Maintaining balanced voltages across distribution networks is becoming more challenging with increasing deployment of single-phase distributed generation and larger single-phase loads. The paper develops a reactive power compensation strategy that uses distributed solar photovoltaic (PV) inverters to mitigate such voltage unbalance. The proposed strategy takes advantage of Steinmetz design and is implemented via both decentralized and distributed control. The latter coordinates PV inverters through a communication network. We demonstrate the performance of the controllers on the IEEE 13-node feeder and a much larger taxonomy feeder (617 nodes and 1196 triplex nodes), and consider different connections of loads and PV systems. Simulation results demonstrate the trade-offs between the controllers. It is observed that the distributed controller achieves greater voltage unbalance reduction than the decentralized controller, but requires communication infrastructure.

中文翻译：

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使用分布式太阳能光伏逆变器减轻电压不平衡

随着越来越多地部署单相分布式发电和更大的单相负载，在配电网络中保持平衡电压变得越来越具有挑战性。本文开发了一种无功功率补偿策略，该策略使用分布式太阳能光伏 (PV) 逆变器来缓解这种电压不平衡。所提出的策略利用了 Steinmetz 设计，并通过分散和分布式控制来实施。后者通过通信网络协调光伏逆变器。我们展示了 IEEE 13 节点馈线和更大的分类馈线（617 个节点和 1196 个三重节点）上的控制器的性能，并考虑了负载和光伏系统的不同连接。仿真结果证明了控制器之间的权衡。