Probabilistic methodology for Technical and Non-Technical Losses estimation in distribution system

Probabilistic methodology for Technical and Non-Technical Losses estimation in distribution system
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配电系统技术和非技术损失估计的概率方法

DOI:
10.1016/j.epsr.2012.12.008
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发表时间:
2013
影响因子:
3.9
通讯作者:
J. Coelho
J. Coelho
中科院分区:
工程技术3区
文献类型:
--
作者:
E. A. C. Neto;J. Coelho

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这项工作设想的发展和应用的概率方法的技术和非技术损失估计在馈线中存在的负载变化的大型配电系统。由于负载的这种变化,馈线损耗也被表征为与统计矩(诸如均值和方差)相关的随机变量。将馈线中的测量能量消耗与公用事业的计费能量加上技术损失进行比较,进行能量平衡并估计非技术损失。沿着馈线安装仪表,允许将其划分为子网络,因此,每个电路的非技术损耗的估计具有更高的精度。这种方法在智能电网离现实还很远、资源稀缺的国家是有用的。一个真实的系统被用作概率能量平衡的案例研究。
This work contemplates the development and application of a probabilistic methodology for the Technical and Non-Technical Losses estimation in a feeder in the presence of load variations of a large distribution system. Due to such variations in load, the feeder losses are also characterized as random variables which are related to statistical moments, such as mean and variance. Comparing the Measured Energy consumption in the feeder with the Billed Energy by the utility plus the Technical Losses, the energy balance is made and the Non-Technical Losses are estimated. Along a feeder, meters are installed allowing its division into sub-networks, therefore, the Non-Technical Losses of each circuit are estimated with greater precision. This methodology is useful in countries that Smart Grids are far from reality and the resources are scarce. A real system was used as a case study for the Probabilistic Energy Balance developed.