On the robustness of fault detection in reciprocating compressor valves
Sprache des Titels:
Englisch
Original Buchtitel:
Proceedings of the IEEE SMC 2014 Conference
Original Kurzfassung:
This paper examines robustness issues of fault
detection methods for reciprocating compressor valves. The
authors have previously proposed two independent fault detection
approaches for reciprocating compressor valves. One method is
based on vibration analysis of accelerometer data, the other
one on analyzing pV diagrams. Based on real world data,
experiments are conducted to conclude on the robustness of those
methods. The data are manipulated in two ways: decreasing the
sampling rate and adding noise. The results suggest that the
method analyzing pV diagrams is very robust against noise and
especially downsampling, while the vibration analysis method
is very sensitive if the sampling rate drops below a certain
level. Additionally, a sequential probability ratio test is employed.
The experiments show the capability of the test to increase the
detection accuracy for both methods.
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