电网能量路由器分层结构设计及一次能量调度策略
Hierarchical Structure Design and Primary Energy Dispatching Strategy of Grid Energy Router
摘要：
能源路由器作为能源互联网的核心设备，用于管理可再生能源与电网之间的能量流动。本文提出了一种网格能源路由器的层次结构，极大地促进能源路由器之间的对等能源共享。它可以放置在关键节点，使主动配电网络发展成为多个互联的基于产消者的自治系统。针对分布式电源预测误差导致的中期调度与设备级控制不匹配的问题，提出了一种双层一次能源调度策略，充分利用多个电网能量路由器的能量缓冲。通过在上层控制中共享能量缓冲器，很好地抑制了功率在短时间尺度上的变化，并进一步优化能量缓冲器以更好地吸收变化。下位机控制结合测量信息，实时跟踪能量缓冲器的优化指令，是一个分布式过程。潮流约束假设由中期调度处理，仅考虑设备的电流约束。仿真结果验证了所提出的电网能量路由器层次结构和一次能源调度策略的有效性。
英文摘要：
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.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
