Active Frequency with a Positive Feedback Anti-Islanding Method Based on a Robust PLL Algorithm for Grid-Connected PV PCS
DC Field | Value | Language |
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dc.contributor.author | Lee, Jong-Pil | - |
dc.contributor.author | Min, Byung-Duk | - |
dc.contributor.author | Kim, Tae-Jin | - |
dc.contributor.author | Yoo, Dong-Wook | - |
dc.contributor.author | Yoo, Ji-Yoon | - |
dc.date.accessioned | 2021-09-07T13:02:45Z | - |
dc.date.available | 2021-09-07T13:02:45Z | - |
dc.date.created | 2021-06-14 | - |
dc.date.issued | 2011-05 | - |
dc.identifier.issn | 1598-2092 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/112603 | - |
dc.description.abstract | This paper proposes an active frequency with a positive feedback in the d-q frame anti-islanding method suitable for a robust phase-locked loop (PLL) algorithm using the FFT concept. In general, PLL algorithms for grid-connected PV PCS use d-q transformation and controllers to make zero an imaginary part of the transformed voltage vector. In a real grid system, the grid voltage is not ideal. It may be unbalanced, noisy and have many harmonics. For these reasons, the d-q transformed components do not have a pure DC component. The controller tuning of a PLL algorithm is difficult. The proposed PLL algorithm using the FFT concept can use the strong noise cancelation characteristics of a FFT algorithm without a PI controller. Therefore, the proposed PLL algorithm has no gain-tuning of a PI controller, and it is hardly influenced by voltage drops, phase step changes and harmonics. Islanding prediction is a necessary feature of inverter-based photovoltaic (PV) systems in order to meet the stringent standard requirements for interconnection with an electrical grid. Both passive and active anti-islanding methods exist. Typically, active methods modify a given parameter, which also affects the shape and quality of the grid injected current. In this paper, the active anti-islanding algorithm for a grid-connected PV PCS uses positive feedback control in the d-q frame. The proposed PLL and anti-islanding algorithm are implemented for a 250kW PV PCS. This system has four DC/DC converters each with a 25kW power rating. This is only one-third of the total system power. The experimental results show that the proposed PLL, anti-islanding method and topology demonstrate good performance in a 250kW PV PCS. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | KOREAN INST POWER ELECTRONICS | - |
dc.subject | DC/DC CONVERTER | - |
dc.subject | HIGH-EFFICIENCY | - |
dc.subject | SYSTEMS | - |
dc.subject | OPERATION | - |
dc.subject | TOPOLOGY | - |
dc.subject | VOLTAGE | - |
dc.title | Active Frequency with a Positive Feedback Anti-Islanding Method Based on a Robust PLL Algorithm for Grid-Connected PV PCS | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Yoo, Ji-Yoon | - |
dc.identifier.doi | 10.6113/JPE.2011.11.3.360 | - |
dc.identifier.scopusid | 2-s2.0-79957441812 | - |
dc.identifier.wosid | 000291083200015 | - |
dc.identifier.bibliographicCitation | JOURNAL OF POWER ELECTRONICS, v.11, no.3, pp.360 - 368 | - |
dc.relation.isPartOf | JOURNAL OF POWER ELECTRONICS | - |
dc.citation.title | JOURNAL OF POWER ELECTRONICS | - |
dc.citation.volume | 11 | - |
dc.citation.number | 3 | - |
dc.citation.startPage | 360 | - |
dc.citation.endPage | 368 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.identifier.kciid | ART001552770 | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.description.journalRegisteredClass | kci | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalWebOfScienceCategory | Engineering, Electrical & Electronic | - |
dc.subject.keywordPlus | DC/DC CONVERTER | - |
dc.subject.keywordPlus | HIGH-EFFICIENCY | - |
dc.subject.keywordPlus | SYSTEMS | - |
dc.subject.keywordPlus | OPERATION | - |
dc.subject.keywordPlus | TOPOLOGY | - |
dc.subject.keywordPlus | VOLTAGE | - |
dc.subject.keywordAuthor | Anti-Islanding | - |
dc.subject.keywordAuthor | Grid-Connected | - |
dc.subject.keywordAuthor | Photovoltaic PCS | - |
dc.subject.keywordAuthor | PLL | - |
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