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Optimising pump system with constant and variable speed pumps: case study

Fang, Haien, WU, Wenyan, LU, Mou and Gao, Jinliang (2011) Optimising pump system with constant and variable speed pumps: case study. International Journal of Modelling, Identification and Control, 12 (4). pp. 412-420. ISSN 1746-6172

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Abstract or description

Optimising pump scheduling is a complex problem, which involves a large space search, continuous and discrete variables, physical and operational constraints and also multi-objectives. In this paper, multi-objective evolutionary algorithms (MOEAs) combined with a repair mechanism are used to solve the optimal operation problem within water supply system. In this work two objectives are minimised: operation cost (energy cost + treatment cost) and maintenance cost, while one objective is maximised: service level of hydraulic. Decision variables are the settings of the pumps and speed ratio of variable-speed pumps at a time step of the total operational time horizon. A mixed coding methodology and a new crossover operator are developed according to the characteristics of decision variables. Three well-known MOEAS (NSGA-II, epsilon-MOEA and SPEA2) are implemented and compared. Practical application of this method shows that it can make efficient decision to support the operators.

Item Type: Article
Uncontrolled Keywords: water supply networks; pump systems; multiobjective evolutionary algorithms; MOEA; mixed coding; repair mechanism; constant speed pumps; variable speed pumps; pump scheduling;
Faculty: Previous Faculty of Arts and Creative Technologies > Art and Design
Depositing User: Wenyan WU
Date Deposited: 15 Jan 2013 15:53
Last Modified: 24 Feb 2023 03:46
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