分布式光伏电源对配电网网损的影响

摘要

When a large number of distributed photovoltaic power sources (DPVs) of random and intermittent volatility caused by weather conditions are connected into the distribution network, the distribution network loss will be inevitably affected. In this paper, DPVs are connected to the end terminal of the distribution network in a centralized manner, then simulation of the impacts of the active power output and power factor of the DPVs under the R/X, load level, load power factor of different distribution networks, and the loss rate index is used to quantify the impact of the loss on the distribution network, and the variation law of the loss of the distribution network integrated with DPVs is comprehensively summarized.%当配电网中接入大量的受天气条件影响而出力具有随机性、波动性和间歇性的分布式光伏电源时,必然会对配电网网损产生影响.将分布式光伏电源集中接入配电网的末端,通过仿真研究了在不同的配电网的R/X、负荷水平、负荷功率因数下,分布式光伏电源的有功出力和功率因数对配电网网损产生的影响,并提出了利用网损变化率指标来量化对配电网网损的影响程度,全面总结了含分布式光伏电源的配电网网损的变化规律.