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Three potential options to implement multicore planar transformers using a printed circuit board as windings are presented. The first option utilises a distributed transformer configuration where smaller transformer elements with separate cores are interconnected to function as a single transformer. The second option has a lumped core configuration which uses multiple cores arranged to function as...
ISOV (Input Series Output Parallel) modular DAB (Dual Active Bridge) converter based topologies have been mostly considered for solid-state transformer (SST) based power substation design, involving multilevel converters at the medium-voltage side. As DAB converter is one of the core components of this topology, an important question to address is thus the freewheeling currents of DAB which increases...
This paper concerns the design of a Solid-State Transformer (SST) based grid integrated battery charger with an isolated bi-directional dc-dc converter to maintain the overall system competitiveness. The proposed full bridge DC-DC converter exploits the shoot through mode in the V2G mode for the boosting purpose, which is the uniqueness of the proposed topology. The inclusion of SST in the design...
The concept of Solid-State Transformer (SST) is a subject of vivid attention and extensive research in the recent decade, motivated by their potential impact extending well beyond 50 Hz transformers for power distributions. With the introduction of wide band-gap semiconductor devices such as GaN and SiC, it is starting to look more likely to see SST in field applications in the near future. This paper...
In this paper study on solid-state medium-frequency transformer isolated substation is modeled in detail. The substation is formed by AC/DC rectifier, six-pulse DC/AC inverter, high-frequency transformer, DC/AC six-diode rectifier and DC/AC inverter. Both AC/DC rectifier at high AC grid-1 side and DC/AC inverter at lower grid-2 side are controlled by proportional resonant controller and are interfaced...
In this paper, we propose a new model of environment friendly solar-piezoelectric hybrid power plant that solely uses renewable energy to generate electricity and is capable of being practically implemented in railway stations. This model plant utilizes both photovoltaic panels which convert sunlight directly into electricity and piezoelectric pads which convert the mechanical stress exerted on it...
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