直流电力分组传输技术研究综述与展望

Review and Prospect of DC Power Packet Transmission Technology

在可再生能源大范围渗透,传统电网向能源互联网转变的大趋势之下,传统的电力系统设备已经难以满足未来电网实现能量多向流动、功率流主动调控、电能精准供应的要求,难以适应未来电力市场化的需求。在此背景下,电力分组化技术和电力包调度系统应运而生,其不但可以利用电力分组化的手段实现对电力的精准定量供应,电力包路由器更能实现对网络功率流的主动管理及调控。全面介绍了电力包及其调度系统的相关原理及关键设备结构。总结了包括直流配电网构建、供电控制以及电力包传输策略3个方面的现有研究成果,分析了其中存在的问题与不足,并在已有研究的基础上提出了自己的模型架构和未来研究方案等。最后对相关研究的难点和未来发展方向进行了总结以及展望。

In the trend of large-scale penetration of renewable energy and transformation of traditional power grid to energy Internet, conventional equipment of power grid systems cannot meet the requirements of multi-directional energy flow ability, active control ability of power flow and accurate power supply ability in future power grid. Also, it is difficult to meet the demand of future power market. On this basis, power packetization technology and power packet dispatching system emerge in response to proper time and condition. It can supply power accurately and quantitatively by means of power packetization, and realize active management and regulation of network power flow by using power packet router. This paper summarizes existing research achievements in three aspects, including DC distribution network construction, power supply control, and power packet transmission strategy. Then their problems and shortcomings are analyzed. Based on existing researches, the model structure and future research scheme are put forward. Finally, the difficulties and future directions of related researches are summarized and prospected.