Power-Flow Modelling of HVDC Transmission Systems

Power-Flow Modelling of HVDC Transmission Systems
Author: Shagufta Khan
Publisher: CRC Press
Total Pages: 291
Release: 2022-12-23
Genre: Technology & Engineering
ISBN: 1000655024

Discusses steady state (i.e. power flow) solution of integrated AC/DC system for operating any multi-terminal HVDC grid within an existing AC grid Presents a detailed theoretical analysis of the system equilibrium under the different types of converter control HVDC power-flow models developed have been validated by implementation in IEEE 300-bus test network integrated with different HVDC grids DC grid power-flow controllers like the IDCPFC has been introduced and subsequently modeled into the powerflow algorithm Both unified and sequential powerflow models are covered

HVDC Power Transmission Systems

HVDC Power Transmission Systems
Author: K. R. Padiyar
Publisher:
Total Pages: 0
Release: 2012
Genre: Electric power transmission
ISBN: 9788122430936

"The application of HVDC technology has received new impetus with the evacuation of large quantum of power from remote hydro and thermal stations. In addition, the controllability of power flows in the power grid has added a new dimension to the use of HVDC links in the context of developing Smart Grids. The power transfer from off- shore wind generation is another new application. DC transmission at distribution level voltages (using VSC-HVDC) is also being considered for integration of distributed generation in the power grid. This edition is a complete revision of the first edition taking into account the developments that have taken place since the first edition was published. In particular, the emerging technology ofVSC-HVDC links is described in detail. Instead of adding new chapters to present the new developments, the new material is added at the appropriate places. For example, the analysis ofVSC is presented in chapters 2 and 3 along with the thyristor based Line Commutated Converters (LCC). Practically, in all chapters, there is discussion of VSC-HVDC. The book also presents other developments such as the application of hybrid active filters, capacitor commutated converters, double and triple tuned filters etc. Chapter 10 presents power flow analysis in AC-DC systems based on a novel approach. The modeling, simulation and study of interactions among AC-DC systems is covered in the last 2 chapters without missing any relevant topic. The appendices give details of thyristor and IGBT valves, transient simulation of converters and DC lines, synchronous generator modeling, SSR analysis, CIGRE Benchmark models and design of DC and AC voltage controls in VSC-HVDC links. Several examples and case studies are included to illustrate the concepts. The book is useful as text/reference to students, researchers and engineers from utilities/industries who wish to study and apply HVDC power transmission."--Page 4 of cover.

Power System Modeling, Computation, and Control

Power System Modeling, Computation, and Control
Author: Joe H. Chow
Publisher: John Wiley & Sons
Total Pages: 664
Release: 2020-01-21
Genre: Technology & Engineering
ISBN: 1119546877

Provides students with an understanding of the modeling and practice in power system stability analysis and control design, as well as the computational tools used by commercial vendors Bringing together wind, FACTS, HVDC, and several other modern elements, this book gives readers everything they need to know about power systems. It makes learning complex power system concepts, models, and dynamics simpler and more efficient while providing modern viewpoints of power system analysis. Power System Modeling, Computation, and Control provides students with a new and detailed analysis of voltage stability; a simple example illustrating the BCU method of transient stability analysis; and one of only a few derivations of the transient synchronous machine model. It offers a discussion on reactive power consumption of induction motors during start-up to illustrate the low-voltage phenomenon observed in urban load centers. Damping controller designs using power system stabilizer, HVDC systems, static var compensator, and thyristor-controlled series compensation are also examined. In addition, there are chapters covering flexible AC transmission Systems (FACTS)—including both thyristor and voltage-sourced converter technology—and wind turbine generation and modeling. Simplifies the learning of complex power system concepts, models, and dynamics Provides chapters on power flow solution, voltage stability, simulation methods, transient stability, small signal stability, synchronous machine models (steady-state and dynamic models), excitation systems, and power system stabilizer design Includes advanced analysis of voltage stability, voltage recovery during motor starts, FACTS and their operation, damping control design using various control equipment, wind turbine models, and control Contains numerous examples, tables, figures of block diagrams, MATLAB plots, and problems involving real systems Written by experienced educators whose previous books and papers are used extensively by the international scientific community Power System Modeling, Computation, and Control is an ideal textbook for graduate students of the subject, as well as for power system engineers and control design professionals.

