Managing spills in reservoir design optimisation models

摘要

Reservoir sizing is traditionally performed by means of sequent peak analysis or simulation strategies, but may be more efficiently carried out by mathematical optimisation techniques. However, conventional optimisation formulations may cause unnecessary overflows to take place when the reservoir does not fill to capacity. This paper applies sequent peak analysis and often-used reservoir design optimisation (RDO) models to demonstrate this issue. A number of procedures are then proposed and tested to properly manage the spills in RDO problems. The procedures include mixed integer non-linear programming as well as mixed integer and standard linear programming. The results indicate their capability to avoid unnecessary reservoir spills.