有源配电网线性分析方法的精度评价

A. D. Fazio, S. Perna, M. Santis
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引用次数: 0

摘要

随着分布式能源的日益普及,在有源配电网中,电压控制是一项具有挑战性的任务。电压调节装置(vrd)可能由于沿馈线的反向电流而遭受DERs的存在。对径向配电系统灵敏度分析的jacobian方法进行了扩展,提高了灵敏度分析的精度。本文首先分析了大型237节点低压配电网中不同类型vrd与der的作用;然后,评估了灵敏度矩阵和初始操作条件对线性方法(LM)精度的影响。数值结果表明,该模型具有较高的精度。
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Accuracy Evaluation of a Linear Method for Active Distribution Network Analysis
The voltage control is a challenging task in active distribution networks, due to the increasing penetration of distributed energy resources (DERs). Voltage regulation devices (VRDs) can suffer the presence of DERs due to reverse power flows along feeders. A previous Jacobian-based method for sensitivity analysis of radial distribution system, for both DERs and VRDs, is extended in terms of accuracy. The present paper analyzes firstly the actions of different types of VRDs together with DERs in a large 237-nodes LV distribution network; then, the effects of sensitivity matrices and initial operating conditions on the linear method (LM) accuracy are evaluated. Numerical results show the great accuracy of the LM.
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