This paper presents a data-driven distribution system load modeling methodology targeting quasi-static timeseries (QSTS) simulation. The proposed methodology is appropriate for modeling down to the level of the customer transformer, and it has three main features: 1) both load pattern diversity and intra-second load variability are considered, 2) the load profiles can be populated for multiple nodes on a circuit in such a way that the diversity factor of the feeder can be defined and tuned, and 3) the load aggregation method can be used to populate the profiles for different nodes at various load aggregation levels. As the foundation of the modeling methodology, variability and diversity libraries have been established based on high-resolution load data collected on customer transformers from real utility feeders. The proposed modeling methodology has been used to build load data sets for both the IEEE 123-bus feeder model and a realistic utility feeder model. The QSTS simulation results on the two evaluation feeders have demonstrated that the load data sets established from the proposed modeling methodology can effectively capture the load impact on feeder operations. For the realistic utility feeder, the effectiveness of the proposed methodology has also been validated by comparing the voltage characteristics of the feeder with modeled loads and the voltage characteristics of realistic voltage data from the same feeder.

中文翻译：

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准静态时间序列仿真的数据驱动配电系统负载建模

本文提出了一种针对准静态时间序列（QSTS）仿真的数据驱动的配电系统负载建模方法。所提出的方法适合于建模到客户变压器的级别，并且具有三个主要特征：1）同时考虑了负载模式多样性和秒内负载变化，2）可以为负载节点上的多个节点填充负载曲线可以定义和调整馈线的分集因数的电路； 3）负载聚合方法可用于填充处于不同负载聚合级别的不同节点的配置文件。作为建模方法的基础，已经基于从实际公用事业公司的客户变压器上收集的高分辨率负载数据建立了变异性和多样性库。拟议的建模方法已用于为IEEE 123总线馈线模型和实际的公用事业馈线模型构建负载数据集。在两个评估馈线上的QSTS仿真结果表明，从提出的建模方法建立的负载数据集可以有效地捕获负载对馈线操作的影响。对于实际的公用事业馈线，通过比较具有建模负载的馈线的电压特性和来自同一馈线的实际电压数据的电压特性，也验证了所提出方法的有效性。在两个评估馈线上的QSTS仿真结果表明，从提出的建模方法建立的负载数据集可以有效地捕获负载对馈线操作的影响。对于实际的公用事业馈线，通过比较具有建模负载的馈线的电压特性和来自同一馈线的实际电压数据的电压特性，也验证了所提出方法的有效性。在两个评估馈线上的QSTS仿真结果表明，从提出的建模方法建立的负载数据集可以有效地捕获负载对馈线操作的影响。对于实际的公用事业馈线，通过将馈线的电压特性与建模负载进行比较，并比较同一馈线的实际电压数据的电压特性，也验证了所提出方法的有效性。