Solid State Transformers: A Critical Review of Projects with Relevant Prototypes and Demonstrators

被引:29
作者
Cervero, David [1 ]
Fotopoulou, Maria [2 ]
Munoz-Cruzado, Jesus [1 ]
Rakopoulos, Dimitrios [2 ]
Stergiopoulos, Fotis [2 ]
Nikolopoulos, Nikos [2 ]
Voutetakis, Spyros [2 ]
Sanz, Jose Francisco [3 ]
机构
[1] CIRCE Res Ctr, 3D Ranillas Ave, Zaragoza 50018, Spain
[2] Ctr Res & Technol Hellas CERTH, Chem Proc & Energy Resources Inst CPERI, 52 Egialias Str, GR-15125 Athens, Greece
[3] Univ Zaragoza, Res Inst CIRCE, Zaragoza 50018, Spain
关键词
solid state transformer; applications; prototypes; projects; power electronics; market requirements; stakeholders; MULTILEVEL-CONVERTER; POWER; CONVERSION;
D O I
10.3390/electronics12040931
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
The ongoing energy transition has changed the architecture of electricity networks in ways that conventional power transformers are not able to cope with the new required functionalities. For this purpose, the solid state transformer (SST), which comprises state of the art power electronics with galvanic isolation to interconnect two separate alternating current (AC) or direct current (DC) power grids, is considered to be the dominant solution. The purpose of this paper is to provide a practical, application-oriented review of the SST. In this context, the main functionalities and possible applications of the SST are presented, including smart grids (SGs), data centres, railways, offshore wind farms, etc. Furthermore, the main developed SST prototypes are analysed with special focus on the related projects, demonstrators, stakeholders and rated values, e.g., voltage, switching frequency and power. The analysis is concluded with the future trends and challenges regarding the wider implementation of SST technology in the electrical grid.
引用
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页数:24
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