论文标题
层次结构设计和电网能量路由器的主要能源调度策略
Hierarchical Structure Design and Primary Energy Dispatching Strategy of Grid Energy Router
论文作者
论文摘要
作为能源互联网的核心设备，可以部署能源路由器，以管理可再生能源和电网之间的能量流。在本文中，提出了网格能量路由器的层次结构，以极大地促进能量路由器之间的点对点能量共享。它可以放在关键的总线上，以使主动分配网络发展为基于多个基于伪造者的自主系统。为了减轻由分布式生成的预测误差引起的中期调度和设备级控制之间的不匹配，提出了双层初级能量调度策略，以充分利用多个网格能量路由器的能量缓冲区。在上层控制中共享能量缓冲区，短时尺度的功率变化得到了很好的抑制，并且能量缓冲区得到了进一步优化以更好地吸收变化。结合了测量信息，较低级别的控制旨在在实时尺度上跟踪能量缓冲区的优化指导，这是一个分布式过程。假定功率流约束是通过中期调度来处理的，并且仅考虑设备的当前约束。最后，仿真结果证明了拟议的层次结构和电网能量路由器的一级能量派遣策略的有效性。
As a core device of energy Internet, the energy router is deployed to manage energy flow between the renewable energy and electric grid. In this paper, a hierarchical structure of grid energy router is proposed to greatly facilitate peer-to-peer energy sharing among energy routers. It can be placed at critical buses to make active distribution networks develop into multiple interconnected prosumer-based autonomous systems. To alleviate the mismatch between the medium-time dispatch and device-level control caused by the forecast error of distributed generation, a bi-level primary energy dispatching strategy is proposed to fully utilize the energy buffer of multiple grid energy routers. The power variation in short-time scale is well suppressed by sharing energy buffer in the upper-level control, and the energy buffer is further optimized to better absorb the variation. Combining measured information, the lower-level control is designed to track the optimized instruction of energy buffer in real-time scale, which is a distributed process. The power flow constraint is assumed to be handled by medium-time dispatch, and the current constraint of the device is only taken into consideration. Finally, simulation results demonstrate the effectiveness of proposed hierarchical structure and primary energy dispatching strategy of the grid energy router.
