Characteristic Analysis and Control of a Hybrid Excitation Linear Eddy Current Brake
In this paper, a novel hybrid excitation linear eddy current brake is presented as a braking system for high-speed road and rail vehicles. The presence of the permanent magnets (PMs), whose flux lines in the primary core are oppositely directed with respect to the flux lines by the excitation windi...
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| Format: | Article |
| Language: | English |
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MDPI AG
2015-07-01
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| Series: | Energies |
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| Online Access: | http://www.mdpi.com/1996-1073/8/7/7441 |
| _version_ | 1798043082048929792 |
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| author | Baoquan Kou Yinxi Jin Lu Zhang He Zhang |
| author_facet | Baoquan Kou Yinxi Jin Lu Zhang He Zhang |
| author_sort | Baoquan Kou |
| collection | DOAJ |
| description | In this paper, a novel hybrid excitation linear eddy current brake is presented as a braking system for high-speed road and rail vehicles. The presence of the permanent magnets (PMs), whose flux lines in the primary core are oppositely directed with respect to the flux lines by the excitation windings, has the effect of mitigating the saturation of the iron in the teeth of the primary core. This allows the brake to be fed with more intense currents, improving the braking force. First, using the magnetic equivalent circuit method and the layer theory approach, the analytical model of the hybrid excitation linear eddy current brake was developed, which can account for the saturation effects occurring in the iron parts. The saturation effects make the design and control of eddy current brakes more difficult. Second, the relationship between the braking force characteristics and the design parameters were analyzed to provide useful information to the designers of eddy current brakes. Then, the controller of the hybrid excitation linear eddy current brake was designed to control the amplitude of the braking force. Finally, experimental measurements were conducted to verify the validity of the theoretical analysis. |
| first_indexed | 2024-04-11T22:44:36Z |
| format | Article |
| id | doaj.art-c6db7238c1ac434fb655d5e4dbdf94c2 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-11T22:44:36Z |
| publishDate | 2015-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-c6db7238c1ac434fb655d5e4dbdf94c22022-12-22T03:58:48ZengMDPI AGEnergies1996-10732015-07-01877441746410.3390/en8077441en8077441Characteristic Analysis and Control of a Hybrid Excitation Linear Eddy Current BrakeBaoquan Kou0Yinxi Jin1Lu Zhang2He Zhang3Department of Electrical Engineering, Harbin Institute of Technology, Harbin 150080, ChinaDepartment of Electrical Engineering, Harbin Institute of Technology, Harbin 150080, ChinaDepartment of Electrical Engineering, Harbin Institute of Technology, Harbin 150080, ChinaDepartment of Electrical Engineering, Harbin Institute of Technology, Harbin 150080, ChinaIn this paper, a novel hybrid excitation linear eddy current brake is presented as a braking system for high-speed road and rail vehicles. The presence of the permanent magnets (PMs), whose flux lines in the primary core are oppositely directed with respect to the flux lines by the excitation windings, has the effect of mitigating the saturation of the iron in the teeth of the primary core. This allows the brake to be fed with more intense currents, improving the braking force. First, using the magnetic equivalent circuit method and the layer theory approach, the analytical model of the hybrid excitation linear eddy current brake was developed, which can account for the saturation effects occurring in the iron parts. The saturation effects make the design and control of eddy current brakes more difficult. Second, the relationship between the braking force characteristics and the design parameters were analyzed to provide useful information to the designers of eddy current brakes. Then, the controller of the hybrid excitation linear eddy current brake was designed to control the amplitude of the braking force. Finally, experimental measurements were conducted to verify the validity of the theoretical analysis.http://www.mdpi.com/1996-1073/8/7/7441eddy current brakehybrid excitationfinite element methodthree-level pulse-width modulation (PWM) scheme |
| spellingShingle | Baoquan Kou Yinxi Jin Lu Zhang He Zhang Characteristic Analysis and Control of a Hybrid Excitation Linear Eddy Current Brake Energies eddy current brake hybrid excitation finite element method three-level pulse-width modulation (PWM) scheme |
| title | Characteristic Analysis and Control of a Hybrid Excitation Linear Eddy Current Brake |
| title_full | Characteristic Analysis and Control of a Hybrid Excitation Linear Eddy Current Brake |
| title_fullStr | Characteristic Analysis and Control of a Hybrid Excitation Linear Eddy Current Brake |
| title_full_unstemmed | Characteristic Analysis and Control of a Hybrid Excitation Linear Eddy Current Brake |
| title_short | Characteristic Analysis and Control of a Hybrid Excitation Linear Eddy Current Brake |
| title_sort | characteristic analysis and control of a hybrid excitation linear eddy current brake |
| topic | eddy current brake hybrid excitation finite element method three-level pulse-width modulation (PWM) scheme |
| url | http://www.mdpi.com/1996-1073/8/7/7441 |
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