Generalized difference control of parallel streams temperatures | |
Wang, XX ; Zheng, DZ | |
2010-05-06 ; 2010-05-06 | |
关键词 | furnace control multi-stream control outlet temperature control difference control technique (DCT) decoupling differences control technique (DsCT) CASCADE CONTROL FURNACE SYSTEM Automation & Control Systems Engineering, Chemical |
中文摘要 | A furnace with multiple parallel passes and multiple burners is commonly seen in petroleum refineries. In order to maintain the furnace running in a safe, stable, and high-efficiency state it is necessary to control the outlet temperatures of the multiple passes to be the same. Due to the fact that the process of the oil heating in such furnace is nonlinear, multivariable, time varying, has serious coupling among passes, has frequent dynamic changes and a large time delay, traditional control methods have trouble ill controlling these temperatures, and some advanced control methods, including predictive control, adaptive control, and robust control, are usually too complex for convenient use. In this paper, a control technique, called differences control technique (DsCT), is proposed to distribute the stream flowrates such that the stream temperatures are as identical as possible. The principle of the proposed technique is explained and demonstrated, and the results of its application to a real-life petroleum refinery furnace are also reported. The DsCT technique has the following advantages: it does not need complicated design procedures, the controller structure is simple, it is easy to apply, and it can be canonically applied to furnaces with different number of passes. (c) 2005 Elsevier Ltd. All rights reserved. |
语种 | 英语 ; 英语 |
出版者 | ELSEVIER SCI LTD ; OXFORD ; THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND |
内容类型 | 期刊论文 |
源URL | [http://hdl.handle.net/123456789/9587] |
专题 | 清华大学 |
推荐引用方式 GB/T 7714 | Wang, XX,Zheng, DZ. Generalized difference control of parallel streams temperatures[J],2010, 2010. |
APA | Wang, XX,&Zheng, DZ.(2010).Generalized difference control of parallel streams temperatures.. |
MLA | Wang, XX,et al."Generalized difference control of parallel streams temperatures".(2010). |
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