Improved harmonic performance of cascaded H-Bridge converters with thermal control
Among multilevel converter topologies, the cascaded H-bridge converter (CHB) is one suitable solution for multiple applications such as flexible ac transmission systems and motor drives. CHB presents a natural high modularity because it is formed by the serial connection of H-bridges. This paper dea...
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| Language: | English |
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Institute of Electrical and Electronics Engineers
2018
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| Online Access: | https://eprints.nottingham.ac.uk/55266/ |
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| author | Monopoli, Vito Giuseppe Marquez, Abraham Leon, Jose I. Ko, Youngjong Buticchi, Giampaolo Liserre, Marco |
| author_facet | Monopoli, Vito Giuseppe Marquez, Abraham Leon, Jose I. Ko, Youngjong Buticchi, Giampaolo Liserre, Marco |
| author_sort | Monopoli, Vito Giuseppe |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Among multilevel converter topologies, the cascaded H-bridge converter (CHB) is one suitable solution for multiple applications such as flexible ac transmission systems and motor drives. CHB presents a natural high modularity because it is formed by the serial connection of H-bridges. This paper deals with a CHB where the cells do not have the same aging because the maintenance during the years of operation forces to replace some damaged cells of the converter with new or repaired ones. A method based on clamping one power cell can be used to reduce the power losses of that cell reducing its temperature and increasing its lifetime. However, clamping one cell of the CHB introduces high harmonic distortion around twice the carrier frequency due to the CHB unbalanced operation when a conventional phase-shifted PWM is applied. A deep harmonic distortion analysis of the CHB output voltage with thermal control based on clamping one cell is presented. Using this analysis, the harmonic distortion at twice the carrier frequency is eliminated applying a non-conventional phase-shifted PWM where the angles between the carriers of consecutive power cells are modified. Experimental results show how the thermal control applying the clamping of a power cell is achieved whilst the harmonic distortion around twice the carrier frequency is eliminated. |
| first_indexed | 2025-11-14T20:30:54Z |
| format | Article |
| id | nottingham-55266 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T20:30:54Z |
| publishDate | 2018 |
| publisher | Institute of Electrical and Electronics Engineers |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-552662018-10-11T09:02:01Z https://eprints.nottingham.ac.uk/55266/ Improved harmonic performance of cascaded H-Bridge converters with thermal control Monopoli, Vito Giuseppe Marquez, Abraham Leon, Jose I. Ko, Youngjong Buticchi, Giampaolo Liserre, Marco Among multilevel converter topologies, the cascaded H-bridge converter (CHB) is one suitable solution for multiple applications such as flexible ac transmission systems and motor drives. CHB presents a natural high modularity because it is formed by the serial connection of H-bridges. This paper deals with a CHB where the cells do not have the same aging because the maintenance during the years of operation forces to replace some damaged cells of the converter with new or repaired ones. A method based on clamping one power cell can be used to reduce the power losses of that cell reducing its temperature and increasing its lifetime. However, clamping one cell of the CHB introduces high harmonic distortion around twice the carrier frequency due to the CHB unbalanced operation when a conventional phase-shifted PWM is applied. A deep harmonic distortion analysis of the CHB output voltage with thermal control based on clamping one cell is presented. Using this analysis, the harmonic distortion at twice the carrier frequency is eliminated applying a non-conventional phase-shifted PWM where the angles between the carriers of consecutive power cells are modified. Experimental results show how the thermal control applying the clamping of a power cell is achieved whilst the harmonic distortion around twice the carrier frequency is eliminated. Institute of Electrical and Electronics Engineers 2018-09-13 Article PeerReviewed application/pdf en https://eprints.nottingham.ac.uk/55266/1/improved.pdf Monopoli, Vito Giuseppe, Marquez, Abraham, Leon, Jose I., Ko, Youngjong, Buticchi, Giampaolo and Liserre, Marco (2018) Improved harmonic performance of cascaded H-Bridge converters with thermal control. IEEE Transactions on Industrial Electronics . p. 1. ISSN 1557-9948 Harmonic analysis; Clamps; Aging; Pulse width modulation;Thermal stresses; Topology https://ieeexplore.ieee.org/document/8464672 10.1109/TIE.2018.2868304 10.1109/TIE.2018.2868304 10.1109/TIE.2018.2868304 |
| spellingShingle | Harmonic analysis; Clamps; Aging; Pulse width modulation;Thermal stresses; Topology Monopoli, Vito Giuseppe Marquez, Abraham Leon, Jose I. Ko, Youngjong Buticchi, Giampaolo Liserre, Marco Improved harmonic performance of cascaded H-Bridge converters with thermal control |
| title | Improved harmonic performance of cascaded H-Bridge converters with thermal control |
| title_full | Improved harmonic performance of cascaded H-Bridge converters with thermal control |
| title_fullStr | Improved harmonic performance of cascaded H-Bridge converters with thermal control |
| title_full_unstemmed | Improved harmonic performance of cascaded H-Bridge converters with thermal control |
| title_short | Improved harmonic performance of cascaded H-Bridge converters with thermal control |
| title_sort | improved harmonic performance of cascaded h-bridge converters with thermal control |
| topic | Harmonic analysis; Clamps; Aging; Pulse width modulation;Thermal stresses; Topology |
| url | https://eprints.nottingham.ac.uk/55266/ https://eprints.nottingham.ac.uk/55266/ https://eprints.nottingham.ac.uk/55266/ |