Submodule power losses balancing algorithms for the modular multilevel converter
Tolerance and component aging can cause signif¬icant differences in the capacitance values of the submodules (SMs) in a modular multilevel converter (MMC). Depending on the modulation technique, capacitance mismatches may produce uneven switching transitions of the SMs, hence imbalances in the power...
| Main Authors: | , , , , , , |
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| Format: | Conference or Workshop Item |
| Published: |
2016
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| Subjects: | |
| Online Access: | https://eprints.nottingham.ac.uk/40389/ |
| _version_ | 1848796044946571264 |
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| author | Picas, R. Pou, J. Zaragoza, J. Watson, Alan James Konstantinou, G. Ceballos, S. Clare, Jon C. |
| author_facet | Picas, R. Pou, J. Zaragoza, J. Watson, Alan James Konstantinou, G. Ceballos, S. Clare, Jon C. |
| author_sort | Picas, R. |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Tolerance and component aging can cause signif¬icant differences in the capacitance values of the submodules (SMs) in a modular multilevel converter (MMC). Depending on the modulation technique, capacitance mismatches may produce uneven switching transitions of the SMs, hence imbalances in the power losses that can lead to reliability problems. In this paper, a new algorithm that helps to achieve evenly distributed switching and conduction losses within the converter SMs is presented. The proposed algorithm is based on a modification of the common voltage balancing algorithms, balancing a weighted function of voltage and losses. Even distribution of power losses is achieved at the cost of slightly increasing the capacitor voltage ripples. The effectiveness of the strategy has been demonstrated by simulation results of a high-power grid-connected MMC. |
| first_indexed | 2025-11-14T19:41:44Z |
| format | Conference or Workshop Item |
| id | nottingham-40389 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:41:44Z |
| publishDate | 2016 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-403892020-05-04T18:15:24Z https://eprints.nottingham.ac.uk/40389/ Submodule power losses balancing algorithms for the modular multilevel converter Picas, R. Pou, J. Zaragoza, J. Watson, Alan James Konstantinou, G. Ceballos, S. Clare, Jon C. Tolerance and component aging can cause signif¬icant differences in the capacitance values of the submodules (SMs) in a modular multilevel converter (MMC). Depending on the modulation technique, capacitance mismatches may produce uneven switching transitions of the SMs, hence imbalances in the power losses that can lead to reliability problems. In this paper, a new algorithm that helps to achieve evenly distributed switching and conduction losses within the converter SMs is presented. The proposed algorithm is based on a modification of the common voltage balancing algorithms, balancing a weighted function of voltage and losses. Even distribution of power losses is achieved at the cost of slightly increasing the capacitor voltage ripples. The effectiveness of the strategy has been demonstrated by simulation results of a high-power grid-connected MMC. 2016-10-26 Conference or Workshop Item PeerReviewed Picas, R., Pou, J., Zaragoza, J., Watson, Alan James, Konstantinou, G., Ceballos, S. and Clare, Jon C. (2016) Submodule power losses balancing algorithms for the modular multilevel converter. In: 42nd Annual Conference of IEEE Industrial Electronics Society (IECON 2016), 24-27 Oct 2016, Florence, Italy. Modular multilevel converter Power losses Capacitor voltage ripples Reliability improvement http://ieeexplore.ieee.org/document/7793381/ |
| spellingShingle | Modular multilevel converter Power losses Capacitor voltage ripples Reliability improvement Picas, R. Pou, J. Zaragoza, J. Watson, Alan James Konstantinou, G. Ceballos, S. Clare, Jon C. Submodule power losses balancing algorithms for the modular multilevel converter |
| title | Submodule power losses balancing algorithms for the modular multilevel converter |
| title_full | Submodule power losses balancing algorithms for the modular multilevel converter |
| title_fullStr | Submodule power losses balancing algorithms for the modular multilevel converter |
| title_full_unstemmed | Submodule power losses balancing algorithms for the modular multilevel converter |
| title_short | Submodule power losses balancing algorithms for the modular multilevel converter |
| title_sort | submodule power losses balancing algorithms for the modular multilevel converter |
| topic | Modular multilevel converter Power losses Capacitor voltage ripples Reliability improvement |
| url | https://eprints.nottingham.ac.uk/40389/ https://eprints.nottingham.ac.uk/40389/ |