Collective Losses of Low Power Cage Induction Motors—A New Approach
Energy efficiency of systems of water pumping is a complex problem since efficiency of two distinct interacting systems needs to be combined: water and power supply. This paper introduces a non-intrusive method of calculating the so-called “collective losses” of a cage induction motor. The term “col...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-03-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/14/6/1749 |
| _version_ | 1827697037207928832 |
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| author | Elzbieta Szychta Leszek Szychta |
| author_facet | Elzbieta Szychta Leszek Szychta |
| author_sort | Elzbieta Szychta |
| collection | DOAJ |
| description | Energy efficiency of systems of water pumping is a complex problem since efficiency of two distinct interacting systems needs to be combined: water and power supply. This paper introduces a non-intrusive method of calculating the so-called “collective losses” of a cage induction motor. The term “collective losses”, which the authors define, allows for accurate estimation of motor efficiency. Control system of a pump determines operating point of a pumping station, and thus its efficiency. General estimated performance characteristics of a motor, components of a control system, are assumed to serve selection of a range of pumping speed variations. Rotational speed has a direct effect on motor load torque, pump power and head, and thus on motor performance. Hellwig’s statistical method was used to specify characteristics of estimated collective losses on the basis of experimental studies of 21 motors rated at up to 2.2 kW. The results of simulations and experiments are used to verify validity and efficiency of the suggested method. The method is non-intrusive, simple to use, and requires minimum data. |
| first_indexed | 2024-03-10T13:01:33Z |
| format | Article |
| id | doaj.art-0f63f85c235d496c98f24b1702a246bd |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T13:01:33Z |
| publishDate | 2021-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-0f63f85c235d496c98f24b1702a246bd2023-11-21T11:28:42ZengMDPI AGEnergies1996-10732021-03-01146174910.3390/en14061749Collective Losses of Low Power Cage Induction Motors—A New ApproachElzbieta Szychta0Leszek Szychta1Department of Electricity Power Plant, UTP University of Science and Technology in Bydgoszcz, 85-796 Bydgoszcz, PolandDepartment of Power Electronics, Electric Machines and Drives, UTP University of Science and Technology in Bydgoszcz, 85-796 Bydgoszcz, PolandEnergy efficiency of systems of water pumping is a complex problem since efficiency of two distinct interacting systems needs to be combined: water and power supply. This paper introduces a non-intrusive method of calculating the so-called “collective losses” of a cage induction motor. The term “collective losses”, which the authors define, allows for accurate estimation of motor efficiency. Control system of a pump determines operating point of a pumping station, and thus its efficiency. General estimated performance characteristics of a motor, components of a control system, are assumed to serve selection of a range of pumping speed variations. Rotational speed has a direct effect on motor load torque, pump power and head, and thus on motor performance. Hellwig’s statistical method was used to specify characteristics of estimated collective losses on the basis of experimental studies of 21 motors rated at up to 2.2 kW. The results of simulations and experiments are used to verify validity and efficiency of the suggested method. The method is non-intrusive, simple to use, and requires minimum data.https://www.mdpi.com/1996-1073/14/6/1749energy efficiencyinduction motorsmotor lossesHellwig’s methodestimation characteristicwater pump |
| spellingShingle | Elzbieta Szychta Leszek Szychta Collective Losses of Low Power Cage Induction Motors—A New Approach Energies energy efficiency induction motors motor losses Hellwig’s method estimation characteristic water pump |
| title | Collective Losses of Low Power Cage Induction Motors—A New Approach |
| title_full | Collective Losses of Low Power Cage Induction Motors—A New Approach |
| title_fullStr | Collective Losses of Low Power Cage Induction Motors—A New Approach |
| title_full_unstemmed | Collective Losses of Low Power Cage Induction Motors—A New Approach |
| title_short | Collective Losses of Low Power Cage Induction Motors—A New Approach |
| title_sort | collective losses of low power cage induction motors a new approach |
| topic | energy efficiency induction motors motor losses Hellwig’s method estimation characteristic water pump |
| url | https://www.mdpi.com/1996-1073/14/6/1749 |
| work_keys_str_mv | AT elzbietaszychta collectivelossesoflowpowercageinductionmotorsanewapproach AT leszekszychta collectivelossesoflowpowercageinductionmotorsanewapproach |