Study on impact of grid connection of distributed photovoltaic system on distribution network peak-valley difference considering photovoltaic volatility
2012
In this paper, firstly an IEEE 13 node feeder system simulation model is established in Matlab/simulink. Then, taking into consideration the typical photovoltaic output fluctuation and daily load curve of the distribution network, and with simulation method, the study obtains the value of the system peak-valley difference considering the superposition of fluctuation of load and photovoltaic output. Furthermore, the paper studies the relationship between the peak-valley difference and the photovoltaic access modes, as well as capacity and operating condition, thus drawing the law of influence of connected photovoltaic system on peak-valley difference. The conclusions of the study can provide an operation reference for the determination of photovoltaic-grid-connection scheme and the peak regulation and planning of distribution network with connected photovoltaic system.
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