CONTROL OF POWER GENERATION SYSTEM DURING ONLINE MAINTENANCE USING MULTIPLE MAINTENANCE MODES

• Main Authors: AMMERMAN, Melinda Stephanie, SOLACOLU, Christian-Anghel, SWEET, Bryan Edward, DALTON, Bret Stephen
• Format: Patent
• Language: English; French; German
• Published: 26.01.2022
• Subjects: BLASTING; ENGINE PLANTS IN GENERAL; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES; HEATING; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES; STEAM ACCUMULATORS; STEAM ENGINE PLANTS; STEAM ENGINES; WEAPONS

Embodiments of the disclosure provide a method for controlling a power generation system (100) during on-line maintenance. The method includes operating the power generation system (100) in a first maintenance mode, which causes a controller (180) of the power generation system (100) to disable an automated response to at least one operational fault of the power generation system (100); monitoring a risk parameter of the power generation system (100) or at least one sensor (164) within the power generation system (100) while operating the power generation system (100) in the first maintenance mode; and operating the power generation system (100) in a second maintenance mode in response to detecting an override command, an elapsed time exceeding a time limit, or the monitored risk parameter exceeding a safety threshold. The second maintenance mode causes the controller (180) of the power generation system (100) to enable the automated response to the at least one operational fault of the power generation system (100).