Development of automatic control system of drum boiler on the basis of fuzzy controller with pid-controller adaptationDilnoza Umurzakova, Timurbek Abdullayev, Akhror Khakimov and Zulayho QadamovaE3S Web of Conf., 508 (2024) 01007DOI: https://doi.org/10.1051/e3sconf/202450801007