The rapid increase in the installation of renewable energy sources, particularly solar photovoltaic (PV) sources associated with unbalanced features of distribution systems (DS), disturbs the classic control strategy of voltage regulation devices and causes voltage violation problems. This paper proposes an effective control strategy for voltage regulators in the DS based on the voltage sensitivity using a multi-agent system (MAS) architecture. The features of the unbalanced distribution system (UDS) with the PV and different types and configurations of voltage regulators are considered in the proposed strategy. The novelty of the proposed method lies in realizing both the control optimality of minimizing voltage violations and the flexibility to accommodate changes in the DS topology using an MAS scheme. An advantageous feature of using the MAS scheme is the robust control performance in normal operation and against system failure. Simulation studies have been conducted using IEEE 34-node and 123-node distribution test feeders considering high PV penetration and different sun profiles. The results show that the proposed voltage control strategy can optimally and effectively manage the voltage regulators in the UDS, which decrease their operation stresses and minimize the overall voltage deviation.

中文翻译：

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使用多代理的有源不平衡配电系统中电压调节器的最优电压控制策略

可再生能源安装的快速增加，特别是与配电系统 (DS) 不平衡特性相关的太阳能光伏 (PV) 源，扰乱了电压调节设备的经典控制策略并导致电压违规问题。本文提出了一种基于电压灵敏度的 DS 中电压调节器的有效控制策略，使用多代理系统 (MAS) 架构。在所提出的策略中考虑了具有 PV 的不平衡配电系统 (UDS) 的特征以及不同类型和配置的电压调节器。所提出方法的新颖之处在于实现了最小化电压违规的控制最优性和使用 MAS 方案适应 DS 拓扑变化的灵活性。使用 MAS 方案的一个优点是在正常操作和系统故障时的鲁棒控制性能。已经使用 IEEE 34 节点和 123 节点分布测试馈线进行了模拟研究，考虑到高 PV 穿透率和不同的太阳剖面。结果表明，所提出的电压控制策略可以优化和有效地管理 UDS 中的电压调节器，从而降低它们的操作应力并最小化整体电压偏差。