The design of a decision support system for the vibration monitoring of turbine generators

Todd, M. and McArthur, S.D.J. and West, G.M. and McDonald, J.R. (2004) The design of a decision support system for the vibration monitoring of turbine generators. In: 39th International Universities Power Engineering Conference (UPEC 2004), 2004-09-06 - 2004-09-08.

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Abstract

Condition Monitoring (CM) systems monitor the health of expensive plant items such as turbine generators. They interpret turbine parameters by signaling an alarm when pre-defined limits are breached. Often these alarms have no further operational consequence but still require investigation by an expert. This is a time consuming and laborious process due to the volume of data interpreted for each alarm. In order to reduce the burden of alarm assessment, a Decision Support System (DSS) is proposed. The DSS will feature a Routine Alarm Assessment (RAA) module which provides an initial analysis of the alarms, highlighting those with no further operational consequence and enabling the expert to focus on those which indicate a genuine problem with the turbine. The structured approach taken to capture and document the expert knowledge on RAA along with the generation of a module specification and the selected IS techniques are outlined. The implementation of an RAA prototype is discussed along with how this will act as a foundation for a full alarm interpretation and fault diagnostic system.

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