Klepiszewski K, Schmitt T G
Institute of Environmental Engineering, University of Kaiserslautern, Germany.
Water Sci Technol. 2002;46(6-7):77-84.
While conventional rule based, real time flow control of sewer systems is in common use, control systems based on fuzzy logic have been used only rarely, but successfully. The intention of this study is to compare a conventional rule based control of a combined sewer system with a fuzzy logic control by using hydrodynamic simulation. The objective of both control strategies is to reduce the combined sewer overflow volume by an optimization of the utilized storage capacities of four combined sewer overflow tanks. The control systems affect the outflow of four combined sewer overflow tanks depending on the water levels inside the structures. Both systems use an identical rule base. The developed control systems are tested and optimized for a single storm event which affects heterogeneously hydraulic load conditions and local discharge. Finally the efficiencies of the two different control systems are compared for two more storm events. The results indicate that the conventional rule based control and the fuzzy control similarly reach the objective of the control strategy. In spite of the higher expense to design the fuzzy control system its use provides no advantages in this case.
虽然基于常规规则的下水道系统实时流量控制已被广泛应用，但基于模糊逻辑的控制系统仅被少量使用，但很成功。本研究的目的是通过水动力模拟，比较基于常规规则的合流制下水道系统控制与模糊逻辑控制。两种控制策略的目标都是通过优化四个合流制下水道溢流箱的利用存储容量来减少合流制下水道溢流体积。控制系统根据结构内部的水位影响四个合流制下水道溢流箱的流出量。两个系统使用相同的规则库。针对影响非均匀水力负荷条件和局部排放的单个暴雨事件，对开发的控制系统进行测试和优化。最后，针对另外两个暴雨事件比较两种不同控制系统的效率。结果表明，基于常规规则的控制和模糊控制同样达到了控制策略的目标。尽管设计模糊控制系统的成本较高，但在这种情况下使用它并没有优势。
