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
Comparative performance evaluation of series connected 15 kV SiC IGBT devices and 15 kV SiC MOSFET devices for MV power conversion systems
TL;DR: In this article, the authors investigate the performance of the 10-15kV SiC MOSFET and 15-kV IGBT (2 μm and 5 μm buffer layer) in very high voltage (≥13.2 kV) application.
Journal ArticleDOI
A Modular Multilevel Converter with Power Mismatch Control for Grid-Connected Photovoltaic Systems
TL;DR: In this paper, a modular multilevel power converter configuration for grid connected photovoltaic (PV) systems is proposed, which replaces the conventional bulky line frequency transformer with several high frequency transformers, potentially reducing the balance of systems cost of PV systems.
Proceedings ArticleDOI
High Power Medium Voltage Converters Enabled by High Voltage SiC Power Devices
TL;DR: The potential application examples of Solid State Transformer, Asynchronous Microgrid Power Conditioning Systems, MV motor drives, MV grid connected converters for integration of Distributed Renewable Energy Resources and Distributed Energy Storage Devices are presented.
Proceedings ArticleDOI
Performance evaluation of series connected 15 kV SiC IGBT devices for MV power conversion systems
TL;DR: In this paper, a simple RC snubber has been used to control both "dv/dt" and dynamic voltage balancing during turn-off, and the experimental results show that there is a significant difference in the dynamic voltage sharing between two unmatched 15kV IGBTs without active compensation method.
Proceedings ArticleDOI
Mobile Utility Support Equipment based Solid State Transformer (MUSE-SST) for MV Grid Interconnection with Gen3 10 kV SiC MOSFETs
TL;DR: In this article, the authors provide an overview of a MUSE-SST topology and a brief idea on control and monitoring is provided to aid researchers in designing converters for medium voltage (MV) applications.
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
High-Power Converters and AC Drives
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.