How the RUL module works

摘要

The Fleet-Wide Prognostics and Health Management software's Remainin Useful Life (RUL) module uses plant information to determine how long an ageing asset will continue to provide reliable service. The module relies on the RUL signature database, which collects and organises power plant asset life model information, archiving and sharing in-service asset life information to enable accurate prognostic projections. RUL signatures define the information necessary to analyse recent plant information and make a remaining-life prediction for a particular type of asset that is experiencing a specific fault condition. (For example: at what date will fouling of stator bar cooling water channels reach a level that will require a unit derate, or chemical cleaning action, in order to keep stator bar temperatures below operability limits in the main generator?) The RUL estimate is recalculated automatically each time the model input data is updated.