Research on Two-Stage Three-Phase Photovoltaic Grid-Connected System

Abstract:

Nowadays the penetration of PV-generated power energy into the utility grid is increasing exponentially. This paper focuses on two-stage three-phase grid-connected PV systems, which includes modeling of three-phase grid-connected PV systems, grid-connected control strategy of inverter. The inverter based on the grid-voltage oriented vector control used SVPWM-based synchronous current vector PI controllers to control the grid-current of the common point in three-phase grid-connected system. Theoretic analysis and experimental results on a 2.5KW prototype verify the presented algorithm.

• Periodical: Advanced Materials Research (Volumes 535-537)
• Pages: 1247-1251
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.535-537.1247
• Online since: June 2012
• Authors: Xiao Jie Zhou, Yi Ruan
• Keywords: Decoupling Control Method, Grid-Connected Inverter, PI Control, PV

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