Feasibility Study of Direct-on-Line Energy-Efficient Motors in a Pumping Unit, Considering Reactive Power Compensation
The paper compares the economic effect of using capacitors in fixed speed drives of a pumping station when using energy-efficient motors of various types. Induction motors of IE2 and IE3 energy efficiency classes, a direct-on-line synchronous motor with a permanent magnet in the rotor, and a direct-...
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doaj-66d22dda88fd4f15861fb55804d688532021-09-26T00:37:56ZengMDPI AGMathematics2227-73902021-09-0192196219610.3390/math9182196Feasibility Study of Direct-on-Line Energy-Efficient Motors in a Pumping Unit, Considering Reactive Power CompensationVadim Kazakbaev0Safarbek Oshurbekov1Vladimir Prakht2Vladimir Dmitrievskii3Department of Electrical Engineering, Ural Federal University, Yekaterinburg 620002, RussiaDepartment of Electrical Engineering, Ural Federal University, Yekaterinburg 620002, RussiaDepartment of Electrical Engineering, Ural Federal University, Yekaterinburg 620002, RussiaDepartment of Electrical Engineering, Ural Federal University, Yekaterinburg 620002, RussiaThe paper compares the economic effect of using capacitors in fixed speed drives of a pumping station when using energy-efficient motors of various types. Induction motors of IE2 and IE3 energy efficiency classes, a direct-on-line synchronous motor with a permanent magnet in the rotor, and a direct-on-line synchronous reluctance motor are considered. The comparison takes into account not only the efficiency of the motors, but also their power factor, on which the losses in the cable and transformer depend. The possibility of using static capacitors to compensate for the reactive power of motors and reduce the losses is also considered. The feasibility analysis takes into account that the motors have different initial costs. The cost of capacitors is also taken into consideration. The analysis shows that the use of static capacitors can have a significant impact on the comparison between different motors in this application. Without considering capacitors, the permanent magnet motor has the shortest payback period, otherwise the synchronous reluctance motor has the shortest payback period.https://www.mdpi.com/2227-7390/9/18/2196centrifugal pumpdirect-on-line permanent magnet synchronous motordirect-on-line synchronous reluctance motorenergy efficiencyinduction motorpermanent magnet motor |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Vadim Kazakbaev Safarbek Oshurbekov Vladimir Prakht Vladimir Dmitrievskii |
spellingShingle |
Vadim Kazakbaev Safarbek Oshurbekov Vladimir Prakht Vladimir Dmitrievskii Feasibility Study of Direct-on-Line Energy-Efficient Motors in a Pumping Unit, Considering Reactive Power Compensation Mathematics centrifugal pump direct-on-line permanent magnet synchronous motor direct-on-line synchronous reluctance motor energy efficiency induction motor permanent magnet motor |
author_facet |
Vadim Kazakbaev Safarbek Oshurbekov Vladimir Prakht Vladimir Dmitrievskii |
author_sort |
Vadim Kazakbaev |
title |
Feasibility Study of Direct-on-Line Energy-Efficient Motors in a Pumping Unit, Considering Reactive Power Compensation |
title_short |
Feasibility Study of Direct-on-Line Energy-Efficient Motors in a Pumping Unit, Considering Reactive Power Compensation |
title_full |
Feasibility Study of Direct-on-Line Energy-Efficient Motors in a Pumping Unit, Considering Reactive Power Compensation |
title_fullStr |
Feasibility Study of Direct-on-Line Energy-Efficient Motors in a Pumping Unit, Considering Reactive Power Compensation |
title_full_unstemmed |
Feasibility Study of Direct-on-Line Energy-Efficient Motors in a Pumping Unit, Considering Reactive Power Compensation |
title_sort |
feasibility study of direct-on-line energy-efficient motors in a pumping unit, considering reactive power compensation |
publisher |
MDPI AG |
series |
Mathematics |
issn |
2227-7390 |
publishDate |
2021-09-01 |
description |
The paper compares the economic effect of using capacitors in fixed speed drives of a pumping station when using energy-efficient motors of various types. Induction motors of IE2 and IE3 energy efficiency classes, a direct-on-line synchronous motor with a permanent magnet in the rotor, and a direct-on-line synchronous reluctance motor are considered. The comparison takes into account not only the efficiency of the motors, but also their power factor, on which the losses in the cable and transformer depend. The possibility of using static capacitors to compensate for the reactive power of motors and reduce the losses is also considered. The feasibility analysis takes into account that the motors have different initial costs. The cost of capacitors is also taken into consideration. The analysis shows that the use of static capacitors can have a significant impact on the comparison between different motors in this application. Without considering capacitors, the permanent magnet motor has the shortest payback period, otherwise the synchronous reluctance motor has the shortest payback period. |
topic |
centrifugal pump direct-on-line permanent magnet synchronous motor direct-on-line synchronous reluctance motor energy efficiency induction motor permanent magnet motor |
url |
https://www.mdpi.com/2227-7390/9/18/2196 |
work_keys_str_mv |
AT vadimkazakbaev feasibilitystudyofdirectonlineenergyefficientmotorsinapumpingunitconsideringreactivepowercompensation AT safarbekoshurbekov feasibilitystudyofdirectonlineenergyefficientmotorsinapumpingunitconsideringreactivepowercompensation AT vladimirprakht feasibilitystudyofdirectonlineenergyefficientmotorsinapumpingunitconsideringreactivepowercompensation AT vladimirdmitrievskii feasibilitystudyofdirectonlineenergyefficientmotorsinapumpingunitconsideringreactivepowercompensation |
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