This book consists of three major sections. The first section covers the fundamental theories
of new energy power systems. The content includes five synchronization control methods between
Voltage Source Converters (VSC) and AC grids classification of VSC and its control modes
principles and applications of versatile static synchronous machines based on Modular
Multilevel Converters (MMC) definition and calculation methods of power system strength
definition and analysis methods of power system resonance stability and the dilemma of AC
power system resonance stability analysis based on impedance models. The second section focuses
on the principles and applications of MMC-HVDC transmission systems. The content includes the
working principles and steady-state characteristics of MMC selection of main circuit
parameters and loss calculation for MMC control strategies for MMC-HVDC transmission systems
submodule capacitor voltage control strategies under four typical MMC operation modes analysis
of AC DC side fault characteristics and DC side fault self-clearing capability construction
MMC-HVDC transmission systems suitable for overhead lines MMC-HVDC transmission systems for
large-scale renewable energy bases MMC-HVDC transmission applied to offshore wind farm grid
integration voltage control principles and transient fault characteristics of MMC-HVDC grids
basic principles and implementation methods of high-voltage DC circuit breakers full DC
collection and transmission systems for renewable energy bases insulation coordination design
of MMC-HVDC converter stations and fast electromagnetic transient simulation methods for MMC.
The third section covers the principles and applications of flexible AC transmission systems
based on cascaded submodule converters. The content includes principles and control strategies
of Modular Multilevel Matrix Converters (M3C) principles of low-frequency AC transmission
systems for offshore wind farms based on M3C principles of Unified Power Flow Controllers
(UPFC) based on MMC principles of Static Synchronous Compensators (STATCOM) with cascaded
submodules etc. This book is suitable for advanced engineering and technical personnel engaged
in research planning design operation of new energy power systems and development of
flexible transmission equipment as well as teachers and graduate students in electrical
engineering disciplines at universities.
