document: A fuzzy logic approach to accommodate thermal stress and improve the start-up phase in combined cycle power plants Use of combined cycle power generation plant has increased dramatically over the last decade . A supervisory control approach based on a dynamic model is developed , which makes use of proportional-integral-derivative -LRB- PID -RRB- , fuzzy logic and fuzzy PID schemes . The aim is to minimize the steam turbine plant start-up time , without violating maximum thermal stress limits . An existing start-up schedule provides the benchmark by which the performance of candidate controllers is assessed . Improvements regarding possible reduced start-up times and satisfaction of maximum thermal stress restrictions have been realized using the proposed control scheme
doc_bio_tags: O B I I O O O O O O O O O O B I I I O O O O O O O O O O O O O O O O B I O O O O B I O O O O O O O O O O O O O O O B I I O O O O O O O O O O O O O O O B I I I O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O
extractive_keyphrases: combined cycle power plants supervisory control fuzzy logic approach dynamic model fuzzy pid schemes maximum thermal stress limits
abstractive_keyphrases: pid control steam turbine plant start-up time minimization start-up schedule