基于能量路由器的能源互联网分层分区优化

Hierarchical and Zonal Optimization of the Energy Router Based Energy Internet

现有研究提出了包含能量路由器（energy router,E-router）的能源互联网分层管理体系,但研究重点均聚焦在分层架构或关键设备E-router上。对于分层控制中的经济调度问题关注较多的是微网与公共电网间的交互,较少考虑多微网构成的能源互联网中引入E-router后电能传输路径的优化选择问题。因此,该文提出基于E-router的能源互联网分层分区优化策略,底层基于E-router的微网经济调度以发电成本最低为目标实行分布式局部优化。上层路由交易中心采用文中所提出的基于图论的电力库交易优化策略,通过E-router选取没有阻塞的最低网损路经进行电量传输,实现效益最大化和阻塞管理。最后,通过仿真验证了所提优化策略和模型的有效性。

A hierarchical management framework of the energy internet including energy router （E-router） is proposed in the existing research. However, the current studies focus on the hierarchical architecture or the key equipment E-router. For the problem of economic dispatch in hierarchical control, much attention is paid to the interaction between microgrids and the utility grid. The optimal selection of transmission paths between multiple microgrids has not been considered after the E-router introduced into the energy internet. Therefore, a hierarchical and zonal optimization strategy of the E-router based energy internet was proposed in this paper. The lower-level is E-router based microgrid economic dispatch which aims at minimizing generation costs and implements distributed local optimization. While, the upper-level is routing transaction center which adopts the optimization strategy of graph theory based power pool transaction proposed in this paper. By selecting the minimum loss path for each power transaction to realize the benefits maximization and congestion managements. Finally, the effectiveness of the optimization strategy and model were verified by simulations.