Control of the modular multilevel matrix converter based on continuous control set model predictive control
The Modular Multilevel Matrix Converter (M3C) is an AC to AC power converter composed of 9 arms that has been proposed for high-power applications such as motor drive and wind energy conversion systems. Due to its complex nature, control of the M3C is usually divided into several sub-goals, and the...
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| Format: | Thesis (University of Nottingham only) |
| Language: | English |
| Published: |
2022
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| Online Access: | https://eprints.nottingham.ac.uk/69838/ |
| _version_ | 1848800588364513280 |
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| author | Urrutia-Ortiz, Matias A. |
| author_facet | Urrutia-Ortiz, Matias A. |
| author_sort | Urrutia-Ortiz, Matias A. |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | The Modular Multilevel Matrix Converter (M3C) is an AC to AC power converter composed of 9 arms that has been proposed for high-power applications such as motor drive and wind energy conversion systems. Due to its complex nature, control of the M3C is usually divided into several sub-goals, and the capacitor voltage regulation varies according to the operating mode, where two classifications are commonly used: Different Frequency Mode (DFM) and Equal Frequency Mode (EFM). EFM is more challenging because of the larger capacitor voltage oscillations that can be produced. In this work, a Continuous-Control-Set Model Predictive Control (CCS-MPC) for energy management and circulating current control of the M3C is proposed. A first MPC stage solves an equality-constrained quadratic programming problem, for which an optimal solution is analytically obtained. The result is a simple control law, which ensures good transient and steady performance in EFM/DFM. The second MPC stage regulates the circulating currents with an inequality-constrained quadratic programming problem. To solve the inherent optimisation problem associated with the second CCS-MPC, an active-set algorithm is implemented. Experimental and simulation results from a 27-cell M3C prototype validate the proposed strategy and show a good overall performance. |
| first_indexed | 2025-11-14T20:53:57Z |
| format | Thesis (University of Nottingham only) |
| id | nottingham-69838 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T20:53:57Z |
| publishDate | 2022 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-698382022-12-30T04:40:10Z https://eprints.nottingham.ac.uk/69838/ Control of the modular multilevel matrix converter based on continuous control set model predictive control Urrutia-Ortiz, Matias A. The Modular Multilevel Matrix Converter (M3C) is an AC to AC power converter composed of 9 arms that has been proposed for high-power applications such as motor drive and wind energy conversion systems. Due to its complex nature, control of the M3C is usually divided into several sub-goals, and the capacitor voltage regulation varies according to the operating mode, where two classifications are commonly used: Different Frequency Mode (DFM) and Equal Frequency Mode (EFM). EFM is more challenging because of the larger capacitor voltage oscillations that can be produced. In this work, a Continuous-Control-Set Model Predictive Control (CCS-MPC) for energy management and circulating current control of the M3C is proposed. A first MPC stage solves an equality-constrained quadratic programming problem, for which an optimal solution is analytically obtained. The result is a simple control law, which ensures good transient and steady performance in EFM/DFM. The second MPC stage regulates the circulating currents with an inequality-constrained quadratic programming problem. To solve the inherent optimisation problem associated with the second CCS-MPC, an active-set algorithm is implemented. Experimental and simulation results from a 27-cell M3C prototype validate the proposed strategy and show a good overall performance. 2022-12-30 Thesis (University of Nottingham only) NonPeerReviewed application/pdf en cc_by https://eprints.nottingham.ac.uk/69838/1/Thesis_UoN_final.pdf Urrutia-Ortiz, Matias A. (2022) Control of the modular multilevel matrix converter based on continuous control set model predictive control. PhD thesis, University of Nottingham. AC-to-AC converters; Predictive control |
| spellingShingle | AC-to-AC converters; Predictive control Urrutia-Ortiz, Matias A. Control of the modular multilevel matrix converter based on continuous control set model predictive control |
| title | Control of the modular multilevel matrix converter based on
continuous control set model predictive control |
| title_full | Control of the modular multilevel matrix converter based on
continuous control set model predictive control |
| title_fullStr | Control of the modular multilevel matrix converter based on
continuous control set model predictive control |
| title_full_unstemmed | Control of the modular multilevel matrix converter based on
continuous control set model predictive control |
| title_short | Control of the modular multilevel matrix converter based on
continuous control set model predictive control |
| title_sort | control of the modular multilevel matrix converter based on
continuous control set model predictive control |
| topic | AC-to-AC converters; Predictive control |
| url | https://eprints.nottingham.ac.uk/69838/ |