Accuracy improvement of thermal distribution analysis of 10 kV dry-type iron-core reactor
Hotspot temperature is a key factor affecting the safe operation for power equipment like reactor. The different distribution of the magnetic field in the iron-core and windings results in non-uniform distribution of the electromagnetic losses. However, the influence of non-uniform losses on the tem...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2024-12-01
|
| Series: | Case Studies in Thermal Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X24015855 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850112204721881088 |
|---|---|
| author | Caibo Liao Bang Liu Kai Li Wanqing Wang |
| author_facet | Caibo Liao Bang Liu Kai Li Wanqing Wang |
| author_sort | Caibo Liao |
| collection | DOAJ |
| description | Hotspot temperature is a key factor affecting the safe operation for power equipment like reactor. The different distribution of the magnetic field in the iron-core and windings results in non-uniform distribution of the electromagnetic losses. However, the influence of non-uniform losses on the temperature distribution is rarely discussed in the previous studies. In this paper, the thermal behavior of 10 kV dry-type iron-core reactor considering the influence of non-uniform losses is studied to obtain more accurate simulation results. First, the winding model with separate coils is used instead of traditional cylinder structure, and the loss of each coil is obtained by equivalent calculation method. Then, the thermal characteristics of reactor with different winding models and loss distributions are analyzed. In addition, the effect of the above factors on windings temperature distribution is discussed. Finally, the simulation results are compared with the test results of 10 kV dry-type reactor in 110 kV indoor substation. The result indicates the simulation result considering the non-uniform losses distribution is closer to the measured result. The temperature distribution of windings in vertical direction is more consistent with the real situation as well. |
| format | Article |
| id | doaj-art-bc136cf452e843b2859511d6492b007b |
| institution | OA Journals |
| issn | 2214-157X |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj-art-bc136cf452e843b2859511d6492b007b2025-08-20T02:37:27ZengElsevierCase Studies in Thermal Engineering2214-157X2024-12-016410555410.1016/j.csite.2024.105554Accuracy improvement of thermal distribution analysis of 10 kV dry-type iron-core reactorCaibo Liao0Bang Liu1Kai Li2Wanqing Wang3Department of Energy and Electrical Engineering, School of Information Engineering, Nanchang University, Nanchang, 330031, China; Corresponding author.Department of Energy and Electrical Engineering, School of Information Engineering, Nanchang University, Nanchang, 330031, ChinaState Grid Sichuan Ganzi Electric Power Co., Ltd., Ganzi, 627750, ChinaDepartment of Energy and Electrical Engineering, School of Information Engineering, Nanchang University, Nanchang, 330031, ChinaHotspot temperature is a key factor affecting the safe operation for power equipment like reactor. The different distribution of the magnetic field in the iron-core and windings results in non-uniform distribution of the electromagnetic losses. However, the influence of non-uniform losses on the temperature distribution is rarely discussed in the previous studies. In this paper, the thermal behavior of 10 kV dry-type iron-core reactor considering the influence of non-uniform losses is studied to obtain more accurate simulation results. First, the winding model with separate coils is used instead of traditional cylinder structure, and the loss of each coil is obtained by equivalent calculation method. Then, the thermal characteristics of reactor with different winding models and loss distributions are analyzed. In addition, the effect of the above factors on windings temperature distribution is discussed. Finally, the simulation results are compared with the test results of 10 kV dry-type reactor in 110 kV indoor substation. The result indicates the simulation result considering the non-uniform losses distribution is closer to the measured result. The temperature distribution of windings in vertical direction is more consistent with the real situation as well.http://www.sciencedirect.com/science/article/pii/S2214157X24015855Dry-type iron-core reactorTemperature distributionThermal analysisHotspot temperatureEddy current lossMulti-physical field coupling |
| spellingShingle | Caibo Liao Bang Liu Kai Li Wanqing Wang Accuracy improvement of thermal distribution analysis of 10 kV dry-type iron-core reactor Case Studies in Thermal Engineering Dry-type iron-core reactor Temperature distribution Thermal analysis Hotspot temperature Eddy current loss Multi-physical field coupling |
| title | Accuracy improvement of thermal distribution analysis of 10 kV dry-type iron-core reactor |
| title_full | Accuracy improvement of thermal distribution analysis of 10 kV dry-type iron-core reactor |
| title_fullStr | Accuracy improvement of thermal distribution analysis of 10 kV dry-type iron-core reactor |
| title_full_unstemmed | Accuracy improvement of thermal distribution analysis of 10 kV dry-type iron-core reactor |
| title_short | Accuracy improvement of thermal distribution analysis of 10 kV dry-type iron-core reactor |
| title_sort | accuracy improvement of thermal distribution analysis of 10 kv dry type iron core reactor |
| topic | Dry-type iron-core reactor Temperature distribution Thermal analysis Hotspot temperature Eddy current loss Multi-physical field coupling |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X24015855 |
| work_keys_str_mv | AT caiboliao accuracyimprovementofthermaldistributionanalysisof10kvdrytypeironcorereactor AT bangliu accuracyimprovementofthermaldistributionanalysisof10kvdrytypeironcorereactor AT kaili accuracyimprovementofthermaldistributionanalysisof10kvdrytypeironcorereactor AT wanqingwang accuracyimprovementofthermaldistributionanalysisof10kvdrytypeironcorereactor |