基于电能路由器的配电网稳定运行与故障恢复分层能量优化

为了解决目前基于电能路由器(EER)的配电网能量优化普遍缺乏对故障恢复的研究及能量路由损耗过大的问题,同时考虑稳定运行与故障恢复2种工况,提出了一种基于EER的配电网分层能量优化策略,其包括下层局域电网(E-LAN)内的能量优化以及上层广域电网(E-WAN)内的能量路由优化.对于稳定运行工况,提出了以最小化运行总成本为...

Hierarchical energy optimization based on electric energy router for distribution network in stable operation and fault recovery

To solve the problem of lack of research on fault recovery and excessive loss of energy routing in distribution network energy optimization based on EER(Electric Energy Router),the hierarchical energy optimization strategy of distribution network based on EER is proposed considering both stable operation and fault recovery operation conditions, which includes energy optimization in lower-layer E-LAN(Energy Local Area Network) and energy routing optimization in upper-layer E-WAN(Energy Wide Area Network). For stable operation condition, the E-LAN energy optimization strategy to minimize the total operation cost is proposed, together with the E-WAN routing optimization strategy using for minimum loss local consumption, thus ensuring the local consumption of renewable energy and minimizing the power loss. For the fault recovery condition, the E-LAN energy optimization strategy to maximize the accumulated power on the grid is proposed, together with the E-WAN routing optimization strategy with minimum loss and multi-source cooperation is proposed, which can minimize the power loss and improve the load survival rate after fault while giving priority of power supply to the key load. Finally, the feasibility, effectiveness, and superiority of the proposed energy optimization strategy are verified through the simulation analysis and comparison based on the hierarchical distribution network model.