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近年来从国外引进了大型化肥厂和石油化工厂,其中有过去在国内少见的选择性调节方案。为了吃透和消化这类软保护调节方案的设计思想和方法,使之“洋为中用”,我们对上述引进装置中所见的一些选择性调节进行了归纳、分类,并作过不同结构类型的选择性调节方案的试验和比较。本文着重阐述影响调节品质的积分饱和问题及防止积分饱和的办法。文中所介绍的理论分析和试验结论,将有助于自控工作者掌握选择性调节的设计和投运方法。
In recent years, the introduction of large-scale fertilizer plants and petrochemical plants from abroad, including the past in the country rarely seen selective adjustment programs. In order to thoroughly understand and assimilate the design ideas and methods of this kind of soft protection adjustment program and make it “suitable for foreign use,” we have summarized and classified some of the selective adjustments seen in the above introduction devices and made different structural types Test and comparison of selective regimens. This article focuses on the problems of integral saturation that affect the quality of regulation and how to prevent the integral from being saturated. The theoretical analysis and experimental conclusions introduced in this paper will help self-control workers master the design and operation methods of selective regulation.