Analysis of the influence of photovoltaic sources integrated into distribution network in different ways

Analysis of the impact of photovoltaic sources massively connect to distribution network will be helpful to take measures in advance to improve the stability of the power grid. According to the voltage changes of distribution network under both ways of the photovoltaic sources single-point and multi-points access to distribution network, this paper puts forward three quantitative indicators, which include of voltage difference change rate, static voltage indicator and net loss variation. In view of practical engineering network topology, the quantitative indicators are calculated to analyze the influence of photovoltaic sources integrated into the distribution network, and the rationality of photovoltaic sources access scheme of the demonstration project is verified. It proves that these quantitative indicators have practical engineering applications value.