the derivative pressure value fails to satisfy the threshold value, actuating a valve operatively coupled to the compressor to enable an additional derivative pressure value of the compressor subsequently calculated by and transmitted from the transmitter to satisfy the threshold value.

A non-transitory tangible machine-readable storage medium comprising instructions that, when executed, cause a machine to, at least:

• calculate, at a transmitter configured to process data at a first processing rate, a derivative pressure value based on a first pressure value and a second pressure value of a compressor measured at a sensor operatively coupled to the transmitter, the derivative pressure value being calculated at the first processing rate to reduce a latency associated with calculating the derivative pressure value at a second processing rate less than the first processing rate;
• transmit the derivative pressure value from the transmitter;
• receive, at a controller operatively coupled to and separate from the transmitter and configured to process data at the second processing rate, the derivative pressure value calculated by and transmitted from the transmitter;
• compare the derivative pressure value to a threshold value;
• and
• in response to determining that the derivative pressure value fails to satisfy the threshold value, actuate a valve operatively coupled to the compressor to enable an additional derivative pressure value of the compressor subsequently calculated by and transmitted from the transmitter to satisfy the threshold value.