Optimal Operational Scheduling of Pumps to Improve the Performance of Water Distribution Networks

Mehdi Dini (), Mozhdeh Hemmati () and Saeed Hashemi ()
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Mehdi Dini: Azarbaijan Shahid Madani University
Mozhdeh Hemmati: Azarbaijan Shahid Madani University
Saeed Hashemi: Hydraulic Modelling Engineer

Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), 2022, vol. 36, issue 1, No 23, 417-432

Abstract: Abstract Widely used software packages might still be deficient when it comes to optimal pump scheduling as they allow concurrent Variable Speed Pumps (VSPs) at low speeds and low efficiency. In this study, a new method is developed to optimize the Number of Active Pumps (NAPs) and their variable setting, not only to address the mentioned issue, but also to improve pressure reliability, leakage, and electrical power consumption in Water Distribution Networks (WDNs). For this purpose, an Active Pumps Index (API) is proposed to find the optimal NAPs at each time step and a single-objective Network Pressure Reliability Index (NPRI) is used to optimize VSP setting. Particle Swarm Optimization (PSO) algorithm is developed in MATLAB and linked with EPANET as the hydraulic simulator. The proposed method is applied to a sample and a real WDN. The results in both cases show a significant reduction in NAPs, as well as energy costs, while tangibly improving leakage and pressure reliability, especially in big pump stations with several pumps.

Keywords: EPANET; MATLAB; Optimal operational scheduling; PSO; Variable speed pumps; WDNs (search for similar items in EconPapers)
Date: 2022
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Citations: View citations in EconPapers (6)

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DOI: 10.1007/s11269-021-03034-8

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