论文标题
通过低压测量值实时监视中型电压的数字分配功率变压器
Digital Twin of Distribution Power Transformer for Real-Time Monitoring of Medium Voltage from Low Voltage Measurements
论文作者
论文摘要
由于电力市场放松管制以及分布式能源的广泛部署，对分销系统的实时监控是必要的。为了监视亚周期细节的电压和电流，通常需要对电网操作进行重大投资和中断。在这项工作中，根据所述T/f的数学模型，使用了分布变压器（T/F）的低压（LV）侧（T/F）的测量值。本质上，该模型是T/F的MV侧的挖掘双胞胎。该方法计算电压和电流的T/F MV波形，并像仪器T/F一样准确地捕获了所有谐波，并且不受非对称负载的影响，并识别了t/f的MV侧的大多数SYS-TEM故障。避免MV仪器的分配T/F的数字双方法可启动监视，准确性不受欢迎，并且可能很容易部署。来自实际的MV-LV T/F的现场数据与模拟重新构成显示数字双胞胎方法的功效。
Real-time monitoring of distribution systems has be-come necessary, due to the deregulation of electricity markets and the wide deployment of distributed energy resources. To monitor voltage and current at sub-cycle detail, requires, typically, major investment undertaking and disruptions to the operation of the grid. In this work, measurements of the low voltage (LV) side of distribution transformers (T/F) are used to calculate in real time the waveforms of their medium voltage (MV) sides, based on a mathematical model of said T/F. This model is, essentially, the dig-ital twin of the MV side of the T/F. The method calculates T/F MV waveforms of voltage and current, and active and reactive power as accurately as an instrument T/F, captures all harmonics con-tent, is unaffected by asymmetrical loading and identifies most sys-tem faults on the MV side of the T/F. The digital twin method en-ables monitoring of distribution T/F that avoids MV instrumenta-tion, does not suffer in accuracy and may be readily deployable. Field data from an actual MV-LV T/F, agree with simulation re-sults showcasing the efficacy of the digital twin method.
