DC‐offset elimination method for grid synchronisation
For three‐phase power system, the synchronous reference frame (SRF) phase‐locked loop (PLL) is probably the most widely used synchronisation technique under ideal grid condition. However, the presence of dc‐offset causes fundamental frequency oscillations errors in estimated phase. To deal with this...
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| Format: | Article |
| Language: | English |
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Wiley
2017-03-01
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| Series: | Electronics Letters |
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| Online Access: | https://doi.org/10.1049/el.2016.4570 |
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| _version_ | 1832096658749390848 |
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| author | Yunlu Li Dazhi Wang Yi Ning Nanmu Hui |
| author_facet | Yunlu Li Dazhi Wang Yi Ning Nanmu Hui |
| author_sort | Yunlu Li |
| collection | DOAJ |
| description | For three‐phase power system, the synchronous reference frame (SRF) phase‐locked loop (PLL) is probably the most widely used synchronisation technique under ideal grid condition. However, the presence of dc‐offset causes fundamental frequency oscillations errors in estimated phase. To deal with this problem, delay signal cancellation (DSC) operator is utilised in SRF‐PLL in recent published literature at the cost of slowing down the dynamic behaviour. The aim is to propose a rapid dc‐offset rejection method in three‐phase PLL for grid synchronisation. With the employment of modified DSC operator, the dynamic performance of the conventional DSC‐based PLL is improved. The effectiveness of the proposed method is confirmed through simulation results. |
| format | Article |
| id | doaj-art-3fa56e28116f45e598e1a024db579200 |
| institution | Kabale University |
| issn | 0013-5194 1350-911X |
| language | English |
| publishDate | 2017-03-01 |
| publisher | Wiley |
| record_format | Article |
| series | Electronics Letters |
| spelling | doaj-art-3fa56e28116f45e598e1a024db5792002025-02-05T12:30:43ZengWileyElectronics Letters0013-51941350-911X2017-03-0153533533710.1049/el.2016.4570DC‐offset elimination method for grid synchronisationYunlu Li0Dazhi Wang1Yi Ning2Nanmu Hui3School of Information Science and EngineeringNortheastern UniversityShenyangPeople's Republic of ChinaSchool of Information Science and EngineeringNortheastern UniversityShenyangPeople's Republic of ChinaSchool of Information Science and EngineeringNortheastern UniversityShenyangPeople's Republic of ChinaSchool of Information Science and EngineeringNortheastern UniversityShenyangPeople's Republic of ChinaFor three‐phase power system, the synchronous reference frame (SRF) phase‐locked loop (PLL) is probably the most widely used synchronisation technique under ideal grid condition. However, the presence of dc‐offset causes fundamental frequency oscillations errors in estimated phase. To deal with this problem, delay signal cancellation (DSC) operator is utilised in SRF‐PLL in recent published literature at the cost of slowing down the dynamic behaviour. The aim is to propose a rapid dc‐offset rejection method in three‐phase PLL for grid synchronisation. With the employment of modified DSC operator, the dynamic performance of the conventional DSC‐based PLL is improved. The effectiveness of the proposed method is confirmed through simulation results.https://doi.org/10.1049/el.2016.4570DC‐offset elimination methodgrid synchronisationdelay signal cancellationDSC operatorSRF‐PLLdynamic behaviour |
| spellingShingle | Yunlu Li Dazhi Wang Yi Ning Nanmu Hui DC‐offset elimination method for grid synchronisation Electronics Letters DC‐offset elimination method grid synchronisation delay signal cancellation DSC operator SRF‐PLL dynamic behaviour |
| title | DC‐offset elimination method for grid synchronisation |
| title_full | DC‐offset elimination method for grid synchronisation |
| title_fullStr | DC‐offset elimination method for grid synchronisation |
| title_full_unstemmed | DC‐offset elimination method for grid synchronisation |
| title_short | DC‐offset elimination method for grid synchronisation |
| title_sort | dc offset elimination method for grid synchronisation |
| topic | DC‐offset elimination method grid synchronisation delay signal cancellation DSC operator SRF‐PLL dynamic behaviour |
| url | https://doi.org/10.1049/el.2016.4570 |
| work_keys_str_mv | AT yunluli dcoffseteliminationmethodforgridsynchronisation AT dazhiwang dcoffseteliminationmethodforgridsynchronisation AT yining dcoffseteliminationmethodforgridsynchronisation AT nanmuhui dcoffseteliminationmethodforgridsynchronisation |