Modeling Variable Speed Pumps for Optimal Pump Scheduling

Ruben Menke, Edo Abraham, Ivan Stoianov

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

10 Citations (Scopus)

Abstract

Increasingly more variable speed drive pumps are installed in water distribution systems worldwide. However, the modeling of variable speed drives in such networks remains difficult, especially in the context of mathematical optimization for pump scheduling. For the problem of energy usage minimization, formulated as a mixed integer program, we propose a new simplified convex relaxation of the hydraulic characteristics of a variable speed pump. By using different model approximations for the power curve, as a function of pump speed and volumetric flow rate, we study the trade-off in the computational complexity and quality of solutions obtained. We use two small benchmark networks and real pump data from three different pumps to calculate operating schedules. We show that these schedules, are computed in a time suitable for operational usage, enable operation with lower operating cost compared to fixed speed pumps, and their sub-optimality can be computed.

Original languageEnglish
Title of host publicationWorld Environmental and Water Resources Congress 2016: Watershed Management, Irrigation and Drainage, and Water Resources Planning and Management - Papers from Sessions of the Proceedings of the 2016 World Environmental and Water Resources Congress
PublisherAmerican Society of Civil Engineers (ASCE)
Pages199-209
Number of pages11
ISBN (Electronic)9780784479858
DOIs
Publication statusPublished - 2016
Externally publishedYes
Event16th World Environmental and Water Resources Congress 2016: Watershed Management, Irrigation and Drainage, and Water Resources Planning and Management - West Palm Beach, United States
Duration: 22 May 201626 May 2016

Conference

Conference16th World Environmental and Water Resources Congress 2016: Watershed Management, Irrigation and Drainage, and Water Resources Planning and Management
CountryUnited States
CityWest Palm Beach
Period22/05/1626/05/16

Fingerprint Dive into the research topics of 'Modeling Variable Speed Pumps for Optimal Pump Scheduling'. Together they form a unique fingerprint.

Cite this