TITLE:
Unified Control Strategy of PV Inverter Mixed Power Quality Control
AUTHORS:
Jie Zhang, Kai Yao, Liang Li, Wei Zhao
KEYWORDS:
PV Inverter; APF; Unified Control; Decision Table
JOURNAL NAME:
Energy and Power Engineering,
Vol.5 No.4B,
October
15,
2013
ABSTRACT: Due to the restriction of light illumination condition, the effective utilization of PV grid-connected systems is very low. In view of this question, this paper presents a unified control strategy based on PV grid-connected and active power filter. The distributed small-capacity grid-connected inverter is chose to be the research object. It is preferential to eliminate the deviation between power qualities of the national standards according to the control of decision tables, and adjust the proportion of the compensation currents dynamically. Finally, the simulation results demonstrate the effectiveness of this unified control strategy.