ファジィ制御応用による計測不可能な入力と状態の推定 : 第3報,ボイラ伝熱面蒸気温度のファジィ制御

概要

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In their first report, the authors proposed a fuzzy applied observer (FAO) as a solution to the nonlinear estimation problem with unmeasurable input. This paper deals with a steam-temperature control (STC) of a once-through boiler using FAO. The STC consists of a final superheater (FSH), spray attemperator at the FSH inlet, FAO and two compensators. One object of compensation is delay in the dynamic behavior of steam temperature and the other is the effect of unbalance between disturbances in heat absorption and steam flOW. The former is compensated by state-variable feedback and the latter is compensated using fuzzy control by way of temperature and the ratio of these two disturbances. Simulations are performed to confirm the control. The results show better control performances compared to the uncompensated case, with FAO being satisfactory.
社団法人日本機械学会の論文
1997-08-25