Improved Power Control Using Optimal Adjustable Coefficients for Three-Phase Photovoltaic Inverter under Unbalanced Grid Voltage
Joint Authors
Wang, Qianggang
Zhou, Niancheng
Lou, Xiaoxuan
Chen, Xu
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-08-27
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Medicine
Information Technology and Computer Science
Abstract EN
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.
American Psychological Association (APA)
Wang, Qianggang& Zhou, Niancheng& Lou, Xiaoxuan& Chen, Xu. 2014. Improved Power Control Using Optimal Adjustable Coefficients for Three-Phase Photovoltaic Inverter under Unbalanced Grid Voltage. The Scientific World Journal،Vol. 2014, no. 2014, pp.1-12.
https://search.emarefa.net/detail/BIM-1050032
Modern Language Association (MLA)
Wang, Qianggang…[et al.]. Improved Power Control Using Optimal Adjustable Coefficients for Three-Phase Photovoltaic Inverter under Unbalanced Grid Voltage. The Scientific World Journal No. 2014 (2014), pp.1-12.
https://search.emarefa.net/detail/BIM-1050032
American Medical Association (AMA)
Wang, Qianggang& Zhou, Niancheng& Lou, Xiaoxuan& Chen, Xu. Improved Power Control Using Optimal Adjustable Coefficients for Three-Phase Photovoltaic Inverter under Unbalanced Grid Voltage. The Scientific World Journal. 2014. Vol. 2014, no. 2014, pp.1-12.
https://search.emarefa.net/detail/BIM-1050032
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1050032