High-Switching-Frequency SiC Power Conversion Systems with Improved Finite Control Set Method Prediction Control
With the development of power conversion systems or bidirectional grid-connected inverters characterized by high DC voltage, high efficiency, and high-power density, high-switching-frequency SiC power switches are being widely used, and these require a short computational time of control algorithm....
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| Format: | Article |
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MDPI AG
2024-09-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/17/18/4601 |
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| author | Yibiao Fan Lixia Tong Yingjie Lu Xiaowei Cai Zhihe Fu Xingkui Mao |
| author_facet | Yibiao Fan Lixia Tong Yingjie Lu Xiaowei Cai Zhihe Fu Xingkui Mao |
| author_sort | Yibiao Fan |
| collection | DOAJ |
| description | With the development of power conversion systems or bidirectional grid-connected inverters characterized by high DC voltage, high efficiency, and high-power density, high-switching-frequency SiC power switches are being widely used, and these require a short computational time of control algorithm. Based on the sector judgment of a space voltage vector and the midpoint potential control balancing of a DC bus, an improved finite control set method prediction control (FCS-MPC) method was proposed for a T-type three-level PCS. This improved FCS-MPC first judges the sector of the space voltage vector and locates the position of the corresponding large sector according to phase lock information; then, it analyzes the sampled voltage of the upper and lower bus capacitors to obtain the midpoint potential situation and selects appropriate small vectors based on the midpoint potential situation. This simple improved strategy can reduce the computational complexity of traditional MPC for rolling optimization, resulting in a reduction in the vectors from 27 to 8. A SiC-based 10 kW bidirectional PCS prototype verified the improved FCS-MPC, and the computational time was reduced about by 56% in comparison to traditional FCS-MPC. |
| format | Article |
| id | doaj-art-5189e93cb8b94e8cb128abc9b51e925e |
| institution | OA Journals |
| issn | 1996-1073 |
| language | English |
| publishDate | 2024-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj-art-5189e93cb8b94e8cb128abc9b51e925e2025-08-20T01:55:30ZengMDPI AGEnergies1996-10732024-09-011718460110.3390/en17184601High-Switching-Frequency SiC Power Conversion Systems with Improved Finite Control Set Method Prediction ControlYibiao Fan0Lixia Tong1Yingjie Lu2Xiaowei Cai3Zhihe Fu4Xingkui Mao5Physics, Mechanical and Electrical Engineering, Longyan University, Longyan 364012, ChinaInstitute for Testing of Industrial Products, Jiangxi General Institute of Testing and Certification, Nanchang 330052, ChinaCollege of Electrical Engineering and Automation, Fuzhou University, Fuzhou 350011, ChinaPhysics, Mechanical and Electrical Engineering, Longyan University, Longyan 364012, ChinaPhysics, Mechanical and Electrical Engineering, Longyan University, Longyan 364012, ChinaCollege of Electrical Engineering and Automation, Fuzhou University, Fuzhou 350011, ChinaWith the development of power conversion systems or bidirectional grid-connected inverters characterized by high DC voltage, high efficiency, and high-power density, high-switching-frequency SiC power switches are being widely used, and these require a short computational time of control algorithm. Based on the sector judgment of a space voltage vector and the midpoint potential control balancing of a DC bus, an improved finite control set method prediction control (FCS-MPC) method was proposed for a T-type three-level PCS. This improved FCS-MPC first judges the sector of the space voltage vector and locates the position of the corresponding large sector according to phase lock information; then, it analyzes the sampled voltage of the upper and lower bus capacitors to obtain the midpoint potential situation and selects appropriate small vectors based on the midpoint potential situation. This simple improved strategy can reduce the computational complexity of traditional MPC for rolling optimization, resulting in a reduction in the vectors from 27 to 8. A SiC-based 10 kW bidirectional PCS prototype verified the improved FCS-MPC, and the computational time was reduced about by 56% in comparison to traditional FCS-MPC.https://www.mdpi.com/1996-1073/17/18/4601bidirectional power conversion systemT-type three-level topologySiCFCS-MPC |
| spellingShingle | Yibiao Fan Lixia Tong Yingjie Lu Xiaowei Cai Zhihe Fu Xingkui Mao High-Switching-Frequency SiC Power Conversion Systems with Improved Finite Control Set Method Prediction Control Energies bidirectional power conversion system T-type three-level topology SiC FCS-MPC |
| title | High-Switching-Frequency SiC Power Conversion Systems with Improved Finite Control Set Method Prediction Control |
| title_full | High-Switching-Frequency SiC Power Conversion Systems with Improved Finite Control Set Method Prediction Control |
| title_fullStr | High-Switching-Frequency SiC Power Conversion Systems with Improved Finite Control Set Method Prediction Control |
| title_full_unstemmed | High-Switching-Frequency SiC Power Conversion Systems with Improved Finite Control Set Method Prediction Control |
| title_short | High-Switching-Frequency SiC Power Conversion Systems with Improved Finite Control Set Method Prediction Control |
| title_sort | high switching frequency sic power conversion systems with improved finite control set method prediction control |
| topic | bidirectional power conversion system T-type three-level topology SiC FCS-MPC |
| url | https://www.mdpi.com/1996-1073/17/18/4601 |
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