Multi-objective optimisation of the operation of a water distribution network

Abstract The aim was to move water through the reservoir network in such a way as to meet consumer demands and level constraints, minimise the cost of electricity, and minimise the loss of chlorine. This was to be achieved by choosing the switching intervals of reservoir inlet pumps and valves, at the same time complying with the allowed minimum interval size of each device. Flows were balanced by Linear Programming. The genetic algorithm gave confidence in the near-optimality of its solutions, through well-defined Pareto fronts between the competing objectives. The method was applied to a 16-reservoir water distribution system in Durban, South Africa. Comparison with an equivalent “dead-band” control showed a 30% improvement in a weighted objective.

[1]  Lu Bai,et al.  Non-dominated Sorting Genetic Algorithms-IIBased on Multi-objective Optimization Model in the Water Distribution System , 2012 .

[2]  Vasile Lavric,et al.  Multi-objective Optimization of Semi-continuous Water Networks , 2011 .

[3]  C. J. Brouckaert,et al.  Optimal operation of water distribution networks by predictive control using MINLP , 2004 .

[4]  Kalyanmoy Deb,et al.  A fast and elitist multiobjective genetic algorithm: NSGA-II , 2002, IEEE Trans. Evol. Comput..

[5]  Nemanja Trifunović,et al.  Optimization and Reliability Assessment of Water Distribution Networks Incorporating Demand Balancing Tanks , 2014 .

[6]  Wenyan Wu,et al.  Research on Optimal Operation Method of Large Scale Urban Water Distribution System , 2014 .

[7]  Feifei Zheng,et al.  An efficient decomposition and dual-stage multi-objective optimization method for water distribution systems with multiple supply sources , 2014, Environ. Model. Softw..

[8]  Francesca Pianosi,et al.  Artificial Neural Networks and Multi Objective Genetic Algorithms for water resources management: an application to the Hoabinh reservoir in Vietnam , 2011 .

[9]  F. Leon,et al.  COMPARATIVE STUDY OF MULTIOBJECTIVE GENETIC ALGORITHMS , 2010 .

[10]  C J Brouckaert,et al.  Optimal operation of a potable water distribution network. , 2002, Water science and technology : a journal of the International Association on Water Pollution Research.

[11]  Manuel López-Ibáñez,et al.  Operational optimisation of water distribution networks , 2009 .

[12]  Avi Ostfeld,et al.  Multi-objective optimization of water quality, pumps operation, and storage sizing of water distribution systems. , 2013, Journal of environmental management.

[13]  Luigi Berardi,et al.  Supporting Decision on Energy vs. Asset Cost Optimization in Drinking Water Distribution Networks , 2014 .

[14]  Doosun Kang,et al.  Real-time Optimal Control of Water Distribution Systems☆ , 2014 .