摘要
针对某丁二烯共沸精馏塔控制系统实际存在的问题,利用大量的现场数据,运用基于回归分析的软测量技术,设计了釜液中水含量软测量模型,实现了釜液水含量的在线实时估计。同时并根据实际的质量控制目标,设计了一个基于软测量的推断控制方案,并在推断控制算法中增加了约束控制功能,增强了控制系统的可靠性和实用性。现场运行结果表明,控制系统能够有效地解决精馏塔产品质量不能在线实时检测和直接质量闭环控制的问题,实现了釜液水含量的卡边控制。
In this paper, control problems of an industrial Azeotropic distillation column were discussed and improved. At first, the soft-sensor of water content in the bottom of the column was built based on on-the-spot data, through applying soft-sensor technology of regression. At the same time, an inferential control scheme with constrained control based on soft-sensor was designed. As a result of increasing constrained control in the arithmetic, the reliability and practicability of the system is strengthened. Application of the control system to the column showed that the control system can resolve effectively the problems that the product quality cannot be measured on-line and be close-loop controlled directly, and has realized the bounder control of water content in the bottom of the column.
出处
《计算技术与自动化》
2003年第2期31-34,42,共5页
Computing Technology and Automation
基金
杨子石化公司资助(01JSNJYZ101015)
