Optimal scheduling and control of a multi-pump boosting system

An optimal scheduling and control method for a multiple pump system is proposed from the energy efficient point of view. The model-based optimal problem is first formulated and then converted to be a mixed integer nonlinear programming problem. The proposed method provides an optimal solution regarding to how many and which available pumps should be put into operation when the (head) demand to the system and/or system operating condition changes. The running speeds of operating pumps are also derived by the proposed algorithm. A feedback control mechanism is also introduced into the considered framework in order to enhance the system tracking performance and robustness. A nonlinear programming solution is derived and implemented in a testing facility. The experimental results show a clear and huge potential to improve multi-pump system´s efficiency using the proposed algorithm and framework.