Vrecko D, Hvala N, Carlsson B
J. Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia.
Water Sci Technol. 2003;47(12):19-26.
In this paper a simulated plant based on a wastewater treatment benchmark is used to evaluate a number of controllers. Feedforward-feedback controllers for dissolved oxygen set-point and external carbon flow, and feedforward controller for internal recycle flow are evaluated separately and altogether. In the feedforward parts of the controllers, static physical models are incorporated in the control laws. The feedback parts of the controllers are used to compensate for model approximations. A simulation study shows that feedforward-feedback control of the activated sludge plant is more successful than standard PI control in meeting the effluent standards and reducing operational costs.
本文采用基于污水处理基准的模拟工厂来评估多种控制器。分别对溶解氧设定值和外部碳流的前馈-反馈控制器以及内部循环流的前馈控制器进行评估，并综合评估这些控制器。在控制器的前馈部分，控制律中纳入了静态物理模型。控制器的反馈部分用于补偿模型近似。一项模拟研究表明，活性污泥工厂的前馈-反馈控制在满足出水标准和降低运营成本方面比标准PI控制更为成功。
