Modeling and Control of SiC-Based High-Frequency Magnetic Linked Converter for Next Generation Solid State Transformers

2020 ◽  
Vol 35 (1) ◽  
pp. 549-559 ◽  
Author(s):  
Md. Ashib Rahman ◽  
Md. Rabiul Islam ◽  
Kashem M. Muttaqi ◽  
Danny Sutanto
Keyword(s):  
Solid State ◽  
High Frequency ◽  
Next Generation ◽  
Modeling And Control ◽  
Solid State Transformers ◽  
And Control

scholarly journals Solid State Transformers: Concepts, Classification, and Control

Energies ◽  
2020 ◽  
Vol 13 (9) ◽  
pp. 2319 ◽  
Author(s):  
Mohammed Azharuddin Shamshuddin ◽  
Felix Rojas ◽  
Roberto Cardenas ◽  
Javier Pereda ◽  
Matias Diaz ◽  
...  
Keyword(s):  
Solid State ◽  
Power Distribution ◽  
Smart Grids ◽  
Energy Demand ◽  
Material Selection ◽  
Distribution Networks ◽  
Renewable Energy Resources ◽  
Power Sources ◽  
Solid State Transformers ◽  
And Control

Increase in global energy demand and constraints from fossil fuels have encouraged a growing share of renewable energy resources in the utility grid. Accordingly, an increased penetration of direct current (DC) power sources and loads (e.g., solar photovoltaics and electric vehicles) as well as the necessity for active power flow control has been witnessed in the power distribution networks. Passive transformers are susceptible to DC offset and possess no controllability when employed in smart grids. Solid state transformers (SSTs) are identified as a potential solution to modernize and harmonize alternating current (AC) and DC electrical networks and as suitable solutions in applications such as traction, electric ships, and aerospace industry. This paper provides a complete overview on SST: concepts, topologies, classification, power converters, material selection, and key aspects for design criteria and control schemes proposed in the literature. It also proposes a simple terminology to identify and homogenize the large number of definitions and structures currently reported in the literature.

scholarly journals Review of a Disruptive Vision of Future Power Grids: A New Path Based on Hybrid AC/DC Grids and Solid-State Transformers

2021 ◽  
Vol 13 (16) ◽  
pp. 9423
Author(s):  
Vitor Monteiro ◽  
Julio S. Martins ◽  
João Carlos Aparício Fernandes ◽  
Joao L. Afonso
Keyword(s):  
Solid State ◽  
Power Quality ◽  
High Frequency ◽  
Universal Access ◽  
Renewable Energy Sources ◽  
Low Frequency ◽  
Power Grids ◽  
Energy Sources ◽  
Solid State Transformers ◽  
Port Systems

Power grids are evolving with the aim to guarantee sustainability and higher levels of power quality for universal access to electricity. More specifically, over the last two decades, power grids have been targeted for significant changes, including migration from centralized to decentralized paradigms as a corollary of intensive integration of novel electrical technologies and the availability of derived equipment. This paper addresses a review of a disruptive vision of future power grids, mainly focusing on the use of hybrid AC/DC grids and solid-state transformers technologies. Regarding hybrid AC/DC grids in particular, they are analyzed in detail in the context of unipolar and bipolar DC grids (i.e., two-wire or three-wire DC grids), as well as the different structures concerning coupled and decoupled AC configurations with low-frequency or high-frequency isolation. The contextualization of the possible configurations of solid-state transformers and the different configurations of hybrid transformers (in the perspective of offering benefits for increasing power quality in terms of currents or voltages) is also analyzed within the perspective of the smart transformers. Additionally, the paper also presents unified multi-port systems used to interface various technologies with hybrid AC/DC grids, which are also foreseen to play an important role in future power grids (e.g., the unified interface of renewable energy sources and energy storage systems), including an analysis concerning unified multi-port systems for AC or DC grids. Throughout the paper, these topics are presented and discussed in the context of future power grids. An exhaustive description of these technologies is made, covering the most relevant and recent structures and features that can be developed, as well as the challenges for the future power grids. Several scenarios are presented, encompassing the mentioned technologies, and unveiling a progressive evolution that culminates in the cooperative scope of such technologies for a disruptive vision of future power grids.

Wavefront Error Modeling and Control Method for Large Aperture Optical Unit in High Power Solid-State Laser

2017 ◽  
Vol 37 (7) ◽  
pp. 0714003
Author(s):  
姚 超 Yao Chao ◽  
王 辉 Wang Hui ◽  
张 政 Zhang Zheng ◽  
刘天野 Liu Tianye
Keyword(s):  
Solid State ◽  
High Power ◽  
Control Method ◽  
Solid State Laser ◽  
Error Modeling ◽  
Modeling And Control ◽  
Large Aperture ◽  
Wavefront Error ◽  
And Control ◽  
Optical Unit

Modeling and Control of a Multiphase Modular High-Frequency Converter/Inverter for Vehicle Applications

2018 ◽  
Vol 27 (03n04) ◽  
pp. 1840014
Author(s):  
Kiarash Ahi
Keyword(s):  
High Frequency ◽  
Control Algorithm ◽  
Frequency Converter ◽  
Switching Frequency ◽  
Effective Frequency ◽  
Boost Converters ◽  
Modeling And Control ◽  
Equivalent Models ◽  
Simulation Results ◽  
And Control

This paper presents a novel control algorithm for a modular high-frequency converter. This control algorithm is designed to achieve an effective frequency higher than the switching frequency on the passive elements. As a result, the ripple on the output is suppressed, and smaller capacitors can be used. In this work, the modular high-frequency converter is modeled by equivalent boost converters. Based on the equivalent models a control algorithm is developed. The accuracy of the algorithm has been verified by simulation results using PLECS in the MATLAB/Simulink environment.

Sign in / Sign up

Export Citation Format

Share Document