Control of Electric Drives in the Best Efficiency Region of Pumping System

The paper concentrates on improving the efficiency of the pumping system in which pumps are run by variable speed drives. The method is applicable to system consisting of several centrifugal pumps. Problems arising from running the pumps outside the optimal efficiency region are discussed. Common pr...

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Bibliographic Details
Main Author: Bakman Ilja
Format: Article
Language:English
Published: Riga Technical University Press 2014-10-01
Series:Electrical, Control and Communication Engineering
Subjects:
Online Access:https://doi.org/10.2478/ecce-2014-0014
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author Bakman Ilja
author_facet Bakman Ilja
author_sort Bakman Ilja
collection DOAJ
description The paper concentrates on improving the efficiency of the pumping system in which pumps are run by variable speed drives. The method is applicable to system consisting of several centrifugal pumps. Problems arising from running the pumps outside the optimal efficiency region are discussed. Common principles of operation and control of typical boosting pumping station are represented. Methods of regulation of productivity of the system are described. The proposed method is based on prediction of future efficiency of pumps before making adjustments of pumping system productivity. The proposed method is basing on tracking the working point of pump on efficiency graph. Monitoring the location of working point vs. efficiency graph enables to evaluate its current and future distances from the best efficiency point of the pump. Knowing the current number of running pumps it is possible to predict the location of working point after adjustment of productivity of the system. Ability to predict the increase or decrease of efficiency enables to enhance the adjustment of productivity of the system. Methods of graphical analysis of working state of the pumping system are representing topic for future research.
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spelling doaj.art-62bf262b72b9453485cc0bf564f3891f2025-01-02T16:35:57ZengRiga Technical University PressElectrical, Control and Communication Engineering2255-91592014-10-0161263110.2478/ecce-2014-0014ecce-2014-0014Control of Electric Drives in the Best Efficiency Region of Pumping SystemBakman Ilja0Doctoral Student, Tallinn University of TechnologyThe paper concentrates on improving the efficiency of the pumping system in which pumps are run by variable speed drives. The method is applicable to system consisting of several centrifugal pumps. Problems arising from running the pumps outside the optimal efficiency region are discussed. Common principles of operation and control of typical boosting pumping station are represented. Methods of regulation of productivity of the system are described. The proposed method is based on prediction of future efficiency of pumps before making adjustments of pumping system productivity. The proposed method is basing on tracking the working point of pump on efficiency graph. Monitoring the location of working point vs. efficiency graph enables to evaluate its current and future distances from the best efficiency point of the pump. Knowing the current number of running pumps it is possible to predict the location of working point after adjustment of productivity of the system. Ability to predict the increase or decrease of efficiency enables to enhance the adjustment of productivity of the system. Methods of graphical analysis of working state of the pumping system are representing topic for future research.https://doi.org/10.2478/ecce-2014-0014fluid flow controlpumpsstate estimationvariable speed drives
spellingShingle Bakman Ilja
Control of Electric Drives in the Best Efficiency Region of Pumping System
Electrical, Control and Communication Engineering
fluid flow control
pumps
state estimation
variable speed drives
title Control of Electric Drives in the Best Efficiency Region of Pumping System
title_full Control of Electric Drives in the Best Efficiency Region of Pumping System
title_fullStr Control of Electric Drives in the Best Efficiency Region of Pumping System
title_full_unstemmed Control of Electric Drives in the Best Efficiency Region of Pumping System
title_short Control of Electric Drives in the Best Efficiency Region of Pumping System
title_sort control of electric drives in the best efficiency region of pumping system
topic fluid flow control
pumps
state estimation
variable speed drives
url https://doi.org/10.2478/ecce-2014-0014
work_keys_str_mv AT bakmanilja controlofelectricdrivesinthebestefficiencyregionofpumpingsystem