Back to Search
Start Over
A Mathematical Model and Performance Evaluation for a Single-Stage Grid-Connected Photovoltaic (PV) System.
- Source :
-
International Journal of Emerging Electric Power Systems . 2008, Vol. 9 Issue 6, preceding p1-33. 34p. 4 Diagrams, 4 Charts, 13 Graphs. - Publication Year :
- 2008
-
Abstract
- This paper proposes a control strategy for important transients of a single-stage, three-phase, PV system that is connected to a distribution network. The proposed control strategy adopts an inner current-control loop and an outer DC-link voltage control loop. The current-control mechanism renders the PV system protected against external faults, enables control of the DC-link voltage and, therefore, controls/maximizes the PV system power output. The paper also proposes a feed-forward compensation strategy for the DC-link voltage control loop to mitigate the impact of the nonlinear characteristic of the PV array on the closed-loop stability, and to permit design and optimization of the DC-link voltage controller for a wide range of operating conditions. A mathematical model and a control design methodology are presented for the PV system, and it is shown that under the proposed control, the PV system fulfills the operational requirements of a grid-connected PV system. The effectiveness of the proposed control strategy and the most important transients of the PV system are evaluated through simulation studies conducted on a detailed switched model of the PV system in the PSCAD/EMTDC software environment. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 1553779X
- Volume :
- 9
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- International Journal of Emerging Electric Power Systems
- Publication Type :
- Academic Journal
- Accession number :
- 36266851
- Full Text :
- https://doi.org/10.2202/1553-779X.2033