Metals, Free Full-Text
Por um escritor misterioso
Last updated 22 setembro 2024
Keeping the level of steel in the mold of the continuous casting process constant is fundamental for the quality of the steel produced and, consequently, its commercial value. It is challenging, considering the several disturbances that cause undesired variations in the mold level. The aim of this paper is to apply a repetitive structure composed of two controllers, a generalized predictive controller (GPC) and a repetitive GPC (R-GPC) with constraints to mitigate the bulging and clogging/unclogging disturbances and the casting speed variation in the mold level of the process. The R-GPC controller has the same characteristics as the GPC, such as performance, robustness to disturbances, and insertion of constraints, and its advantage is the elimination of periodic disturbances. The repetitive structure will be implemented with a robustness filter and tuned by a genetic algorithm (GA). The controller tests are performed by simulations of a nonlinear mathematical model of the mold level, validated using real data from the steel industry. The proposed controller reduces the bulging disturbance amplitude by 98.5% and at 25% of the frequency of reversions in the valve. Consequently, the proposed controller allows an increase in the valve life span, a reduction in maintenance costs, and quality improvement in the steel slab.
The Burning Of Magnesium Involves A Conversion Of - Colaboratory
Articles by Luke Peterson's Profile, The Salt Lake Tribune Journalist
Introduction To The Physical Metallurgy Of Welding Free - Colaboratory
Baby Food & Heavy Metals – Healthy Children Project
JOM Home
Premier Metals Southend-on-Sea
Metal-Free Catalysts for Oxygen Reduction Reaction
Electric Conduction in Semiconductors and Metals. W. Ehrenberg. Oxford University Press, New York, 1958. x + 389 pp. Illus. $10.10.
Metal Text PSD, 50,000+ High Quality Free PSD Templates for Download
Recomendado para você
você pode gostar