多源数据驱动的配电网网损精确分析方法

Accurate Analysis Method for Grid Loss of Distribution Network Driven by Multi-source Data

为解决现有方法在分析实际配电网损耗方面存在精度不高的问题,结合高级量测体系AMI(advanced metering infrastructure)和微型同步相量测量单元μPMU(micro-synchronous phasor measurement unit)的实时量测数据提出一种网损分析方法。首先,依时标对AMI和μPMU采集的数据进行对齐处理,得到同一时间断面上多源量测数据;其次,利用多源量测数据并基于前推回带体系进行窃电分析以及计算窃电量;最后,考虑窃电情况实现精确网损分析。通过对某69节点的配电网开展网损分析的仿真结果表明,所提方法能够精准分析配电网网损。

Since the existing methods have a low accuracy when analyzing the grid loss of distribution network in practice,an analysis method for grid loss is proposed in this paper by combining the real-time measurement data of an advanced metering infrastructure(AMI)and a micro-synchronous phasor measurement unit(μPMU).First,the precise timestamp is used for the alignment of data measured by the AMI andμPMU,thus obtaining the multi-source measurement data at the same time section.Second,the generated multi-source measurement data is used for detecting power theft and calculating the quantity of stolen electricity,which is based on the forward and backward sweep algorithm.Third,the accurate grid loss analysis is realized considering the energy theft.The grid loss of one 69-node distribution network is analyzed,and simulation results verify that the proposed method can accurately analyze the grid loss.