面向交直流混合配电系统的多端口电力电子变压器研究综述  

Overview on Research of Multi-port Power Electronic Transformer Oriented for AC/DC Hybrid Distribution Grid

作　　者：李凯[1] 赵争鸣[2] 袁立强[2] 高畅毓 文武松[2] 游小杰[1] LI Kai;ZHAO Zhengming;YUAN Liqiang;GAO Changyu;WEN Wusong;YOU Xiaojie(School of Electrical Engineering,Beijing Jiaotong University,Beijing 100044,China;Department of Electrical Engineering,Tsinghua University,Beijing 100084,China)

机构地区：[1]北京交通大学电气工程学院,北京100044 [2]清华大学电机工程与应用电子技术系,北京100084

出　　处：《高电压技术》2021年第4期1233-1250,共18页High Voltage Engineering

基　　金：国家自然科学基金(52007005)。

摘　　要：多端口电力电子变压器作为交直流混合配电系统的一种关键枢纽设备,具备能量流动双向、潮流灵活调节、谐波无功可控和端口故障隔离等功能,近年来得到越来越多的关注。针对面向交直流混合配电系统的多端口电力电子变压器,层层深入推演了其拓扑结构的发展历程,从图论的角度归纳出星型和串型结构,从公共能量汇集环节形式的角度归纳出共直流母线结构和高频耦合的结构。然后,对比分析了不同拓扑结构的优劣势,并给出实际交直流混合配电系统不同需求下的拓扑结构选取原则。进一步地,总结了多端口电力电子变压器在仿真、设计、控制与保护方面的应用挑战,进而展望了未来的技术发展方向。As a key hub device of AC-DC hybrid distribution system, multi-port power electronic transformer has the functions of bidirectional energy flow, flexible power flow regulation, harmonic and reactive power control and fault isolation, which has attracted more and more attention in recent years. Targeted at the multi-port power electronic transformer oriented for AC/DC hybrid distribution system, this paper deduces the development process of its topological structure. From the perspective of graph theory, the star-type and the series-type structures are catalogued. From the form of the energy pooling part, the common DC-bus structure and high-frequency-coupling structure are summed up. Then, the advantages and disadvantages of different topological structures are compared and analyzed, and the principle of selecting topologies for different practical requirements of AC-DC hybrid distribution system is provided. Furthermore, this paper summarizes the application challenges of multi-port power electronic transformer in simulation, design, control and protection, and its prospects in future technical development are provided.

关 键 词：电力电子变压器 多端口 共直流母线 高频链 交直流混合配电系统 

分 类 号：TM41[电气工程—电器] TM721.3