Improved power control using optimal adjustable coefficients for three-phase photovoltaic inverter under unbalanced grid voltage.
Unbalanced grid faults will lead to several drawbacks in the output power quality of photovoltaic generation (PV) converters, such as power fluctuation, current amplitude swell, and a large quantity of harmonics. The aim of this paper is to propose a flexible AC current generation method by selectin...
| Publicado en: | Scientific World Journal pp. 538520 - 538521 |
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| Autores principales: | , , , |
| Formato: | research Journal Article |
| Publicado: |
Wiley-Blackwell
2014
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=109756147&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 109756147 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 1537744X 1BX5 jtl: Scientific World Journal issn: 1537744X maglogo: N pubinfo: dt: 2014 pid: 480 pub: Wiley-Blackwell place: Malden, Massachusetts artinfo: ui: 109756147 109756147 NLM25243215 2012741511 10.1155/2014/538520 NLM25243215 PMC4163378 109756147 ppf: 538520 ppct: 1 formats: tig: atl: Improved power control using optimal adjustable coefficients for three-phase photovoltaic inverter under unbalanced grid voltage. aug: au: Wang, Qianggang Zhou, Niancheng Lou, Xiaoxuan Chen, Xu affil: State Key Laboratory of Power Transmission Equipment and System Safety and New Technology, Chongqing University, Chongqing 400044, China. sug: subj: Power Sources Standards Equipment Design Standards Power Sources Trends Equipment Design Trends ab: Unbalanced grid faults will lead to several drawbacks in the output power quality of photovoltaic generation (PV) converters, such as power fluctuation, current amplitude swell, and a large quantity of harmonics. The aim of this paper is to propose a flexible AC current generation method by selecting coefficients to overcome these problems in an optimal way. Three coefficients are brought in to tune the output current reference within the required limits of the power quality (the current harmonic distortion, the AC current peak, the power fluctuation, and the DC voltage fluctuation). Through the optimization algorithm, the coefficients can be determined aiming to generate the minimum integrated amplitudes of the active and reactive power references with the constraints of the inverter current and DC voltage fluctuation. Dead-beat controller is utilized to track the optimal current reference in a short period. The method has been verified in PSCAD/EMTDC software. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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