含光伏的交直流混合配网潮流计算方法与分析

Typical Architecture of AC/DC Hybrid Distribution Network and Contingency Analysis with Containing Photovoltaic

结合光伏的直流属性、直流用户需求和直流配电特性,提出适用于含光伏的交直流配电网潮流计算方法并对其进行分析。根据光伏发电的间歇性特征,采用美国南部田纳西州某城市24h实际观测光照强度和温度数据,研究光伏系统的功率变化特性,综合考虑电力电子设备的实际运行约束,针对IEEE13节点三相不平衡交流配电网通过电压源逆变器连接含光伏的直流网络的算例系统,进行了提出了潮流计算和分析方法,并验证了方法的可行性。

Combining solar DC properties,DC user requirements and DC power distribution features,AC/DC power flow calculation method including photovoltaic generation was proposed and analyzed. According to the photovoltaic intermittent profile,an example was used to analyze power change characteristics of photovoltaic system by adapting the observed solar radiation and temperature data of the southern United States,Tennessee. The method of considering the actual operation of power electronic equipment was done for the AC/DC hybrid system,and the feasibility of the method is validated by case study.