New Sensorless Vector Control System With High Load Capacity Based on Improved SMO and Improved FOO
In the existing sensorless vector control system of permanent magnet synchronous motor (PMSM), direct differential calculation or phase-locked loop (PLL) control is often used to estimate the rotor speed, but this method has some problems of weak load capacity and slow dynamic response. A new sensor...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2021-01-01
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| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/9374435/ |
| _version_ | 1819180874790338560 |
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| author | Wenqi Lu Dongyang Zheng Yujun Lu Kaiyuan Lu Liang Guo Weican Yan Jian Luo |
| author_facet | Wenqi Lu Dongyang Zheng Yujun Lu Kaiyuan Lu Liang Guo Weican Yan Jian Luo |
| author_sort | Wenqi Lu |
| collection | DOAJ |
| description | In the existing sensorless vector control system of permanent magnet synchronous motor (PMSM), direct differential calculation or phase-locked loop (PLL) control is often used to estimate the rotor speed, but this method has some problems of weak load capacity and slow dynamic response. A new sensorless vector control method based on an improved sliding mode observer (SMO) and improved full-order observer (FOO) is proposed in this paper. The cut-off frequency of the low-pass filter is designed as a function of speed, the back EMF is fed back into the stator current estimation mathematical model, and the adaptive rate of feedback gains coefficient is proposed for improving the traditional SMO. The disturbance feedback matrix is introduced for improving the traditional FOO, and the estimated load torque is feedforward compensated to the given end of the quadrature current. An integrated system of corresponding algorithms is established, a test platform is built. The experimental results show that the speed and load torque estimation performance of the improved observer is better than that of the traditional observer in the process of sudden load change. The sensorless vector control system based on the proposed observer has a high dynamic response, load capacity, and reliability. |
| first_indexed | 2024-12-22T22:21:17Z |
| format | Article |
| id | doaj.art-2f90e00af2764c8684fddf34643ca484 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-22T22:21:17Z |
| publishDate | 2021-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-2f90e00af2764c8684fddf34643ca4842022-12-21T18:10:40ZengIEEEIEEE Access2169-35362021-01-019407164072710.1109/ACCESS.2021.30650409374435New Sensorless Vector Control System With High Load Capacity Based on Improved SMO and Improved FOOWenqi Lu0https://orcid.org/0000-0003-1715-2150Dongyang Zheng1Yujun Lu2Kaiyuan Lu3https://orcid.org/0000-0003-4012-2611Liang Guo4Weican Yan5Jian Luo6Faculty of Mechanical Engineering and Automation, Zhejiang Sci-Tech University, Hangzhou, ChinaFaculty of Mechanical Engineering and Automation, Zhejiang Sci-Tech University, Hangzhou, ChinaFaculty of Mechanical Engineering and Automation, Zhejiang Sci-Tech University, Hangzhou, ChinaDepartment of Energy Technology, Aalborg University, Aalborg, DK-9220DenmarkFaculty of Mechanical Engineering and Automation, Zhejiang Sci-Tech University, Hangzhou, ChinaDepartment of Electrical Engineering, Zhejiang University, Hangzhou, ChinaMaider Medical Industrial Equipment Company Ltd., Taizhou, ChinaIn the existing sensorless vector control system of permanent magnet synchronous motor (PMSM), direct differential calculation or phase-locked loop (PLL) control is often used to estimate the rotor speed, but this method has some problems of weak load capacity and slow dynamic response. A new sensorless vector control method based on an improved sliding mode observer (SMO) and improved full-order observer (FOO) is proposed in this paper. The cut-off frequency of the low-pass filter is designed as a function of speed, the back EMF is fed back into the stator current estimation mathematical model, and the adaptive rate of feedback gains coefficient is proposed for improving the traditional SMO. The disturbance feedback matrix is introduced for improving the traditional FOO, and the estimated load torque is feedforward compensated to the given end of the quadrature current. An integrated system of corresponding algorithms is established, a test platform is built. The experimental results show that the speed and load torque estimation performance of the improved observer is better than that of the traditional observer in the process of sudden load change. The sensorless vector control system based on the proposed observer has a high dynamic response, load capacity, and reliability.https://ieeexplore.ieee.org/document/9374435/Sensorless vector control systemimproved sliding mode observer (SMO)improved full-order observer (FOO)load capacityreliability |
| spellingShingle | Wenqi Lu Dongyang Zheng Yujun Lu Kaiyuan Lu Liang Guo Weican Yan Jian Luo New Sensorless Vector Control System With High Load Capacity Based on Improved SMO and Improved FOO IEEE Access Sensorless vector control system improved sliding mode observer (SMO) improved full-order observer (FOO) load capacity reliability |
| title | New Sensorless Vector Control System With High Load Capacity Based on Improved SMO and Improved FOO |
| title_full | New Sensorless Vector Control System With High Load Capacity Based on Improved SMO and Improved FOO |
| title_fullStr | New Sensorless Vector Control System With High Load Capacity Based on Improved SMO and Improved FOO |
| title_full_unstemmed | New Sensorless Vector Control System With High Load Capacity Based on Improved SMO and Improved FOO |
| title_short | New Sensorless Vector Control System With High Load Capacity Based on Improved SMO and Improved FOO |
| title_sort | new sensorless vector control system with high load capacity based on improved smo and improved foo |
| topic | Sensorless vector control system improved sliding mode observer (SMO) improved full-order observer (FOO) load capacity reliability |
| url | https://ieeexplore.ieee.org/document/9374435/ |
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