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Two-stage single-phase converters, including two-stage single-phase
dc-ac inverters and two-stage single-phase PFC converters, are
interfacing power converters between dc and ac voltage/current
sources, which have been widely applied for dc-ac and ac-dc power
conversion. For the two-stage single-phase converter, the ac-side
power pulsates at twice the ac voltage frequency, resulting in
second harmonic current (SHC) which might flow into the dc-dc
converter, the dc voltage source, and dc load. This book clarifies
the generation, propagation, and side-effects of this SHC and
proposes the SHC reduction control schemes for the dc-dc converter,
with different topologies and/or different operating modes, in the
single-phase converter. On this basis, the second harmonic current
compensator (SHCC) is proposed to compensate the SHC, significantly
reducing the dc bus capacitance. In doing so, the electrolytic
capacitors, with short lifetimes, are removed from the two-stage
single-phase converter, leading to extended system lifetime and
enhanced system stability. For having flawless SHC compensation
performance, the port-current control schemes are proposed for the
SHCC. Additionally, the stability analysis is carried out for the
two-stage single-phase converter with the addition of SHCC. This
book is a monograph combining theoretical analysis and engineering
design, which could not only be a reference book for master
students, Ph.D. students, and teachers majoring in power
electronics but also be a handbook for the electrical engineers
working on the research and development of LED drivers, EV on-board
chargers, railway auxiliary power supplies, aviation power
supplies, renewable energy generation systems, etc.
Internet of things (IoT) is a new type of network that combines
communication technology, expanded applications, and physical
devices. Among them, agriculture is one of the most important areas
in the application of the IoT technology, which has its unique
requirements and integration features. Compared to the information
technology in traditional agriculture, the agricultural IoT mainly
refers to industrialized production and sustainable development
under relatively controllable conditions. Agricultural IoT applies
sensors, RFID, visual capture terminals and other types of sensing
devices to detect and collect site information, and with broad
applications in field planting, facility horticulture, livestock
and poultry breeding, aquaculture and agricultural product
logistics. It utilizes multiple information transmission channels
such as wireless sensor networks, telecommunications networks and
the internet to achieve reliable transmission of agricultural
information at multiple scales and intelligently processes the
acquired, massive information. The goals are to achieve (i) optimal
control of agricultural production process, (ii) intelligent
electronic trading of agricultural products circulation, and (iii)
management of systematic logistics, quality and safety
traceability. This book focuses on three levels of agricultural IoT
network: information perception technology, information
transmission technology and application technology.
Internet of things (IoT) is a new type of network that combines
communication technology, expanded applications, and physical
devices. Among them, agriculture is one of the most important areas
in the application of the IoT technology, which has its unique
requirements and integration features. Compared to the information
technology in traditional agriculture, the agricultural IoT mainly
refers to industrialized production and sustainable development
under relatively controllable conditions. Agricultural IoT applies
sensors, RFID, visual capture terminals and other types of sensing
devices to detect and collect site information, and with broad
applications in field planting, facility horticulture, livestock
and poultry breeding, aquaculture and agricultural product
logistics. It utilizes multiple information transmission channels
such as wireless sensor networks, telecommunications networks and
the internet to achieve reliable transmission of agricultural
information at multiple scales and intelligently processes the
acquired, massive information. The goals are to achieve (i) optimal
control of agricultural production process, (ii) intelligent
electronic trading of agricultural products circulation, and (iii)
management of systematic logistics, quality and safety
traceability. This book focuses on three levels of agricultural IoT
network: information perception technology, information
transmission technology and application technology.
Two-stage single-phase converters, including two-stage single-phase
dc-ac inverters and two-stage single-phase PFC converters, are
interfacing power converters between dc and ac voltage/current
sources, which have been widely applied for dc-ac and ac-dc power
conversion. For the two-stage single-phase converter, the ac-side
power pulsates at twice the ac voltage frequency, resulting in
second harmonic current (SHC) which might flow into the dc-dc
converter, the dc voltage source, and dc load. This book clarifies
the generation, propagation, and side-effects of this SHC and
proposes the SHC reduction control schemes for the dc-dc converter,
with different topologies and/or different operating modes, in the
single-phase converter. On this basis, the second harmonic current
compensator (SHCC) is proposed to compensate the SHC, significantly
reducing the dc bus capacitance. In doing so, the electrolytic
capacitors, with short lifetimes, are removed from the two-stage
single-phase converter, leading to extended system lifetime and
enhanced system stability. For having flawless SHC compensation
performance, the port-current control schemes are proposed for the
SHCC. Additionally, the stability analysis is carried out for the
two-stage single-phase converter with the addition of SHCC. This
book is a monograph combining theoretical analysis and engineering
design, which could not only be a reference book for master
students, Ph.D. students, and teachers majoring in power
electronics but also be a handbook for the electrical engineers
working on the research and development of LED drivers, EV on-board
chargers, railway auxiliary power supplies, aviation power
supplies, renewable energy generation systems, etc.
