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| Design of Temperature Control System in Causticizing Process Based on Fuzzy Feed-forward Feed-back Control |
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| DOI：10.11981/j.issn.1000-6842.2013.03.54 |
| Key Words:caustic process; temperature control; feed-forward; fuzzy feed-back;smith predictor |
| Fund Project:江苏省制浆造纸科学与技术重点实验室开放基金项目(201010)。 |
| Author Name | Affiliation | | 尤 斌1,2 | 1.南京林业大学江苏省制浆造纸科学与技术重点实验室,江苏南京,210037；2.浙江中控系统工程有限公司,浙江杭州,310053 | | 彭 晗3 | 3.南京林业大学化学工程学院,江苏南京,210037 | | 胡慕伊1,* | 1.南京林业大学江苏省制浆造纸科学与技术重点实验室,江苏南京,210037 | | 熊智新1 | 1.南京林业大学江苏省制浆造纸科学与技术重点实验室,江苏南京,210037 |
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| Abstract: |
| Causticizing process is a large inertial, large time-delay, time-varying process with many random disturbances. Aiming at these problems, this paper improved the single-loop PID temperature control system and presentsed the feed-forward feed-back temperature control system based on fuzzy logic. This paper analyed the limit of applying the feed-forward feed-back system and discussed the application of Smith predictor. Combined with traditional fuzzy PID feed-back controller, the fuzzy feed-forward control system was applied to compensated the impact of vapor pressure on causticizing temperature. Simulation result showed that improved control system was much better than the traditional single-loop PID control system in dynamic performance and robustness. At last the paper also verified its excellent control effect by practical applications． |
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