Modeling and Simulation of Photovoltaic Grid-Connected System Based on PSCAD/EMTDC

Minghong QIN; Shengyun YANG; Yong CHANG

doi:10.16513/j.cnki.10-1427/tk.2019.04.002

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Distributed Energy ›› 2019, Vol. 4 ›› Issue (4) : 10-16. DOI: 10.16513/j.cnki.10-1427/tk.2019.04.002

Basic Research

Modeling and Simulation of Photovoltaic Grid-Connected System Based on PSCAD/EMTDC

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Abstract

According to the physical model of photovoltaic cells and the output characteristics of photovoltaic arrays under different illumination intensity and ambient temperature, the theoretical analysis and implementation of the maximum power tracking control based on Boost circuit are carried out. The work principle of three-phase photovoltaic grid-connected inverter is discussed. And the three-phase photovoltaic grid-connected system is built in PSCAD/EMTDC. The model construction of 20MW photovoltaic power station is carried out by using PSCAD simulation software, and the simulation of the grid-connected process is carried out to analyze the impact on the power quality of the grid. Finally, a feasible solution is proposed and simulated.

Key words

photovoltaic power generation / photovoltaic system modeling / grid-connected control strategy / power quality / filtering strategy

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Minghong QIN , Shengyun YANG , Yong CHANG. Modeling and Simulation of Photovoltaic Grid-Connected System Based on PSCAD/EMTDC[J]. Distributed Energy Resources. 2019, 4(4): 10-16 https://doi.org/10.16513/j.cnki.10-1427/tk.2019.04.002

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