High Voltage Direct Current Transmission

High Voltage Direct Current Transmission
Author: Dragan Jovcic
Publisher: John Wiley & Sons
Total Pages: 696
Release: 2019-07-01
Genre: Technology & Engineering
ISBN: 1119566614

Presents the latest developments in switchgear and DC/DC converters for DC grids, and includes substantially expanded material on MMC HVDC This newly updated edition covers all HVDC transmission technologies including Line Commutated Converter (LCC) HVDC; Voltage Source Converter (VSC) HVDC, and the latest VSC HVDC based on Modular Multilevel Converters (MMC), as well as the principles of building DC transmission grids. Featuring new material throughout, High Voltage Direct Current Transmission: Converters, Systems and DC Grids, 2nd Edition offers several new chapters/sections including one on the newest MMC converters. It also provides extended coverage of switchgear, DC grid protection and DC/DC converters following the latest developments on the market and in research projects. All three HVDC technologies are studied in a wide range of topics, including: the basic converter operating principles; calculation of losses; system modelling, including dynamic modelling; system control; HVDC protection, including AC and DC fault studies; and integration with AC systems and fundamental frequency analysis. The text includes: A chapter dedicated to hybrid and mechanical DC circuit breakers Half bridge and full bridge MMC: modelling, control, start-up and fault management A chapter dedicated to unbalanced operation and control of MMC HVDC The advancement of protection methods for DC grids Wideband and high-order modeling of DC cables Novel treatment of topics not found in similar books, including SimPowerSystems models and examples for all HVDC topologies hosted by the 1st edition companion site. High Voltage Direct Current Transmission: Converters, Systems and DC Grids, 2nd Edition serves as an ideal textbook for a graduate-level course or a professional development course.

Power-Flow Modeling of HVDC Transmission Systems

Power-Flow Modeling of HVDC Transmission Systems
Author: Shagufta Khan
Publisher: CRC Press
Total Pages: 0
Release: 2022-09-28
Genre: Technology & Engineering
ISBN: 9781003252078

"This book deals exclusively with the power-flow modelling of HVDC systems alongwith details of different type of HVDC systems, their configuration/connections, adopted control techniques, and gradually builds upto power-flow modelling concept. It covers LCC- and VSC-based HVDC systems followed by power-flow modelling of HVDC systems integrated with renewable energy sources. It details DC grid power-flow controllers into the power-flow modelling of VSC-HVDC systems. The effect of the power-flow approaches and HVDC control strategies is detailed with their implementation. Features: Discusses steady state (i.e., power flow) solution of integrated AC/DC system for operating any multi-terminal HVDC grid within an existing AC grid. Presents a detailed theoretical analysis of the system equilibrium under the different types of converter control. HVDC power-flow models developed have been validated by implementation in IEEE 300-bus test network integrated with different HVDC grids. DC grid power-flow controllers like the IDCPFC has been introduced and subsequently modeled into the powerflow algorithm. Both unified and sequential powerflow models are covered. This book aims at Researchers and Graduate students in Electrical Engineering, Power Systems, and HVDC Transmission"--

Flexible AC Transmission Systems: Modelling and Control

Flexible AC Transmission Systems: Modelling and Control
Author: Xiao-Ping Zhang
Publisher: Springer Science & Business Media
Total Pages: 569
Release: 2012-02-24
Genre: Technology & Engineering
ISBN: 3642282415

The extended and revised second edition of this successful monograph presents advanced modeling, analysis and control techniques of Flexible AC Transmission Systems (FACTS). The book covers comprehensively a range of power-system control problems: from steady-state voltage and power flow control, to voltage and reactive power control, to voltage stability control, to small signal stability control using FACTS controllers. In the six years since the first edition of the book has been published research on the FACTS has continued to flourish while renewable energy has developed into a mature and booming global green business. The second edition reflects the new developments in converter configuration, smart grid technologies, super power grid developments worldwide, new approaches for FACTS control design, new controllers for distribution system control, and power electronic controllers in wind generation operation and control. The latest trends of VSC-HVDC with multilevel architecture have been included and four completely new chapters have been added devoted to Multi-Agent Systems for Coordinated Control of FACTS-devices, Power System Stability Control using FACTS with Multiple Operating Points, Control of a Looping Device in a Distribution System, and Power Electronic Control for Wind Generation.

Flexible AC Transmission Systems (FACTS)

Flexible AC Transmission Systems (FACTS)
Author: Suman Bhowmick
Publisher: CRC Press
Total Pages: 223
Release: 2018-09-03
Genre: Technology & Engineering
ISBN: 1498756212

