Optimal Operation of Water Distribution Pumps Considering Water Quality
- 1 July 2000
- journal article
- Published by American Society of Civil Engineers (ASCE) in Journal of Water Resources Planning and Management
- Vol. 126 (4), 210-220
- https://doi.org/10.1061/(asce)0733-9496(2000)126:4(210)
Abstract
A new methodology has been developed for determining the optimal operation of water distribution system pumps with water quality considerations. The methodology is based upon describing the operation as a discrete time optimal scheduling problem that can be used to determine the optimal operation schedules of the pumps in distribution systems. The solution methodology is based upon a mathematical programming approach resulting in a large-scale nonlinear programming problem that cannot be solved using existing nonlinear codes. The solution of the optimization problem is obtained by interfacing a hydraulic and water quality simulation code, EPANET, with a nonlinear optimization code, GRG2. Bound constraints on the state variables are incorporated into the objective function using the augmented Lagrangian penalty method. Three objective functions were used in the model to minimize (1) the deviations of actual substance concentrations from desired concentration values; (2) the total pump duration times; or (3) the total energy cost. The effectiveness of the methodology was tested using a hypothetical water distribution system. All three objective functions were capable of finding an optimal pumping schedule with water quality considerations.Keywords
This publication has 20 references indexed in Scilit:
- The Application of Simulated Annealing to the Optimal Operation of Water SystemsPublished by American Society of Civil Engineers (ASCE) ,1999
- Optimal Scheduling of Booster Disinfection in Water Distribution SystemsJournal of Water Resources Planning and Management, 1998
- Optimization of Freshwater Inflows to Lavaca‐Tres Palacios, Texas, EstuaryJournal of Water Resources Planning and Management, 1994
- New Methodology for Optimization of Freshwater Inflows to EstuariesJournal of Water Resources Planning and Management, 1994
- Applying Water Quality ModelsPublished by Springer Science and Business Media LLC ,1994
- Optimal Pump Operations Considering Pump SwitchesJournal of Water Resources Planning and Management, 1994
- Methodology for Optimal Operation of Pumping Stations in Water Distribution SystemsJournal of Hydraulic Engineering, 1991
- A Hierarchical approach to optimized control of water distribution systems: Part II. Lower‐level algorithmOptimal Control Applications and Methods, 1988
- A hierarchical approach to optimized control of water distribution systems: Part I decompositionOptimal Control Applications and Methods, 1988
- An Ideal Penalty Function for Constrained OptimizationIMA Journal of Applied Mathematics, 1975