Название: Coordination and Optimization of Grid-Tied Power Converters: From Pulse Width Modulation Perspective
Автор: Feng Gao, Tao Xu
Издательство: Springer
Год: 2022
Страниц: 222
Язык: английский
Формат: pdf (true)
Размер: 10.2 MB

This book investigates the control and optimization of grid-tied power converters, with a special attention attached to pulse width modulation, which determines the size and cost of power converters as well as switching harmonics. Through the methods introduced in this book, multiple grid-tied power converters safely operate and coordinate in a highly efficient and reliable fashion, thereby boosting the operation of modern power grids. To facilitate understanding, the key methods are presented together with their associated algorithms and detailed software codes. In parallel to theoretical treatments, this book further applies the methods into practical scenarios and industrial products, thus enhancing their credibility. The book serves as a guidance for electrical engineers and researchers in the field of power electronics and power systems.

Название: Switching Power Supply Design: A Concise Practical Handbook
Автор: Lazar Rozenblat
Издательство: Independently published
Год: 2021
Страниц: 146
Язык: английский
Формат: pdf, epub
Размер: 11.7 MB

This handbook provides in a single place the essential information needed in the practical switching mode power supply (SMPS) design in an easy-to-use format. It may be as useful to the experienced designer as it will to the recent engineering grad, a student, and a hobbyist. Note that this is not a textbook for learning power electronics. This handbook is for those who know the electronics basics and need a quick reference and practical engineering equations. It should speed up your design by saving time that would otherwise be spent on deriving equations and searching the literature, not to mention on re-spinning the board because of incorrectly selected magnetics, underrated components, or improperly sized PCB traces.

Название: Nonactive Current Components Compensation of Low-voltage Power Supply Systems
Автор: M.V. Zagirnyak, M.S. Maliakova, A.P. Kalinov
Издательство: Nova Science Publishers
Год: 2020
Страниц: 280
Язык: английский
Формат: pdf (true)
Размер: 10.9 MB

The monograph has solved an actual scientific problem, improving the efficiency of electricity networks by developing methods of compensation current non-active components under harmonic distortions and unbalance of mains supply voltage. The research of the compensation system working processes in time- and frequency-domain allows to reach the positive effect for the developed method. The necessity of the analytical methods for analysis of nonlinear elements of electrical systems in the frequency-domain development have been grounded. The expediency and efficiency of the usage of small parameter method, which is realized in frequency-domain using instantaneous admittance components, have been grounded. It is shown that application of a small parameter method with its realization in frequency domain enables significant simplification of the process of the analysis of electric circuits with semiconductor converters in an analytical form and facilitation of calculation automation. Based on this, the algorithm for calculation of the passive filter parameters have been proposed.

Название: All Weather Robot Vision
Автор: Jiandong Tian
Издательство: Huazhong University of Science and Technology Press, Springer
Год: 2022
Страниц: 315
Язык: английский
Формат: pdf (true)
Размер: 14.7 MB

Research has shown that more than 70% of information that humans receive is perceived by vision. Similarly, vision systems are also very important for robots and have basically become the standard configuration of robots. It is fundamental for robots to understand the environment and execute tasks, and it is also an important entrance to realize robot intelligence. With the rapid development of Deep Learning (DL) technology in recent years, task-oriented researches in vision, such as visual servoing, target recognition, tracking, and image understanding, have made remarkable progress. However, it should be noted that these visual algorithms are all developed for images with good quality and stable lighting conditions. In fact, robots often need to work in complex, dynamic, or unstructured environment. At this time, vision algorithms often lack adaptive ability and robustness to the environment.

Название: Основы радиотехнических систем
Автор: Зырянов Ю. Т., Белоусов О. А., Федюнин П. А.
Издательство: Лань
Год: 2021 - 2-е изд., перераб. и доп.
Cтраниц: 192
Формат: pdf
Размер: 17 мб
Язык: русский

В учебном пособии рассмотрены принципы построения и перспективы развития радиотехнических систем различного назначения. Изложены особенности обработки радиосигналов на фоне помех, методы определения координат и параметров движущихся объектов.

