Name
Abstract | ||
|---|---|---|
A novel scheme for three-phase grid-connected photovoltaic (PV) generation systems is presented in this paper. The scheme is based on two insulated strings of PV panels, each one feeding the dc bus of a standard two-level three-phase voltage-source inverter (VSI). The inverters are connected to the grid by a three-phase transformer having open-end windings on the inverter side. The resulting conversion structure performs as a multilevel power active filter (equivalent to a three-level inverter), doubling the power capability of a single VSI with given voltage and current ratings. The multilevel voltage waveforms are generated by an improved space-vector-modulation algorithm, suitable for the implementation in industrial digital signal processors. An original control method has been introduced to regulate the dc-link voltages of each VSI, according to the voltage reference given by a single maximum power point tracking controller. The proposed regulation system has been verified by numerical simulations and experimental tests with reference to different operating conditions. |
Year | DOI | Venue |
|---|---|---|
2009 | 10.1109/TIE.2009.2029587 | IEEE Transactions on Industrial Electronics |
Keywords | Field | DocType |
Inverters,Voltage control,Photovoltaic systems,Solar power generation,Mesh generation,Power transformer insulation,Phase transformers,Active filters,Signal generators,Signal processing algorithms | Inverter,Grid-connected photovoltaic power system,Control theory,DC-BUS,Active filter,Control theory,Voltage reference,Maximum power point tracking,Control engineering,Electronic engineering,Engineering,Photovoltaic system | Journal |
Volume | Issue | ISSN |
56 | 11 | 0278-0046 |
Citations | PageRank | References |
20 | 1.91 | 5 |
Authors | ||
4 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| G. Grandi | 1 | 58 | 9.36 |
| Claudio Rossi | 2 | 383 | 27.36 |
| Darko Ostojic | 3 | 20 | 1.91 |
| Domenico Casadei | 4 | 121 | 14.90 |