Journal ArticleDOI
A Transformerless Intelligent Power Substation: A three-phase SST enabled by a 15-kV SiC IGBT
Krishna Mainali,Awneesh Tripathi,Sachin Madhusoodhanan,Arun Kadavelugu,Dhaval Patel,Samir Hazra,Kamalesh Hatua,Subhashish Bhattacharya +7 more
TLDR
The solid-state transformer (SST) is a promising power electronics solution that provides voltage regulation, reactive power compensation, dc-sourced renewable integration, and communication capabilities, in addition to the traditional step-up/stepdown functionality of a transformer as mentioned in this paper.Abstract:
The solid-state transformer (SST) is a promising power electronics solution that provides voltage regulation, reactive power compensation, dc-sourced renewable integration, and communication capabilities, in addition to the traditional step-up/step-down functionality of a transformer. It is gaining widespread attention for medium-voltage (MV) grid interfacing to enable increases in renewable energy penetration, and, commercially, the SST is of interest for traction applications due to its light weight as a result of medium-frequency isolation. The recent advancements in silicon carbide (SiC) power semiconductor device technology are creating a new paradigm with the development of discrete power semiconductor devices in the range of 10-15 kV and even beyond-up to 22 kV, as recently reported. In contrast to silicon (Si) IGBTs, which are limited to 6.5-kV blocking, these high-voltage (HV) SiC devices are enabling much simpler converter topologies and increased efficiency and reliability, with dramatic reductions of the size and weight of the MV power-conversion systems.read more
Citations
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Proceedings ArticleDOI
Power quality coefficients for power electronic transformers
TL;DR: In this article, three basic configurations of power electronic transformer for distributive networks are proposed, which include different types of output inverters, and a comparison of these topologies based on value of power quality coefficient is performed.
Journal ArticleDOI
Soft-Switching Smart Transformer Design and Application for Photovoltaic Integrated Smart City Power Distribution
Burak Esenboga,Tugce Demirdelen +1 more
TL;DR: In this article , the authors proposed a three-stage (AC-DC-DCDC-AC) smart transformer model and power control strategy for solar PV power plant integrated smart grids.
Journal ArticleDOI
MV Power Conversion Systems Enabled by High-Voltage SiC Devices [Happenings]
TL;DR: In this article, the authors present a medium voltage (MV0) power conversion system that is enabled by high-voltage silicon carbide (SiC) devices, where the transformers convert thousands of volts MV into lower voltages that can be safely used in homes and businesses.
Proceedings ArticleDOI
A Single Gate Driver-based Four-stage High-voltage SiC Switch Having Dynamic Voltage Balancing Capability
TL;DR: In this paper, a four-stage 4.8 kV HV switch with a new voltage balancing technique, which involves the use of a single gate driver and this architecture is built using four (4) 1.2 kV SiC MOSFETs.
Proceedings ArticleDOI
The simplified topology of three-phase SST based on 15kV SIC devices and the control strategy under unbalanced grid voltage
Chenghao Yu,Yubin Wang,Houzhi Li +2 more
TL;DR: In this article, a simplified 5.96 MVA three-phase SST system based on 15kV silicon carbide (SIC) power semiconductor devices is shown in order to solve some disadvantages of the three phase cascaded modular SST.
References
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Journal ArticleDOI
A three-phase soft-switched high power density DC/DC converter for high power applications
TL;DR: In this paper, three DC/DC converter topologies suitable for high power-density high power applications are presented, which operate in a soft-switched manner, making possible a reduction in device switching losses and an increase in switching frequency.
Book
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TL;DR: In this article, the authors present a model for high-power switchings with SCR rectifiers and demonstrate how to use SCR Rectifiers to control high power switchings.
Journal ArticleDOI
Solid-State Transformer and MV Grid Tie Applications Enabled by 15 kV SiC IGBTs and 10 kV SiC MOSFETs Based Multilevel Converters
Sachin Madhusoodhanan,Awneesh Tripathi,Dhaval Patel,Krishna Mainali,Arun Kadavelugu,Samir Hazra,Subhashish Bhattacharya,Kamalesh Hatua +7 more
TL;DR: In this article, a transformerless intelligent power substation (TIPS) is proposed as a three-phase SST interconnecting a 13.8 kV distribution grid with a 480 V utility grid.
Journal ArticleDOI
Smart grid technologies
TL;DR: Development of 15-kV SiC IGBTs and their impact on utility applications is discussed, and the need for power semiconductor devices with high-voltage, high- frequency, and high-temperature operation capability is growing.