论文标题
使用储能朝相平衡
Towards Phase Balancing using Energy Storage
论文作者
论文摘要
单相连接的分布式能源（例如太阳能生成和电动汽车）的临时增长可能会导致网络不平衡，对电力供应的质量和效率负面影响。为马德拉葡萄牙的马德拉岛和加利福尼亚州帕萨迪纳的电动汽车充电设施提供了案例研究。这些案例研究表明，由于大量的分布生成（DG）和电动汽车（EV）集成，相位不平衡可能发生。我们使用基于OPENDSS的模拟器在径向分布网络上进行了风格化负载流分析，以了解相位不平衡对中性和相导体损耗的负面影响，以及电压下降/上升。我们评估在分销网络中存储的集成，以此作为减轻不平衡效应的解决方案。我们提出了用于相平衡的存储操作的控制架构。从数字上讲，我们表明相对较小的存储（与不平衡幅度相比）可以显着降低网络失衡。我们将馈线的末端节点确定为安装存储的最佳位置。
Ad-hoc growth of single-phase-connected distributed energy resources, such as solar generation and electric vehicles, can lead to network unbalance with negative consequences on the quality and efficiency of electricity supply. Case-studies are presented for a substation in Madeira, Portugal and an EV charging facility in Pasadena, California. These case studies show that phase imbalance can happen due to a large amount of distributed generation (DG) and electric vehicle (EV) integration. We conducted stylized load-flow analysis on a radial distribution network using an openDSS-based simulator to understand such negative effects of phase imbalance on neutral and phase conductor losses, and in voltage drop/rise. We evaluate the integration of storage in the distribution network as a possible solution for mitigating effects caused by imbalance. We present control architectures of storage operation for phase balancing. Numerically we show that relatively small-sized storage (compared to unbalance magnitude) can significantly reduce network imbalance. We identify the end node of the feeder as the best location to install storage.
