Proposal of Low-Speed Sensorless Control of IPMSM Using a Two-Interval Six-Segment High-Frequency Injection Method with DC-Link Current Sensing
This paper proposes a modification to existing saliency-based, sensorless control strategy for interior permanent magnet synchronous motors. The proposed approach leverages a two-interval, six-segment high-frequency voltage signal injection technique. It aims to improve rotor position and speed esti...
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| Language: | English |
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MDPI AG
2024-11-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/17/22/5789 |
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| author | Daniel Konvicny Pavol Makys Alex Franko |
| author_facet | Daniel Konvicny Pavol Makys Alex Franko |
| author_sort | Daniel Konvicny |
| collection | DOAJ |
| description | This paper proposes a modification to existing saliency-based, sensorless control strategy for interior permanent magnet synchronous motors. The proposed approach leverages a two-interval, six-segment high-frequency voltage signal injection technique. It aims to improve rotor position and speed estimation accuracy when utilizing a single current sensor positioned in the inverter’s DC-bus circuit. The key innovation lies in modifying both the high-frequency signal injection and demodulation processes to address challenges in accurate phase current reconstruction and rotor position estimation, at low and zero speeds. A significant modification to the traditional high-frequency voltage signal injection method is introduced, which involves splitting the signal injection and the field-oriented control algorithm into two distinct sampling and switching periods. This approach ensures that no portion of the injected voltage space vector falls into the immeasurable region of space vector modulation, which could otherwise compromise current measurements. The dual-period structure, termed the two-interval six-segment high-frequency injection, allows for more precise current measurement during the signal injection period while maintaining optimal motor control during the field-oriented control period. Furthermore, this paper explores a different demodulation technique that improves the estimation of rotor position and speed. By employing a synchronous filter in combination with a phase-locked loop, the proposed method enhances the robustness of the system against noise and inaccuracies typically encountered in phase current reconstruction. The effectiveness of the proposed modifications is demonstrated through comprehensive simulation results. These results confirm that the enhanced method offers more reliable rotor position and speed estimates compared to the existing sensorless technique, making it particularly suitable for applications requiring high precision in motor control. |
| format | Article |
| id | doaj-art-b62d29dd7ed64b15b9bf2d41d3e1c374 |
| institution | Kabale University |
| issn | 1996-1073 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj-art-b62d29dd7ed64b15b9bf2d41d3e1c3742024-11-26T18:02:48ZengMDPI AGEnergies1996-10732024-11-011722578910.3390/en17225789Proposal of Low-Speed Sensorless Control of IPMSM Using a Two-Interval Six-Segment High-Frequency Injection Method with DC-Link Current SensingDaniel Konvicny0Pavol Makys1Alex Franko2Department of Power Systems and Electric Drives, University of Zilina, 010 01 Zilina, SlovakiaDepartment of Power Systems and Electric Drives, University of Zilina, 010 01 Zilina, SlovakiaDepartment of Power Systems and Electric Drives, University of Zilina, 010 01 Zilina, SlovakiaThis paper proposes a modification to existing saliency-based, sensorless control strategy for interior permanent magnet synchronous motors. The proposed approach leverages a two-interval, six-segment high-frequency voltage signal injection technique. It aims to improve rotor position and speed estimation accuracy when utilizing a single current sensor positioned in the inverter’s DC-bus circuit. The key innovation lies in modifying both the high-frequency signal injection and demodulation processes to address challenges in accurate phase current reconstruction and rotor position estimation, at low and zero speeds. A significant modification to the traditional high-frequency voltage signal injection method is introduced, which involves splitting the signal injection and the field-oriented control algorithm into two distinct sampling and switching periods. This approach ensures that no portion of the injected voltage space vector falls into the immeasurable region of space vector modulation, which could otherwise compromise current measurements. The dual-period structure, termed the two-interval six-segment high-frequency injection, allows for more precise current measurement during the signal injection period while maintaining optimal motor control during the field-oriented control period. Furthermore, this paper explores a different demodulation technique that improves the estimation of rotor position and speed. By employing a synchronous filter in combination with a phase-locked loop, the proposed method enhances the robustness of the system against noise and inaccuracies typically encountered in phase current reconstruction. The effectiveness of the proposed modifications is demonstrated through comprehensive simulation results. These results confirm that the enhanced method offers more reliable rotor position and speed estimates compared to the existing sensorless technique, making it particularly suitable for applications requiring high precision in motor control.https://www.mdpi.com/1996-1073/17/22/5789sensorless controlsaliency basedinterior permanent magnet synchronous motorhigh-frequency injectiondemodulationsingle shunt |
| spellingShingle | Daniel Konvicny Pavol Makys Alex Franko Proposal of Low-Speed Sensorless Control of IPMSM Using a Two-Interval Six-Segment High-Frequency Injection Method with DC-Link Current Sensing Energies sensorless control saliency based interior permanent magnet synchronous motor high-frequency injection demodulation single shunt |
| title | Proposal of Low-Speed Sensorless Control of IPMSM Using a Two-Interval Six-Segment High-Frequency Injection Method with DC-Link Current Sensing |
| title_full | Proposal of Low-Speed Sensorless Control of IPMSM Using a Two-Interval Six-Segment High-Frequency Injection Method with DC-Link Current Sensing |
| title_fullStr | Proposal of Low-Speed Sensorless Control of IPMSM Using a Two-Interval Six-Segment High-Frequency Injection Method with DC-Link Current Sensing |
| title_full_unstemmed | Proposal of Low-Speed Sensorless Control of IPMSM Using a Two-Interval Six-Segment High-Frequency Injection Method with DC-Link Current Sensing |
| title_short | Proposal of Low-Speed Sensorless Control of IPMSM Using a Two-Interval Six-Segment High-Frequency Injection Method with DC-Link Current Sensing |
| title_sort | proposal of low speed sensorless control of ipmsm using a two interval six segment high frequency injection method with dc link current sensing |
| topic | sensorless control saliency based interior permanent magnet synchronous motor high-frequency injection demodulation single shunt |
| url | https://www.mdpi.com/1996-1073/17/22/5789 |
| work_keys_str_mv | AT danielkonvicny proposaloflowspeedsensorlesscontrolofipmsmusingatwointervalsixsegmenthighfrequencyinjectionmethodwithdclinkcurrentsensing AT pavolmakys proposaloflowspeedsensorlesscontrolofipmsmusingatwointervalsixsegmenthighfrequencyinjectionmethodwithdclinkcurrentsensing AT alexfranko proposaloflowspeedsensorlesscontrolofipmsmusingatwointervalsixsegmenthighfrequencyinjectionmethodwithdclinkcurrentsensing |