Novel approaches to representing the speed–time characteristics of a direct start-up induction machine driving gravitational-type loads
On ships, practically all types of induction machine loads are present, among which those with fan and gravitational characteristics are the most common. This paper addresses the speed–time curve dependency on the direct start of an induction machine under gravitational load. The characteristic of s...
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| Format: | Article |
| Language: | English |
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Faculty of Mechanical Engineering and Naval Architecture
2024-01-01
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| Series: | Brodogradnja |
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| Online Access: | https://hrcak.srce.hr/file/464592 |
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| author | Ilija Knežević Tatijana Dlabač Martin Ćalasan Maja Krčum |
| author_facet | Ilija Knežević Tatijana Dlabač Martin Ćalasan Maja Krčum |
| author_sort | Ilija Knežević |
| collection | DOAJ |
| description | On ships, practically all types of induction machine loads are present, among which those with fan and gravitational characteristics are the most common. This paper addresses the speed–time curve dependency on the direct start of an induction machine under gravitational load. The characteristic of speed–time, ω = f (t), is described through two analytical expressions. The first expression is derived using the formula for torque based on Thévenin’s equivalent circuit, while the second expression is derived from Kloss’s formula for torque. The mathematical model has been tested through simulation and experimental validation on an induction machine in laboratory conditions. Also, the paper includes a realised MATLAB program for determining the mentioned characteristics. The results show the high precision and practical applicability of the proposed analytical expressions in different working conditions. |
| format | Article |
| id | doaj-art-611ccd631fe149c3b8c5b813277cfc1c |
| institution | Kabale University |
| issn | 0007-215X 1845-5859 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | Faculty of Mechanical Engineering and Naval Architecture |
| record_format | Article |
| series | Brodogradnja |
| spelling | doaj-art-611ccd631fe149c3b8c5b813277cfc1c2025-01-09T11:42:10ZengFaculty of Mechanical Engineering and Naval ArchitectureBrodogradnja0007-215X1845-58592024-01-0175412010.21278/brod75402Novel approaches to representing the speed–time characteristics of a direct start-up induction machine driving gravitational-type loadsIlija Knežević0Tatijana Dlabač1Martin Ćalasan2Maja Krčum3Faculty of Maritime Studies Kotor, University of MontenegroFaculty of Maritime Studies Kotor, University of MontenegroFaculty of Electrical Engineering, University of MontenegroFaculty of Maritime Studies, University of SplitOn ships, practically all types of induction machine loads are present, among which those with fan and gravitational characteristics are the most common. This paper addresses the speed–time curve dependency on the direct start of an induction machine under gravitational load. The characteristic of speed–time, ω = f (t), is described through two analytical expressions. The first expression is derived using the formula for torque based on Thévenin’s equivalent circuit, while the second expression is derived from Kloss’s formula for torque. The mathematical model has been tested through simulation and experimental validation on an induction machine in laboratory conditions. Also, the paper includes a realised MATLAB program for determining the mentioned characteristics. The results show the high precision and practical applicability of the proposed analytical expressions in different working conditions.https://hrcak.srce.hr/file/464592mathematical modelinggravitational loadsinduction machineship auxiliary machinesship’s power system |
| spellingShingle | Ilija Knežević Tatijana Dlabač Martin Ćalasan Maja Krčum Novel approaches to representing the speed–time characteristics of a direct start-up induction machine driving gravitational-type loads Brodogradnja mathematical modeling gravitational loads induction machine ship auxiliary machines ship’s power system |
| title | Novel approaches to representing the speed–time characteristics of a direct start-up induction machine driving gravitational-type loads |
| title_full | Novel approaches to representing the speed–time characteristics of a direct start-up induction machine driving gravitational-type loads |
| title_fullStr | Novel approaches to representing the speed–time characteristics of a direct start-up induction machine driving gravitational-type loads |
| title_full_unstemmed | Novel approaches to representing the speed–time characteristics of a direct start-up induction machine driving gravitational-type loads |
| title_short | Novel approaches to representing the speed–time characteristics of a direct start-up induction machine driving gravitational-type loads |
| title_sort | novel approaches to representing the speed time characteristics of a direct start up induction machine driving gravitational type loads |
| topic | mathematical modeling gravitational loads induction machine ship auxiliary machines ship’s power system |
| url | https://hrcak.srce.hr/file/464592 |
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