1st Edition

Power-Flow Modelling of HVDC Transmission Systems

By Shagufta Khan, Suman Bhowmick Copyright 2023
    290 Pages 251 B/W Illustrations
    by CRC Press

    This book deals exclusively with the power-flow modelling of HVDC transmission systems. Different types of HVDC transmission systems, their configurations/connections and control techniques are covered in detail. Power-Flow modelling of both LCC- and VSC-based HVDC systems is covered in this book. Both the unified and the sequential power-flow methods are addressed. DC grid power-flow controllers and renewable energy resources like offshore wind farms (OWFs) are also incorporated into the power-flow models of VSC-HVDC systems. The effects of the different power-flow methods and HVDC control strategies on the power-flow convergence are detailed along with their implementation.

    Features:

    • Introduces the power-flow concept and develops the power-flow models of integrated AC/DC systems.
    • Different types of converter control are modelled into the integrated AC/DC power-flow models developed.

    • Both unified and the sequential power-flow methods are addressed.

    • DC grid power-flow controllers like the IDCPFC and renewable energy resources like offshore wind farms (OWFs) are introduced and subsequently modelled into the power-flow algorithms.

    • Integrated AC/DC power-flow models developed are validated by implementation in the IEEE 300-bus and European 1354-bus test networks incorporating different HVDC grids.

    This book aims at researchers and graduate students in Electrical Engineering, Power Systems, and HVDC Transmission.

    Preface

    Authors

    List of Abbreviations

    List of Symbols

    Chapter 1: HVDC Transmission Systems
     1.1 Introduction
     1.2 Interconnections of HVDC Systems 
     1.3 Control of HVDC Systems  
     1.4 Introduction to DC Power-Flow Controllers 
     1.5 Integration of Renewable Energy Sources (RES) to HVDC Grid 
     1.6 Introduction to the Power-Flow Problem and the Newton-Raphson Method 
     1.7 Introduction to the Power-Flow Modelling of LCC-Based Integrated AC-DC Systems  
     1.8 Introduction to the Power-Flow Modelling of VSC-Based Integrated AC-DC Systems
     1.9 Organization of the Book

    Chapter 2: Power-Flow Modelling of AC Power Systems integrated with LCC-based Multiterminal DC Grids 
     2.1 Introduction 
     2.2 Modelling of Integrated AC-MLDC Systems 
     2.3 Control Strategies for MLDC Grids 
     2.4 Power Flow Equations of Integrated AC-MLDC Systems 
     2.5 Implementation of Power-Flow in Integrated AC-MLDC Systems 
     2.6 Case Studies and Results
     2.7 Summary 
      
    Chapter 3: Power Flow Modelling of AC Power Systems integrated with VSC-based Multiterminal DC Grids employing DC Slack-Bus Control 
     3.1 Introduction 
     3.2 Modelling of Integrated AC-MVDC Systems Employing DC Slack Bus Control 
     3.3 Implementation of Power-Flow in Integrated AC-MVDC Systems 
     3.4 Case Studies and Results
     3.5 Summary 
      
    Chapter 4: Power-Flow Modelling of AC Power Systems integrated with VSC-based Multiterminal DC Grids employing DC Voltage Droop Control
     4.1 Introduction 
     4.2 Modelling of Integrated AC-MVDC Systems Employing DC Voltage Droop Control 
     4.3 Power Flow Equations of Integrated AC- MVDC Systems Employing DC Voltage Droop Control 
     4.4 DC Voltage Droop Control in MVDC Systems
     4.5 Modelling of AC-MVDC Systems with DC Voltage Droop Control 
     4.6 Case Studies and Results 
     4.7 Summary

    Chapter 5: Power-Flow Modelling of AC Power Systems integrated with VSC-based Multiterminal DC (AC-MVDC) Grids incorporating Interline DC Power-Flow Controller (IDCPFC) 
     5.1 Introduction 
     5.2 Modelling of AC-MVDC Systems Incorporating IDCPFCs 
     5.3 Power-Flow Equations of Integrated AC-MVDC Systems Incorporating IDCPFC  
     5.4 Implementation of Power-Flow in Integrated AC-MVDC Systems Incorporating IDCPFC
     5.5 Case Studies and Results
     5.6 Summary 
      
    Chapter 6: Power-Flow Modelling of AC Power Systems integrated with VSC-based Multiterminal DC (AC-MVDC) Grids incorporating Renewable Energy Sources 
     6.1 Introduction 
     6.2 Modelling of AC-MVDC Systems Incorporating Renewable Energy Sources 
     6.3 Power-Flow Equations of Integrated AC-MVDC Systems with Renewable Energy Sources
     6.4 Modelling of AC-MVDC Systems Employing DC Slack-Bus Control
     6.5 Modelling of AC-MVDC Systems Employing DC Voltage Droop Control
     6.6 Case Studies and Results
     6.7 Summary 

    Biography

    Dr. Shagufta Khan received her Ph.D. degree in Electrical Engineering from Delhi Technological University, Delhi, India. She is currently an Assistant Professor with the School of Electrical, Electronics and Communication Engineering, Galgotias University, Greater Noida, India. Her research interests include power systems and renewable energy. She has several publications in national and international journals and conferences including IEEE Transactions on Sustainable Energy, Electrical Power System Research (Elsevier), International Journal of Electrical Power and Energy Systems (Elsevier), Electrical Energy Journal (Springer), AIN Shams Engineering Journal (Elsevier), and Arabian Journal for Science and Engineering (Springer) to her credit.

    Prof. Suman Bhowmick received his Ph.D. in Electrical Engineering in 2010. He has been working as a Professor in the Department of Electrical Engineering, Delhi Technological University since 2012. His areas of interest are power systems in general, and FACTS and HVDC systems in particular. He has several publications in national and international journals and conferences to his credit. He has also authored a book on FACTS which was published by the CRC Press, USA in 2016.