Fuzzy logic supervisory control for steam turbine prewarmingautomation

摘要

The process of warming a large steam turbine after an extendedperiod of maintenance or inactivity is called “prewarming”.Currently, many large steam turbines are prewarmed manually in anotherwise completely automated startup procedure. An approach isoutlined for automating the prewarming of large steam turbines usingfuzzy logic. In this approach, heuristics employed by a human operatorduring prewarming are captured in a fuzzy rule base and used by asupervisory controller