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本文介绍设计过程控制器的一个新概念。其基理为联合使用通过一决策机构指令而产生的模拟及逻辑功能以进行调节作用。控制器与决策机构作为一个实体在运行中既能产生变放大系数的比例作用又能根据决策机构发出的指令改变增益或实现保持功能。决策机构(或指令机构)一面接收并处理来自调节对象的被调量信息,另一方面按照优化调节的要求发出指令以指挥调节器的工作。本调节器的特点为:在同一整定参数下能同时实现快速性,变增益式自适应功能,高精度及稳定性。本调节器可以实现非振荡性无差最优(或次最优)调节过程,但无需借助于积分器。本调节器除可以实现比例控制以外,尚可进入比例加微分控制,从而能进一步提高调节品质。 为了检验本控制器原理的健全性,建立了这一控制器的一个电子模型,在此模型上进行的试验及从试验中取得的数据充分证实了理论与实验的一致性。
This article describes a new concept for designing process controllers. The rationale for this is the combined use of analogue and logical functions created by a decision-making body’s directives for regulatory purposes. As an entity, the controller and the decision-making body can both produce the proportional effect of variable amplification factor and change the gain or maintain the function according to the instruction issued by the decision-making body. The decision-making body (or command body) receives and processes the measured information from the object of regulation and, on the other hand, issues instructions to direct the performance of the regulator according to the requirements of the optimization. The characteristics of this regulator: the same tuning parameters can simultaneously achieve fast, variable gain adaptive function, high precision and stability. This regulator can achieve non-oscillatory optimal (or sub optimal) adjustment process without resorting to an integrator. In addition to the regulator can achieve proportional control, the ratio can still enter the proportional and differential control, which can further improve the quality of regulation. In order to test the robustness of the principle of the controller, an electronic model of the controller was established. The experiments carried out on the model and the data obtained from the experiments fully confirmed the consistency of theory and experiment.