Real-time simulation study of photovoltaic grid-connected system by RTDS

The paper proposes a novel real-time simulation method for PV grid-connected systems under real weather conditions including irradiation and surface temperature of solar cell.The real-time simulation model based on the RSCAD software platform of RTDS is built.With a large amount of practical PV data importing through writing in the script file,the outdoor PV system simulation can be realized in RTDS.It neglects the limits of real conditions of the PV experiment in the laboratory.At the same time,it takes the hardware environment into account to fetch up the shortage of all-digital simulation platform.It provides a good simulation platform for the laboratory photovoltaic research.The simulation results show that RTDS can not only accurately implement and validate the PV grid-connected system,but also provide more detailed real-time information about state variables.