An LCL-filtered Single-phase Multilevel Inverter for Grid Integration of PV Systems
Integration of the PV into the electrical grid needs power electronic interface. This power electronic interface should have some key features and should come up with grid codes. One of the important criteria is the quality and harmonic contents of the current being injected to the grid. High-order...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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University of Mohaghegh Ardabili
2016-06-01
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| Series: | Journal of Operation and Automation in Power Engineering |
| Subjects: | |
| Online Access: | http://joape.uma.ac.ir/article_425_c04a1587d3822f2ebf3bc5a929a86618.pdf |
| _version_ | 1819267015920058368 |
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| author | Mohammad Farhadi Kangarlu Ebrahim Babaei Frede Blaabjerg |
| author_facet | Mohammad Farhadi Kangarlu Ebrahim Babaei Frede Blaabjerg |
| author_sort | Mohammad Farhadi Kangarlu |
| collection | DOAJ |
| description | Integration of the PV into the electrical grid needs power electronic interface. This power electronic interface should have some key features and should come up with grid codes. One of the important criteria is the quality and harmonic contents of the current being injected to the grid. High-order harmonics of the grid current should be very limited (lower than 0.3% of the fundamental current). Beside the topology of the power electronic interface, the output filter also affects the quality of the grid current. In this paper, a 5-level inverter is presented for grid integration of PV systems along with its output LCL filter design. Analytical calculation of losses for the 5-level inverter and the output LCL filter is presented. It is also compared to the H-bridge inverter in terms of output voltage and current harmonics, and the overall losses. Second-order generalized integral phase locked loop is used to synchronize the system with the grid voltage and the proportional resonant (PR) with harmonic compensation control method is used to control the output current. The proposed system has been simulated in the PSCAD/EMTDC environment to verify its operation and control. |
| first_indexed | 2024-12-23T21:10:27Z |
| format | Article |
| id | doaj.art-f0ad97b87e424e73a2809c48c1795032 |
| institution | Directory Open Access Journal |
| issn | 2322-4576 2423-4567 |
| language | English |
| last_indexed | 2024-12-23T21:10:27Z |
| publishDate | 2016-06-01 |
| publisher | University of Mohaghegh Ardabili |
| record_format | Article |
| series | Journal of Operation and Automation in Power Engineering |
| spelling | doaj.art-f0ad97b87e424e73a2809c48c17950322022-12-21T17:31:05ZengUniversity of Mohaghegh ArdabiliJournal of Operation and Automation in Power Engineering2322-45762423-45672016-06-01415465425An LCL-filtered Single-phase Multilevel Inverter for Grid Integration of PV SystemsMohammad Farhadi Kangarlu0Ebrahim Babaei1Frede Blaabjerg2Urmia UniversityFaculty of Electrical and Computer Engineering, University of Tabriz, Tabriz, IranDepartment of Energy Technology, Aalborg University, Aalborg, DenmarkIntegration of the PV into the electrical grid needs power electronic interface. This power electronic interface should have some key features and should come up with grid codes. One of the important criteria is the quality and harmonic contents of the current being injected to the grid. High-order harmonics of the grid current should be very limited (lower than 0.3% of the fundamental current). Beside the topology of the power electronic interface, the output filter also affects the quality of the grid current. In this paper, a 5-level inverter is presented for grid integration of PV systems along with its output LCL filter design. Analytical calculation of losses for the 5-level inverter and the output LCL filter is presented. It is also compared to the H-bridge inverter in terms of output voltage and current harmonics, and the overall losses. Second-order generalized integral phase locked loop is used to synchronize the system with the grid voltage and the proportional resonant (PR) with harmonic compensation control method is used to control the output current. The proposed system has been simulated in the PSCAD/EMTDC environment to verify its operation and control.http://joape.uma.ac.ir/article_425_c04a1587d3822f2ebf3bc5a929a86618.pdfMultilevel inverterPVLCL filterMPPT |
| spellingShingle | Mohammad Farhadi Kangarlu Ebrahim Babaei Frede Blaabjerg An LCL-filtered Single-phase Multilevel Inverter for Grid Integration of PV Systems Journal of Operation and Automation in Power Engineering Multilevel inverter PV LCL filter MPPT |
| title | An LCL-filtered Single-phase Multilevel Inverter for Grid Integration of PV Systems |
| title_full | An LCL-filtered Single-phase Multilevel Inverter for Grid Integration of PV Systems |
| title_fullStr | An LCL-filtered Single-phase Multilevel Inverter for Grid Integration of PV Systems |
| title_full_unstemmed | An LCL-filtered Single-phase Multilevel Inverter for Grid Integration of PV Systems |
| title_short | An LCL-filtered Single-phase Multilevel Inverter for Grid Integration of PV Systems |
| title_sort | lcl filtered single phase multilevel inverter for grid integration of pv systems |
| topic | Multilevel inverter PV LCL filter MPPT |
| url | http://joape.uma.ac.ir/article_425_c04a1587d3822f2ebf3bc5a929a86618.pdf |
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