Coordinated voltage-control in distribution systems under uncertainty
Coordinated voltage-control in distribution systems under uncertainty
复制标题
不确定性下配电系统的协调电压控制
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
M. Braun
中科院分区：
文献类型：
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作者：
K. Diwold;W. Yan;L. de Alvaro Garcia;L. Močnik;M. Braun
随着分布式能源单元（DER）在中压/低压水平上的集成增加，配电系统的运营商目前面临着电压控制方面的挑战。最初设计用于分布式消费和集中发电的配电系统现在面临分散式馈入。在中压/低压水平上的分散馈入会导致配电系统中的动态和局部电压违规，这是难以通过常规电压控制策略来处理的。本文提出了一种新的基于优化的配电系统电压控制框架。该框架利用配电网络（DN）的模拟并结合元启发式方法来计算发生电压违规时网络的新设置（这里是网络中分布式发电的无功功率）。结合一个真实的农村配电网的数据，对该框架的控制能力进行了测试。结果是非常有希望的，因为电压控制实现快速和准确，防止在现实系统条件下的系统操作期间的大多数电压违规。
With the increased integration of distributed energy units (DERs) on the MV/LV level, operators of distribution systems are currently facing a challenge in terms of voltage control. Distribution systems that were initially designed for distributed consumption and central generation now face decentralized feed-in. Decentralized feed-in at the MV/LV level, can lead to dynamic and local voltage violations in the distribution system, which are hard to handle via conventional voltage control strategies. This article proposes a new optimization based voltage control framework for distribution system operation. The framework utilizes a simulation of the distribution network (DN) in combination with meta-heuristics to calculate new set-ups of the network (here reactive power of distributed generation in the network), when a voltage violation occurs. The frameworks control capabilities are tested using data from a real rural distribution network in combination with a distribution state estimator. The results are very promising, as voltage control is achieved fast and accurate, preventing a majority of the voltage violations during system operation under realistic system conditions.