The growth of local renewable energy sources and heavy loads in power distribution networks, such as the increasing electric vehicles charging stations, causes several issues with a direct impact on the stability of the electrical grid. An attempt to overcome such issues is the microgrid concept, which has the grid structured into local sub-grids that manage their power and energy balancing. A microgrid may operate connected or disconnected from the main grid, being dynamically necessary to guarantee a power balancing between local loads and sources. Furthermore, as several power units are connected to the same microgrid, equity is also required in terms of power sharing. Current work explores a scenario of an island operation of a microgrid with multiple sources, including battery storage systems and sharing power with multiple loads, including electric vehicle chargers, a scenario appropriated to a city grid. A local control solution for a stable operation of the microgrid in terms of both power balancing and power sharing is presented and validated through numerical and experimental results.

本地可再生能源的增长和配电网络的沉重负担，例如不断增加的电动汽车充电站，引起了几个问题，这些问题直接影响电网的稳定性。克服这些问题的一种尝试是微电网概念，该概念将电网构造为管理其功率和能量平衡的本地子电网。微电网可以在与主电网连接或断开的情况下运行，这是动态必要的，以确保本地负载和电源之间的功率平衡。此外，由于将多个电源单元连接到同一微电网，因此在功率共享方面也需要公平。当前的工作探索了一个微电网孤岛运行的场景，该电网有多个来源，包括电池存储系统以及与多个负载共享电力，包括电动汽车充电器，这是适用于城市电网的方案。提出并通过数值和实验结果验证了微电网在功率平衡和功率共享方面稳定运行的本地控制解决方案。