- Title
- A structured procedure for developing sustainable operating plans for complex water resources systems
- Creator
- Godoy, Walter; Barton, Andrew; Perera, Bimalka
- Date
- 2015
- Type
- Text; Conference paper
- Identifier
- http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/161121
- Identifier
- vital:12410
- Abstract
- Water resources planning processes around the world are increasingly striving to incorporate sustainability principles in order to find optimal solutions to multi-criterial decision-making problems. The availability of sophisticated modelling techniques such as optimisation-simulation (O-S) models provide a proven approach to efficiently and effectively search for optimal solutions using trusted simulation models. However, optimisation problems in water resources planning are seldom represented using three or more objectives; the so called 'many-objective' multi-objective optimisation problems. Limiting problem dimensionality in this way simplifies visualisation of Pareto-optimal solutions, reduces computational effort, and simplifies the evaluation and interpretation of results. The aim of this study is to present a structured procedure for developing optimal operating plans for complex water resources systems using a combined multi-objective optimisation and sustainability assessment approach. The approach is applied to an 18-objective function MOOP which represents four broad categories relating to environmental, social, consumptive, and system-wide interests for water. The Wimmera-Mallee Water Supply System (WMWSS) is a multi-reservoir system located in Western Victoria (Australia) which is operated to meet a range of conflicting interests for water using complex operating rules. An O-S model is presented which uses the Elitist Non-dominated Sorting Algorithm (NSGA-II) as the optimisation engine and the REsource ALlocation Model (REALM) software as the simulation engine. This O-S model is applied to the WMWSS to search and evaluate candidate optimal operating plans over a 118-year period assuming historic hydro-climatic conditions. The resulting optimal operating plans are ranked in terms of their overall sustainability and compared to a known reference point or 'base case operating plan' which represents the status quo in operating rules for the WMWSS case study. The results show that the combined multi-objective optimisation and sustainability assessment approach is able to find optimal operating plans that are more sustainable than the base case operating plan.
- Publisher
- Engineers Australia
- Relation
- 36th Hydrology and Water Resources Symposium : The art and science of water p. 1213-1220
- Rights
- This metadata is freely available under a CCO license
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