Enhanced method of rotor speed and position estimation of permanent magnet synchronous Machine based on stator SRF-PLL
A stator flux oriented synchronous reference frame - phase locked loop (SRF-PLL) is proposed for the precise computation of rotor speed and position of permanent magnet synchronous machine (PMSM). A direct method of rotational speed computation based on the stator electromotive force (EMF) is initia...
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| Format: | Article |
| Language: | English |
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Elsevier
2017-10-01
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| Series: | Engineering Science and Technology, an International Journal |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2215098617308716 |
| _version_ | 1818561407931645952 |
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| author | R. Vijayapriya P. Raja M.P. Selvan |
| author_facet | R. Vijayapriya P. Raja M.P. Selvan |
| author_sort | R. Vijayapriya |
| collection | DOAJ |
| description | A stator flux oriented synchronous reference frame - phase locked loop (SRF-PLL) is proposed for the precise computation of rotor speed and position of permanent magnet synchronous machine (PMSM). A direct method of rotational speed computation based on the stator electromotive force (EMF) is initially formulated. Using the speed as a reference to the inverse Park and Clarke transformation blocks, the three-phase positive sequence stator flux is derived. A pre-stage low pass filter (LPF) is implemented to cancel out the ripples in the d-q components of the stator flux introduced by the dynamic operating conditions of inverter non-linearities and grid disturbances. The estimated three-phase positive sequence stator flux is used to compute the rotor position by aligning the total stator flux along the direct axis through a PLL block. Provision of the frequency amendment and ripple cancellation outside the PLL block results in a fast-dynamic response with an enhanced frequency adaptable capability. To validate the effectiveness of the proposed method, the sensorless vector control of grid integrated PMSM based wind-driven generator (WG) is analytically verified using the PSCAD/EMTDC simulation tool under various dynamic operating conditions such as wind speed variation and grid disturbances. |
| first_indexed | 2024-12-14T00:50:27Z |
| format | Article |
| id | doaj.art-dba8bc54fea342f8b48674b33eb50841 |
| institution | Directory Open Access Journal |
| issn | 2215-0986 |
| language | English |
| last_indexed | 2024-12-14T00:50:27Z |
| publishDate | 2017-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Engineering Science and Technology, an International Journal |
| spelling | doaj.art-dba8bc54fea342f8b48674b33eb508412022-12-21T23:23:53ZengElsevierEngineering Science and Technology, an International Journal2215-09862017-10-012051450145910.1016/j.jestch.2017.09.004Enhanced method of rotor speed and position estimation of permanent magnet synchronous Machine based on stator SRF-PLLR. VijayapriyaP. RajaM.P. SelvanA stator flux oriented synchronous reference frame - phase locked loop (SRF-PLL) is proposed for the precise computation of rotor speed and position of permanent magnet synchronous machine (PMSM). A direct method of rotational speed computation based on the stator electromotive force (EMF) is initially formulated. Using the speed as a reference to the inverse Park and Clarke transformation blocks, the three-phase positive sequence stator flux is derived. A pre-stage low pass filter (LPF) is implemented to cancel out the ripples in the d-q components of the stator flux introduced by the dynamic operating conditions of inverter non-linearities and grid disturbances. The estimated three-phase positive sequence stator flux is used to compute the rotor position by aligning the total stator flux along the direct axis through a PLL block. Provision of the frequency amendment and ripple cancellation outside the PLL block results in a fast-dynamic response with an enhanced frequency adaptable capability. To validate the effectiveness of the proposed method, the sensorless vector control of grid integrated PMSM based wind-driven generator (WG) is analytically verified using the PSCAD/EMTDC simulation tool under various dynamic operating conditions such as wind speed variation and grid disturbances.http://www.sciencedirect.com/science/article/pii/S2215098617308716Low pass filterSynchronous reference framePhase locked loopPMSMStator fluxSpeed and position estimation |
| spellingShingle | R. Vijayapriya P. Raja M.P. Selvan Enhanced method of rotor speed and position estimation of permanent magnet synchronous Machine based on stator SRF-PLL Engineering Science and Technology, an International Journal Low pass filter Synchronous reference frame Phase locked loop PMSM Stator flux Speed and position estimation |
| title | Enhanced method of rotor speed and position estimation of permanent magnet synchronous Machine based on stator SRF-PLL |
| title_full | Enhanced method of rotor speed and position estimation of permanent magnet synchronous Machine based on stator SRF-PLL |
| title_fullStr | Enhanced method of rotor speed and position estimation of permanent magnet synchronous Machine based on stator SRF-PLL |
| title_full_unstemmed | Enhanced method of rotor speed and position estimation of permanent magnet synchronous Machine based on stator SRF-PLL |
| title_short | Enhanced method of rotor speed and position estimation of permanent magnet synchronous Machine based on stator SRF-PLL |
| title_sort | enhanced method of rotor speed and position estimation of permanent magnet synchronous machine based on stator srf pll |
| topic | Low pass filter Synchronous reference frame Phase locked loop PMSM Stator flux Speed and position estimation |
| url | http://www.sciencedirect.com/science/article/pii/S2215098617308716 |
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