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一、前言间歇生产(批量生产)过程在工业生产中大量存在,有的对控制的要求相当高。如近年来发展起来的精细化工,由于其具有多品种,小批量和高产值的特点,使得间歇生产方式的重要性日益显著。因而解决间歇生产过程的高质量控制有其重要的实际意义。间歇生产过程经常要求某些工艺参数有一最佳时间安排,即被控参数是时间的函数,这就提出了对随时间变化的参数给定值进行跟随控制问题。采用常规PID控制规律很难满足这一要求;除了PID参数的整定十分麻烦外,主要还是由于该过程具有明显的慢时变特性,这是
I. INTRODUCTION The intermittent production (mass production) process exists in large quantities in industrial production, and some require very high control. Such as the development of fine chemicals in recent years, due to its multi-species, low-volume and high-yielding features, making intermittent mode of production is increasingly significant. Therefore, it is of important practical significance to solve the high quality control of batch process. Intermittent production processes often require that certain process parameters have an optimal schedule, that is, the controlled parameter is a function of time, which raises the issue of following control of parameterized values over time. It is difficult to meet this requirement by using the conventional PID control law. Besides the troublesome tuning of the PID parameters, it is mainly due to the obvious slow time-varying characteristic of the process, which is