能量路由器对于配电网运行优化的影响分析

Analysis on the Influence of Energy Router on the Optimal Operation of Distribution Network

能量路由器是一种基于现代电力电子技术设计的电力系统能量交换装置,可以通过灵活的控制手段实现潮流分配、电压改善、电网监控和故障隔离等功能。在能源互联网的愿景下,能量路由器将成为未来配电网中重要的基础装备。研究用于配电网络的能量路由器分析方法和模型,对于实现配电系统优化运行具有重要的意义。该文提出融入能量路由器的配网潮流综合分析模型,建立含能量路由器的配网优化运行模型,并基于IEEE 33节点系统分析应用能量路由器对改善配电网电压水平的实际效果。结果表明,通过引入能量路由器系统运行电压可以得到有效提升,系统运行状况得到较大改善。

The energy router is an energy exchange device based on the advanced power electronic technique. Using flexible and dynamic control strategies, it is able to facilitate the power flow distribution management, voltage improvement, network monitoring and fault isolation for distribution network. In the energy internet vision, the energy router will become an important hardware foundation of the future distribution network. The analysis method and model of the energy router is of great significance to realize the optimal operation of distribution system. This paper proposed the steady state power flow model of the energy router embedded distribution network and formulates the model of optimal power flow （OPF） problem. Case studies were carried out on a modified IEEE 33 bus distribution system. The role of the energy router on improving the system voltage level was discussed. The results show the energy router is able to regulate bus voltages of the system are promoted and system operation status are greatly improved.