Название: Active Electronically Scanned Arrays: Fundamentals and Applications
Автор: Arik D. Brown
Издательство: Wiley-IEEE Press
Год: 2022
Страниц: 275
Язык: английский
Формат: pdf (true)
Размер: 12.8 MB

В книге "Активные фазированные антенные решётки. Основы и применение" Арик Браун преподносит основополагающее изложение активных фазированных антенных решёток (АФАР), идеально подходящее для студентов и специалистов. Уважаемый автор предоставляет обзор первичных подсистем АФАР и подробные объяснения ключевых концепций конструкции и основ для подсистем, включая элементы антенны, модули передачи/приема и излучающие элементы.

Название: Wireless RF Energy Transfer in the Massive IoT Era : Towards Sustainable Zero-Energy Networks
Автор: Onel Alcaraz Lopez, Hirley Alves
Издательство: Wiley-IEEE Press
Год: 2022
Страниц: 251
Язык: английский
Формат: pdf (true)
Размер: 10.1 MB

A deep dive into wireless energy transfer technologies for IoT networks. In Wireless Energy Transfer: Towards Sustainable Zero-Energy IoT Networks, distinguished researchers Onel L. A. López and Hirley Alves deliver a robust discussion of massive wireless energy transfer and zero-energy, low-cost, Internet of Things networks. Moving beyond the basic theoretical background of the subject, the authors offer a deep analysis of the scenarios and requirements of wireless energy transfer. The book details novel powering schemes recently proposed to face the challenging requirements of the future Internet of Things, as well as a comprehensive review of sustainable IoT wireless networks.

Название: Novel Millimetre Wave Antennas for MIMO and 5G Applications
Автор: Shiban Kishen Koul, Zamir Wani
Издательство: Springer
Год: 2021
Страниц: 181
Язык: английский
Формат: pdf (true)
Размер: 10.1 MB

This book presents the state-of-the-art millimetre wave antennas for next-generation 5G communications. The antenna is an integral part of a communication system, and it is regarded as an intelligent sub-system which can support beamforming, multiple-input, multiple-output (MIMO), massive MIMO and other multiplexing techniques for advanced communication systems. Since propagation losses associated with the millimetre waves (mm-waves) and the signal blockage due to the objects present between transmitter and receiver restrict the performance of the millimetre wave wireless system, novel antenna topologies are required to address such issues. In the book, various aspects of the antenna design are highlighted related to millimetre wave 5G communication including 28-GHz channel characteristics, mm-wave antenna requirements, antenna design strategies for 28 GHz, MIMO/multibeam antennas and mm-wave lens antennas.

Название: Теория и расчет трансформаторов источников вторичного электропитания
Автор: Хныков А.В.
Издательство: СОЛОН-Пресс
Год: 2016
Формат: pdf
Размер: 14 мб
Язык: русский

Изложены теоретические основы расчета многообмоточных трансформаторов. Получены расчетные формулы для трансформаторов однотактных прямо- и обратноходовых преобразователей, двухтактных преобразователей, трансформаторов, работающих от синусоидальной сети (однофазный и трехфазный варианты), трансформатора тока. Приводится методика расчета потерь в сердечнике. Приведены примеры (методики) расчета трансформаторов указанных типов.

Название: Underwater Communications and Networks
Автор: Yi Lou, Niaz Ahmed
Издательство: Springer
Год: 2022
Страниц: 379
Язык: английский
Формат: pdf (true)
Размер: 10.2 MB

This textbook covers all related communication technologies of underwater wireless communication, such as acoustic communication, optical communication, and magneto-inductive communication. After describing each technology, the authors relay their pros and cons, as it is essential to learn the underlying mechanism, advancements, and limitations of these techniques. Therefore, this book provides basics fundamentals of the three technologies, their advantages and disadvantages, and their applications. The authors also introduce research trends, pointing readers in the direction of research in the field of underwater wireless communication. The book is an essential textbook for undergraduate and graduate students in the field of underwater communications. The book is also useful as a reference to undergraduate engineering students, science students, and practicing engineers.