An asymmetric-square-wave voltage injection method for online inductance identification of PMSM under sensorless control
In this paper, an online inductance identification method for PMSM, which is embedded into the flux-estimation-based sensorless control, is proposed. By injecting a periodic voltage where a larger negative voltage lasts one switching cycle, and a smaller positive voltage lasts several switching cycl...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-05-01
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| Series: | Energy Reports |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352484722027299 |
| _version_ | 1797809839965995008 |
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| author | Yang Ge Weizhang Song |
| author_facet | Yang Ge Weizhang Song |
| author_sort | Yang Ge |
| collection | DOAJ |
| description | In this paper, an online inductance identification method for PMSM, which is embedded into the flux-estimation-based sensorless control, is proposed. By injecting a periodic voltage where a larger negative voltage lasts one switching cycle, and a smaller positive voltage lasts several switching cycles, the extra voltage equation is established. Then, the q-axis current can be decomposed to an asymmetric triangular wave component and a low frequency component. Using the triangular wave current and the voltage equation, an inductance identification algorithm is designed. Since the injected positive voltage can be smaller, this method overcomes the difficulty that the symmetric square wave voltage cannot be injected at high-speed range, thus expanding the application of the inductance identification. And since the triangular wave current can be accurately extracted, the interference caused by back-EMF is eliminated. The simulation results demonstrate the effectiveness of the method. |
| first_indexed | 2024-03-13T06:58:53Z |
| format | Article |
| id | doaj.art-51e00bfa29054aa78ef39491facc91ee |
| institution | Directory Open Access Journal |
| issn | 2352-4847 |
| language | English |
| last_indexed | 2024-03-13T06:58:53Z |
| publishDate | 2023-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Energy Reports |
| spelling | doaj.art-51e00bfa29054aa78ef39491facc91ee2023-06-07T04:48:42ZengElsevierEnergy Reports2352-48472023-05-019168174An asymmetric-square-wave voltage injection method for online inductance identification of PMSM under sensorless controlYang Ge0Weizhang Song1Corresponding author.; School of Electrical Engineering, Xi’an University of Technology, Xi’an 710048, ChinaSchool of Electrical Engineering, Xi’an University of Technology, Xi’an 710048, ChinaIn this paper, an online inductance identification method for PMSM, which is embedded into the flux-estimation-based sensorless control, is proposed. By injecting a periodic voltage where a larger negative voltage lasts one switching cycle, and a smaller positive voltage lasts several switching cycles, the extra voltage equation is established. Then, the q-axis current can be decomposed to an asymmetric triangular wave component and a low frequency component. Using the triangular wave current and the voltage equation, an inductance identification algorithm is designed. Since the injected positive voltage can be smaller, this method overcomes the difficulty that the symmetric square wave voltage cannot be injected at high-speed range, thus expanding the application of the inductance identification. And since the triangular wave current can be accurately extracted, the interference caused by back-EMF is eliminated. The simulation results demonstrate the effectiveness of the method.http://www.sciencedirect.com/science/article/pii/S2352484722027299PMSMSensorless controlAsymmetric-square-wave voltage injectionInductance identificationAdaptive algorithm |
| spellingShingle | Yang Ge Weizhang Song An asymmetric-square-wave voltage injection method for online inductance identification of PMSM under sensorless control Energy Reports PMSM Sensorless control Asymmetric-square-wave voltage injection Inductance identification Adaptive algorithm |
| title | An asymmetric-square-wave voltage injection method for online inductance identification of PMSM under sensorless control |
| title_full | An asymmetric-square-wave voltage injection method for online inductance identification of PMSM under sensorless control |
| title_fullStr | An asymmetric-square-wave voltage injection method for online inductance identification of PMSM under sensorless control |
| title_full_unstemmed | An asymmetric-square-wave voltage injection method for online inductance identification of PMSM under sensorless control |
| title_short | An asymmetric-square-wave voltage injection method for online inductance identification of PMSM under sensorless control |
| title_sort | asymmetric square wave voltage injection method for online inductance identification of pmsm under sensorless control |
| topic | PMSM Sensorless control Asymmetric-square-wave voltage injection Inductance identification Adaptive algorithm |
| url | http://www.sciencedirect.com/science/article/pii/S2352484722027299 |
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