This book provides robust analysis and synthesis tools for
Markovian jump systems in the finite-time domain with specified
performances. It explores how these tools can make the systems more
applicable to fields such as economic systems, ecological systems
and solar thermal central receivers, by limiting system
trajectories in the desired bound in a given time interval. Robust
Control for Discrete-Time Markovian Jump Systems in the Finite-Time
Domain focuses on multiple aspects of finite-time stability and
control, including: finite-time H-infinity control; finite-time
sliding mode control; finite-time multi-frequency control;
finite-time model predictive control; and high-order moment
finite-time control for multi-mode systems and also provides many
methods and algorithms to solve problems related to Markovian jump
systems with simulation examples that illustrate the design
procedure and confirm the results of the methods proposed. The
thorough discussion of these topics makes the book a useful guide
for researchers, industrial engineers and graduate students alike,
enabling them systematically to establish the modeling, analysis
and synthesis for Markovian jump systems in the finite-time domain.
In the context of coupled-coordination control mechanisms, this
book focuses on the delay robustness of consensus problems with
asynchronously coupled and synchronously coupled consensus
algorithms respectively. Moreover, constructive consensus
algorithms that tolerate larger communication delays are proposed
according to idea of compensation. By providing rigorous
theoretical proofs and numerous numerical simulations, it enhances
readers' understanding of the consensus coordination control
mechanism of multi-agent systems with communication delays.
"Study on Heterotrophic-Autotrophic Denitrification Permeable
Reactive Barriers (HAD PRBs) for In Situ Groundwater Remediation"
is an unmatched reference work on PRBs for groundwater in situ
remediation. It proposes a novel HAD PRB approach for
nitrate-contaminated groundwater remediation, and provides a
systematic and clear explanation of design concepts and
denitrification mechanisms. The book consists of four chapters,
each of which covers key aspects of HAD PRBs. It provides rich,
easy-to-follow illustrations, tables and references. Unique as a
comprehensive reference work on the subject, it will serve as a
valuable resource for all engineers and scientists active in
environmental science and engineering, groundwater science,
engineering and molecular biology. Prof. Fei Liu works at China
University of Geosciences (Beijing), China. Dr. Guoxin Huang works
at Beijing Academy of Food Sciences, China. Both Prof. Howard
Fallowfield and Prof. Huade Guan work at Flinders University,
Australia. Assistant Engineer Lingling Zhu works at Geological
Publishing House, China. Assistant Engineer Hongyan Hu works at
Hydrogeology and Engineering Geology Prospecting Institute of
Heilongjiang Province, China.
This book describes high frequency power MOSFET gate driver
technologies, including gate drivers for GaN HEMTs, which have
great potential in the next generation of switching power
converters. Gate drivers serve as a critical role between control
and power devices. In recent years, there has been a trend to
increase the switching frequency beyond multi-MHz in switching
power converters to reduce the passive components and significantly
improve power density. However, this results in high switching loss
and gate driver loss in power MOSFETs. The novel approach in this
book is the proposed Current Source Gate Driver (CSD) including
different topologies, control and applications. The CSD can reduce
the switching transition time and switching loss significantly, and
recover high frequency gate driver loss compared to conventional
voltage gate drivers. The basic idea can also be extended to other
power devices to improve high frequency switching performance such
as SiC MOSFET and IGBT. Topics covered in the book include the
state-of-the-art of power MOSFET drive techniques, the switching
loss model, current source gate drivers (CSDs), resonant gate
drivers, adaptive gate drivers and GaN HEMT gate drivers. The book
is essential reading for design engineers, researchers and advanced
students working in switching power supplies and in power
electronics generally.
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