Flexible AC Transmission Systems (FACTS): Newton Power-Flow Modeling of Voltage-Sourced Converter-Based Controllers introduces different voltage-sourced converter (VSC)-based FACTS controllers and VSC-based high-voltage direct current (VSC-HVDC) systems and their working principles, explaining how FACTS controllers exchange real and reactive power with systems. Subsequently, the book: Describes the Newton–Raphson method and its application for solving the power-flow problem Presents the Newton power-flow modeling of the static synchronous series compensator (SSSC), unified power-flow controller (UPFC), interline power-flow controller (IPFC), generalized unified power-flow controller (GUPFC), and static synchronous compensator (STATCOM), accommodating the practical device constraint limits (because of the unique modeling strategy, the existing Newton power-flow codes can be reused) Develops a unified Newton power-flow model of AC systems incorporating multiterminal VSC-HVDC systems with pulse-width modulation (PWM) control schemes, directly yielding the VSC modulation indices from the power-flow solution Provides numerous case studies for validation of Newton power-flow models, elaborating on the occurrences and checking of unrealistic power-flow solutions in isolated cases Includes detailed derivations of all the difficult formulae as well as solved problems on typical VSC-based FACTS controllers Flexible AC Transmission Systems (FACTS): Newton Power-Flow Modeling of Voltage-Sourced Converter-Based Controllers assumes at least an undergraduate-level understanding of engineering mathematics, network analysis, electrical machines, electrical power systems, and power electronics. Thus, the book provides a valuable reference for practitioners as well as senior-undergraduate and graduate students in electrical engineering and electrical power systems.

Modeling and Simulation of HVDC Transmission

Modeling and Simulation of HVDC Transmission
Author: Minxiao Han
Publisher: Institution of Engineering and Technology
Total Pages: 367
Release: 2020-12-31
Genre: Technology & Engineering
ISBN: 1785613804

The development of large-scale renewable generation and load electrification call for highly efficient and flexible electric power integration, transmission and interconnection. High Voltage DC (HVDC) transmission technology has been recognized as the key technology for this scenario. HVDC transmissions, including both the line commutated converter (LCC) HVDC and voltage source converter (VSC) HVDC have played an important role in the modern electric power system. However, with the inclusion of power electronic devices, HVDC introduces the characteristics of nonlinearity and different timescales into the traditional electromechanical system and thus careful modeling and simulation of HVDC transmission are essential for power system design, commissioning, operation and maintenance.

Planning and Control of Expandable Multi-Terminal VSC-HVDC Transmission Systems

Planning and Control of Expandable Multi-Terminal VSC-HVDC Transmission Systems
Author: Roni Irnawan
Publisher: Springer Nature
Total Pages: 218
Release: 2019-09-03
Genre: Technology & Engineering
ISBN: 3030274888

This book discusses novel methods for planning and coordinating converters when an existing point-to-point (PtP) HVDC link is expanded into a multi-terminal HVDC (MTDC) system. It demonstrates that expanding an existing PtP HVDC link is the best way to build an MTDC system, and is especially a better option than the build-from-scratch approach in cases where several voltage-sourced converter (VSC) HVDC links are already in operation. The book reports in detail on the approaches used to estimate the new steady-state operation limits of the expanded system and examines the factors influencing them, revealing new operation limits in the process. Further, the book explains how to coordinate the converters to stay within the limits after there has been a disturbance in the system. In closing, it describes the current DC grid control concept, including how to implement it in an MTDC system, and introduces a new DC grid control layer, the primary control interface (IFC).

Design, Control, and Application of Modular Multilevel Converters for HVDC Transmission Systems

Design, Control, and Application of Modular Multilevel Converters for HVDC Transmission Systems
Author: Kamran Sharifabadi
Publisher: John Wiley & Sons
Total Pages: 522
Release: 2016-08-22
Genre: Science
ISBN: 1118851544

Design, Control and Application of Modular Multilevel Converters for HVDC Transmission Systems is a comprehensive guide to semiconductor technologies applicable for MMC design, component sizing control, modulation, and application of the MMC technology for HVDC transmission. Separated into three distinct parts, the first offers an overview of MMC technology, including information on converter component sizing, Control and Communication, Protection and Fault Management, and Generic Modelling and Simulation. The second covers the applications of MMC in offshore WPP, including planning, technical and economic requirements and optimization options, fault management, dynamic and transient stability. Finally, the third chapter explores the applications of MMC in HVDC transmission and Multi Terminal configurations, including Supergrids. Key features: Unique coverage of the offshore application and optimization of MMC-HVDC schemes for the export of offshore wind energy to the mainland. Comprehensive explanation of MMC application in HVDC and MTDC transmission technology. Detailed description of MMC components, control and modulation, different modeling approaches, converter dynamics under steady-state and fault contingencies including application and housing of MMC in HVDC schemes for onshore and offshore. Analysis of DC fault detection and protection technologies, system studies required for the integration of HVDC terminals to offshore wind power plants, and commissioning procedures for onshore and offshore HVDC terminals. A set of self-explanatory simulation models for HVDC test cases is available to download from the companion website. This book provides essential reading for graduate students and researchers, as well as field engineers and professionals who require an in-depth understanding of MMC technology.