Optimization of a Cascaded H-Bridge Inverter for Electric Vehicle Applications Including Cost Consideration
This paper presents a method to find the optimal configuration for an electric vehicle energy storage system using a cascaded H-bridge (CHB) inverter. CHB multilevel inverters enable a better utilization of the battery pack, because cells/modules with manufacturing tolerances in terms of capacity ca...
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-11-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/12/22/4272 |
| _version_ | 1798042209943027712 |
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| author | Felix Roemer Massab Ahmad Fengqi Chang Markus Lienkamp |
| author_facet | Felix Roemer Massab Ahmad Fengqi Chang Markus Lienkamp |
| author_sort | Felix Roemer |
| collection | DOAJ |
| description | This paper presents a method to find the optimal configuration for an electric vehicle energy storage system using a cascaded H-bridge (CHB) inverter. CHB multilevel inverters enable a better utilization of the battery pack, because cells/modules with manufacturing tolerances in terms of capacity can be selectively discharged instead of being passively balanced by discharging them over resistors. The balancing algorithms have been investigated in many studies for the CHB topology. However, it has not yet been investigated to which extend a conventional pack can be modularized in a CHB configuration. Therefore, this paper explores different configurations by simulating different switch models, switch configurations, and number of levels for a CHB inverter along with a reference load model to find the optimal design of the system. The configuration is also considered from an economically point of view, as the most efficient solution might not be cost-effective to be installed in a common production vehicle. It is found that four modules per phase give the best compromise between efficiency and costs. Paralleling smaller switches should be preferred over the usage of fewer, larger switches. Moreover, selecting specific existing components results in higher savings compared to theoretical optimal components. |
| first_indexed | 2024-04-11T22:32:17Z |
| format | Article |
| id | doaj.art-a1fa4a339d9e4a8585e65e1b14765617 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-11T22:32:17Z |
| publishDate | 2019-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-a1fa4a339d9e4a8585e65e1b147656172022-12-22T03:59:22ZengMDPI AGEnergies1996-10732019-11-011222427210.3390/en12224272en12224272Optimization of a Cascaded H-Bridge Inverter for Electric Vehicle Applications Including Cost ConsiderationFelix Roemer0Massab Ahmad1Fengqi Chang2Markus Lienkamp3TUM CREATE Ltd., 1 CREATE Way, #10-02 CREATE Tower, Singapore 138602, SingaporeTUM CREATE Ltd., 1 CREATE Way, #10-02 CREATE Tower, Singapore 138602, SingaporeTUM CREATE Ltd., 1 CREATE Way, #10-02 CREATE Tower, Singapore 138602, SingaporeInstitute of Automotive Technology, Technical University of Munich, Boltzmannstr. 15, 85748 Garching, GermanyThis paper presents a method to find the optimal configuration for an electric vehicle energy storage system using a cascaded H-bridge (CHB) inverter. CHB multilevel inverters enable a better utilization of the battery pack, because cells/modules with manufacturing tolerances in terms of capacity can be selectively discharged instead of being passively balanced by discharging them over resistors. The balancing algorithms have been investigated in many studies for the CHB topology. However, it has not yet been investigated to which extend a conventional pack can be modularized in a CHB configuration. Therefore, this paper explores different configurations by simulating different switch models, switch configurations, and number of levels for a CHB inverter along with a reference load model to find the optimal design of the system. The configuration is also considered from an economically point of view, as the most efficient solution might not be cost-effective to be installed in a common production vehicle. It is found that four modules per phase give the best compromise between efficiency and costs. Paralleling smaller switches should be preferred over the usage of fewer, larger switches. Moreover, selecting specific existing components results in higher savings compared to theoretical optimal components.https://www.mdpi.com/1996-1073/12/22/4272cascaded h-bridge inverterbattery balancingbattery toleranceselectric vehiclescost efficient inverter |
| spellingShingle | Felix Roemer Massab Ahmad Fengqi Chang Markus Lienkamp Optimization of a Cascaded H-Bridge Inverter for Electric Vehicle Applications Including Cost Consideration Energies cascaded h-bridge inverter battery balancing battery tolerances electric vehicles cost efficient inverter |
| title | Optimization of a Cascaded H-Bridge Inverter for Electric Vehicle Applications Including Cost Consideration |
| title_full | Optimization of a Cascaded H-Bridge Inverter for Electric Vehicle Applications Including Cost Consideration |
| title_fullStr | Optimization of a Cascaded H-Bridge Inverter for Electric Vehicle Applications Including Cost Consideration |
| title_full_unstemmed | Optimization of a Cascaded H-Bridge Inverter for Electric Vehicle Applications Including Cost Consideration |
| title_short | Optimization of a Cascaded H-Bridge Inverter for Electric Vehicle Applications Including Cost Consideration |
| title_sort | optimization of a cascaded h bridge inverter for electric vehicle applications including cost consideration |
| topic | cascaded h-bridge inverter battery balancing battery tolerances electric vehicles cost efficient inverter |
| url | https://www.mdpi.com/1996-1073/12/22/4272 |
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