PV Power Injection and Active Power Filtering With Amplitude-Clamping and Amplitude-Scaling Algorithms.

Autor: Tsai-Fu Wu, Hung-Shou Nien, Hui-Ming Hsieh, Chih-Lung Shen
Předmět:
Zdroj: IEEE Transactions on Industry Applications; May/Jun2007, Vol. 43 Issue 3, p731-741, 11p, 4 Black and White Photographs, 4 Diagrams, 1 Chart, 15 Graphs
Abstrakt: This paper presents a half-bridge single-phase two-wire (1ϕ2W) photovoltaic (PV) inverter system that can perform both active power filtering and real power injection. In the proposed system, it needs only two active switches, reducing cost significantly. In addition, output current of the inverter can be controlled to prevent switches from exceeding their current ratings. Thus, power rating of the inverter can be effectively used and power quality can be improved. For controlling inverter output current, an amplitude-clamping algorithm and an amplitude-scaling algorithm are proposed, which can determine inverter current command without needs of complicated calculation. Simulations and experimental results have verified the feasibility of the proposed PV inverter system and the two current control algorithms. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index