Vanrolleghem P A, Gillot S
BIOMAT, Ghent University, Gent, Belgium.
Water Sci Technol. 2002;45(4-5):117-26.
The objective of this paper was to investigate the usefulness of new multi-criteria measures to evaluate a control strategy through the Benchmark protocol. Using a case study in which respirometry-based control strategies are evaluated, the proposed measures were calculated. An economic index including weighted investment and operating costs (termed Total Cost Index--TCI) appears more powerful than a grey-scale presentation approach. Using the latter approach, it is hard to reflect the relative importance of the criteria investigated, which makes practical decisions rather difficult. In addition, a Robustness Index (RI) is proposed that allows us to evaluate the transferability of control strategies to situations different from the ones defined in the benchmark protocol. Finally, the case study shows that it may be advisable to replace the currently used open loop benchmark reference by a plant in which dissolved oxygen is controlled in all aerated reactors. This quite simple strategy also turned out to be the best one among all evaluated strategies.
本文的目的是通过基准协议研究新的多标准措施在评估控制策略方面的实用性。通过一个评估基于呼吸测量法的控制策略的案例研究，计算了所提出的措施。一个包括加权投资和运营成本的经济指标（称为总成本指数——TCI）似乎比灰度呈现方法更有效。使用后一种方法，很难反映所研究标准的相对重要性，这使得实际决策相当困难。此外，还提出了一个稳健性指数（RI），它使我们能够评估控制策略向不同于基准协议中定义的情况的可转移性。最后，案例研究表明，用一个在所有曝气反应器中控制溶解氧的工厂取代目前使用的开环基准参考可能是明智的。这个相当简单的策略在所有评估策略中也被证明是最好的。
