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The importance of power electronic converters for electricity grid
equipment is increasing due to the growing distribution-level
penetration of renewable energy sources. The performance of the
converters mostly depends on interactions between sources, loads,
and their state of operation. These devices must be operated with
safety and stability under normal conditions, fault conditions,
overloads, as well as different operation modes. Therefore,
enhanced control strategies of power electronic converters are
necessary to improve system stability. This book for researchers
and practitioners discusses enhanced control strategies, fault and
failure mode classification mechanisms, and reliability analysis
methods for PV modules, power electronic converters, and
grid-connected PV systems, and thermal image-based monitoring. The
technologies conveyed serve to improve the reliability and
stability of power systems. Life calculation of converters, and
case and reliability studies are included as well. The
international author team consists of researchers with a range of
backgrounds from academia and industry.
The main aims of power electronic converter systems (PECS) are to
control, convert, and condition electrical power flow from one form
to another through the use of solid state electronics. This book
outlines current research into the scientific modeling,
experimentation, and remedial measures for advancing the
reliability, availability, system robustness, and maintainability
of PECS at different levels of complexity. Drawing on the
experience of an international team of experts, this book explores
the reliability of PECS covering topics including an introduction
to reliability engineering in power electronic converter systems;
anomaly detection and remaining-life prediction for power
electronics; reliability of DC-link capacitors in power electronic
converters; reliability of power electronics packaging; modeling
for life-time prediction of power semiconductor modules;
minimization of DC-link capacitance in power electronic converter
systems; wind turbine systems; smart control strategies for
improved reliability of power electronics system; lifetime
modelling; power module lifetime test and state monitoring; tools
for performance and reliability analysis of power electronics
systems; fault-tolerant adjustable speed drive systems; mission
profile-oriented reliability design in wind turbine and
photovoltaic systems; reliability of power conversion systems in
photovoltaic applications; power supplies for computers; and
high-power converters. Reliability of Power Electronic Converter
Systems is essential reading for researchers, professionals and
students working with power electronics and their applications,
particularly those specialising in the development and application
of power electronic converters and systems.
To develop and construct an optimal career is one of the major
challenges for youths in many societies. This book provides an
intriguing account of the process how a group of college-track
students in Taiwan constructed their careers in this modern society
with the Confucian tradition. The process can be characterized as a
dynamic interaction between tsi-chi (self) and pieh-jen (others).
Personal interests and characteristics as well as social values and
norms embodied in others' expectations constitute two foundations
from which these youths draw to construct their career goals and
make important career choices. Three groups, other-oriented,
self-oriented and those between self and others, exist among these
youths based on their orientations toward self and others. The
experiences of the in-between group can be further differentiated
into four patterns: Balance between self and others; adaptation of
self to others; conflict between self and others and incorporation
of others into self. This study made significant contributions to
the field of career research and indigenous psychology by bridging
a gap in the current Western career research
Moving toward green energy technologies will introduce more
technical challenges to the modern interconnected energy systems
with power systems. To address these challenges, it is necessary to
understand the basics of power systems and the new technologies
integrated to the power systems. Among the emerging technologies,
power electronics play a significant role in various applications.
Depending on how to design, control and operate the power
electronics, they can strengthen or deteriorate the performance of
the whole system. This monograph provides an overview of the modern
electric energy systems with more power electronics integration in
generation, operation and control perspectives. The basics of power
systems are introduced and the fundamentals of transition from
traditional centralized power systems to modern power systems are
discussed. Thereafter, dominant clean energy generations are
introduced, and the basics of power converter topologies and
control structure are explained. Lastly, the concept of reliability
assessment in power electronics-dominated power systems is covered.
Also, major technical challenges that are deteriorating the overall
system performance and reliability are addressed and feasible
solutions are explained.
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