Modified SOGI based shunt active power filter to tackle various grid voltage abnormalities
Shunt Active Power Filters (SAPF) have been effectively used to compensate the harmonics generated by the non-linear loads. The SAPF’s performance depends on the accurate generation of reference current, which is dependent greatly on the template of supply voltage. When the grid voltage (or its temp...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
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/S2215098617309333 |
| _version_ | 1811319184060055552 |
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| author | Kalpeshkumar Patil Hiren H. Patel |
| author_facet | Kalpeshkumar Patil Hiren H. Patel |
| author_sort | Kalpeshkumar Patil |
| collection | DOAJ |
| description | Shunt Active Power Filters (SAPF) have been effectively used to compensate the harmonics generated by the non-linear loads. The SAPF’s performance depends on the accurate generation of reference current, which is dependent greatly on the template of supply voltage. When the grid voltage (or its template) is characterized by different abnormalities like presence of harmonics, imbalance, dc-offset etc., some of the conventional techniques of frequency estimation may fail to correctly estimate the frequency. This ultimately affects the reference current generation and hence, the SAPF operation, ultimately leading to high distortion of the grid currents. The paper presents modified dual second-order generalized integrator (MDSOGI) based SAPF to ensure effective compensation of harmonics, even when the grid voltage is characterized by all the abnormalities mentioned above. It is highlighted with one case that when the sensed voltage is having dc-offset, DSOGI-SAPF results into the source current with THD, dc-offset and harmonic with values 5.82%, 0.8% and 4.5%, respectively. For the same case, the proposed technique yields grid current which is free of dc-offset and 2nd harmonic and has THD = 3.57%. The dynamic performance of the MDSOGI-SAPF is validated and its superior performance over DSOGI-SAPF is illustrated even with experimental results. |
| first_indexed | 2024-04-13T12:37:33Z |
| format | Article |
| id | doaj.art-ca34a746f7c64a939d06501e95395fd0 |
| institution | Directory Open Access Journal |
| issn | 2215-0986 |
| language | English |
| last_indexed | 2024-04-13T12:37:33Z |
| publishDate | 2017-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Engineering Science and Technology, an International Journal |
| spelling | doaj.art-ca34a746f7c64a939d06501e95395fd02022-12-22T02:46:36ZengElsevierEngineering Science and Technology, an International Journal2215-09862017-10-012051466147410.1016/j.jestch.2017.10.004Modified SOGI based shunt active power filter to tackle various grid voltage abnormalitiesKalpeshkumar PatilHiren H. PatelShunt Active Power Filters (SAPF) have been effectively used to compensate the harmonics generated by the non-linear loads. The SAPF’s performance depends on the accurate generation of reference current, which is dependent greatly on the template of supply voltage. When the grid voltage (or its template) is characterized by different abnormalities like presence of harmonics, imbalance, dc-offset etc., some of the conventional techniques of frequency estimation may fail to correctly estimate the frequency. This ultimately affects the reference current generation and hence, the SAPF operation, ultimately leading to high distortion of the grid currents. The paper presents modified dual second-order generalized integrator (MDSOGI) based SAPF to ensure effective compensation of harmonics, even when the grid voltage is characterized by all the abnormalities mentioned above. It is highlighted with one case that when the sensed voltage is having dc-offset, DSOGI-SAPF results into the source current with THD, dc-offset and harmonic with values 5.82%, 0.8% and 4.5%, respectively. For the same case, the proposed technique yields grid current which is free of dc-offset and 2nd harmonic and has THD = 3.57%. The dynamic performance of the MDSOGI-SAPF is validated and its superior performance over DSOGI-SAPF is illustrated even with experimental results.http://www.sciencedirect.com/science/article/pii/S2215098617309333Shunt active power filterPhase-locked loopDc-offsetSecond order generalized integratorFrequency-locked loop |
| spellingShingle | Kalpeshkumar Patil Hiren H. Patel Modified SOGI based shunt active power filter to tackle various grid voltage abnormalities Engineering Science and Technology, an International Journal Shunt active power filter Phase-locked loop Dc-offset Second order generalized integrator Frequency-locked loop |
| title | Modified SOGI based shunt active power filter to tackle various grid voltage abnormalities |
| title_full | Modified SOGI based shunt active power filter to tackle various grid voltage abnormalities |
| title_fullStr | Modified SOGI based shunt active power filter to tackle various grid voltage abnormalities |
| title_full_unstemmed | Modified SOGI based shunt active power filter to tackle various grid voltage abnormalities |
| title_short | Modified SOGI based shunt active power filter to tackle various grid voltage abnormalities |
| title_sort | modified sogi based shunt active power filter to tackle various grid voltage abnormalities |
| topic | Shunt active power filter Phase-locked loop Dc-offset Second order generalized integrator Frequency-locked loop |
| url | http://www.sciencedirect.com/science/article/pii/S2215098617309333 |
| work_keys_str_mv | AT kalpeshkumarpatil modifiedsogibasedshuntactivepowerfiltertotacklevariousgridvoltageabnormalities AT hirenhpatel modifiedsogibasedshuntactivepowerfiltertotacklevariousgridvoltageabnormalities |