PMSM Position Sensorless Control Based on Improved Second-Order SOIFO
Due to detection errors, motor parameter deviations, and other uncertainties, traditional motor flux estimation models suffer from the complications of DC bias and high-order harmonics. To address these issues, two flux observers, the second-order generalized integrator flux observer (SOIFO) and the...
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MDPI AG
2025-03-01
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| Series: | World Electric Vehicle Journal |
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| Online Access: | https://www.mdpi.com/2032-6653/16/3/182 |
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| author | Ge Song Hongyu Ni Wenyuan Wang Wenxu Yan |
| author_facet | Ge Song Hongyu Ni Wenyuan Wang Wenxu Yan |
| author_sort | Ge Song |
| collection | DOAJ |
| description | Due to detection errors, motor parameter deviations, and other uncertainties, traditional motor flux estimation models suffer from the complications of DC bias and high-order harmonics. To address these issues, two flux observers, the second-order generalized integrator flux observer (SOIFO) and the second-order SOIFO, are designed for position sensorless control of permanent magnet synchronous motors (PMSMs). The position sensorless control of PMSMs based on an improved second-order SOIFO is proposed in this paper. The proposed method enhances the frequency-locked loop (FLL) in the observer by introducing a double-axis frequency-locked loop (DFLL), which improves the dynamic performance and disturbance rejection capability of the flux observer. By replacing FLL with DFLL for angular frequency estimation, the method effectively eliminates second-harmonic interference while reducing estimation delays, leading to faster and more accurate rotor position estimation in the second-order SOIFO. Additionally, the improved observer demonstrates enhanced robustness against disturbances, ensuring more stable position sensorless control. The effectiveness of the proposed approach is validated through both simulations and experimental comparisons. |
| format | Article |
| id | doaj-art-413eecaa19d7480b976f82fe3fa66807 |
| institution | OA Journals |
| issn | 2032-6653 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | World Electric Vehicle Journal |
| spelling | doaj-art-413eecaa19d7480b976f82fe3fa668072025-08-20T01:50:07ZengMDPI AGWorld Electric Vehicle Journal2032-66532025-03-0116318210.3390/wevj16030182PMSM Position Sensorless Control Based on Improved Second-Order SOIFOGe Song0Hongyu Ni1Wenyuan Wang2Wenxu Yan3School of Internet of Things, Jiangnan University, Wuxi 214122, ChinaState Grid Zhejiang Electric Power Co., Ltd., Shaoxing 214111, ChinaSchool of Internet of Things, Jiangnan University, Wuxi 214122, ChinaSchool of Internet of Things, Jiangnan University, Wuxi 214122, ChinaDue to detection errors, motor parameter deviations, and other uncertainties, traditional motor flux estimation models suffer from the complications of DC bias and high-order harmonics. To address these issues, two flux observers, the second-order generalized integrator flux observer (SOIFO) and the second-order SOIFO, are designed for position sensorless control of permanent magnet synchronous motors (PMSMs). The position sensorless control of PMSMs based on an improved second-order SOIFO is proposed in this paper. The proposed method enhances the frequency-locked loop (FLL) in the observer by introducing a double-axis frequency-locked loop (DFLL), which improves the dynamic performance and disturbance rejection capability of the flux observer. By replacing FLL with DFLL for angular frequency estimation, the method effectively eliminates second-harmonic interference while reducing estimation delays, leading to faster and more accurate rotor position estimation in the second-order SOIFO. Additionally, the improved observer demonstrates enhanced robustness against disturbances, ensuring more stable position sensorless control. The effectiveness of the proposed approach is validated through both simulations and experimental comparisons.https://www.mdpi.com/2032-6653/16/3/182permanent magnet synchronous motorposition sensorless controlfrequency-locked loopsecond-order SOIFO |
| spellingShingle | Ge Song Hongyu Ni Wenyuan Wang Wenxu Yan PMSM Position Sensorless Control Based on Improved Second-Order SOIFO World Electric Vehicle Journal permanent magnet synchronous motor position sensorless control frequency-locked loop second-order SOIFO |
| title | PMSM Position Sensorless Control Based on Improved Second-Order SOIFO |
| title_full | PMSM Position Sensorless Control Based on Improved Second-Order SOIFO |
| title_fullStr | PMSM Position Sensorless Control Based on Improved Second-Order SOIFO |
| title_full_unstemmed | PMSM Position Sensorless Control Based on Improved Second-Order SOIFO |
| title_short | PMSM Position Sensorless Control Based on Improved Second-Order SOIFO |
| title_sort | pmsm position sensorless control based on improved second order soifo |
| topic | permanent magnet synchronous motor position sensorless control frequency-locked loop second-order SOIFO |
| url | https://www.mdpi.com/2032-6653/16/3/182 |
| work_keys_str_mv | AT gesong pmsmpositionsensorlesscontrolbasedonimprovedsecondordersoifo AT hongyuni pmsmpositionsensorlesscontrolbasedonimprovedsecondordersoifo AT wenyuanwang pmsmpositionsensorlesscontrolbasedonimprovedsecondordersoifo AT wenxuyan pmsmpositionsensorlesscontrolbasedonimprovedsecondordersoifo |