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2022 | Book

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Analysis, Optimization and Control of Grid-Interfaced Matrix-Based Isolated AC-DC Converters

Author: Jaydeep Saha

Publisher: Springer Nature Singapore

Book Series : Springer Theses

Part of: Springer Professional "Wirtschaft+Technik" , Springer Professional "Technik"

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About this book

This book presents novel contributions in the development of solid-state-transformer (SST) technology both for medium-voltage (MV) and low-voltage (LV) utility grid interfaces, which can potentially augment the grid modernization process in the evolving power system paradigm. For the MV interface, a single-stage AC-DC SST submodule topology has been proposed, and its modulation and soft-switching possibilities are analysed, experimentally validated and adequately benchmarked. A control scheme with power balance capability among submodules is developed for MV grid-connected single-stage AC-DC SST for smooth operation under inevitable parameter drift scenario, and experimental validation shows excellent performance under drastic load change conditions. A novel machine learning-aided multi-objective design optimization framework for grid-connected SST is developed and experimentally validated, which equips a power electronics design engineer with meagre computational resources to find out the most optimal SST design in a convenient time-frame. This book has also contributed towards the development of dual-active-bridge (DAB)-type and non-DAB-type LV grid-interfaced isolated AC-DC converters by providing solutions to specific topology and modulation-related shortcomings in these two types of topologies. A comprehensive comparison of the DAB and non-DAB-type LVAC-LVDC converters reveals the superiority of DAB-type conversion strategy.

Table of Contents

Frontmatter
Chapter 1. Introduction
Abstract
The grids of the last century were predominantly fossil-fuel based in which power generation used to take place at a centralized generation plant and electrical power was transmitted to the consumers through the transmission and distribution networks.
Jaydeep Saha
Chapter 2. Selection of Submodule Topology in MVAC-LVDC Modular SST
Abstract
Solid-State-Transformers (SSTs) have emerged to be a competitor of line-frequency transformer (LFT) based solutions primarily because of the enhanced controllability, functionality and power density.
Jaydeep Saha
Chapter 3. Half-Bridge Matrix-Based Dual-Active-Bridge
Abstract
The paradigm shift in power systems from a centralized utility-based model to a more decentralized and distributed one, such as the smart-grid [1], has increased the need for controllability, AC-DC conversions, information flow, etc., which in turn has resulted in an increased dependency on the power electronics technology [2].
Jaydeep Saha
Chapter 4. Machine Learning Aided Design Optimization Framework for Medium-Voltage Grid-Connected Solid-State-Transformers
Abstract
Isolated multilevel converters have several emerging applications (some of which have evolved to be mature technologies), ranging from on-board Medium-Voltage (MV) distribution grid interfacing on marine vessels, Medium Voltage (MV) high-power motor drives to utility-grid based applications such as HVDC transmission interface, FACTS devices, Solid-State-Transformers (SSTs), etc.
Jaydeep Saha
Chapter 5. Power Balance Control Scheme for a Cascaded Matrix-Based Dual-Active-Bridge (CMB-DAB) Converter
Abstract
The increasing penetration of renewable energy into the present power grid and the projected increment of such renewable penetration in the future has necessitated the requirement for grid-connected AC-DC conversion systems, as explained in Chap. 1 and [9].
Jaydeep Saha
Chapter 6. Three-Phase Matrix-Based Isolated AC-DC Conversion
Abstract
With the increasing penetration of intermittent renewable energy into the grid and the growing demand for electric vehicles, battery energy storage systems (BESS) have matured to be an economically viable energy storage option at various power levels for the LVAC grid
Jaydeep Saha
Chapter 7. Conclusions and Future Work
Abstract
The traditional power system is predominantly fossil-fuel based and has been studied and optimized for about a century to facilitate electrical power generation, transmission and distribution with different degrees of reliability and resilience depending on the constraints pertaining to the region of operation. This conventional power system is unidirectional in nature both in terms of power flow as well as information, i.e. from the generation sources to the loads (predominantly passive loads).
Jaydeep Saha
Backmatter
Metadata
Title
Analysis, Optimization and Control of Grid-Interfaced Matrix-Based Isolated AC-DC Converters
Author
Jaydeep Saha
Copyright Year
2022
Publisher
Springer Nature Singapore
Electronic ISBN
978-981-19-4902-9
Print ISBN
978-981-19-4901-2
DOI
https://doi.org/10.1007/978-981-19-4902-9