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Distributed Transformers for Broadband Monolithic Millimeter-Wave Integrated Power Amplifiers

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Book Series: Karlsruher Forschungsberichte aus dem Institut für Hochfrequenztechnik und Elektronik ISSN: 18684696 ISBN: 9783731504092 Year: Volume: 80 Pages: XVIII, 211 p. DOI: 10.5445/KSP/1000048002 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: Technology (General)
Added to DOAB on : 2019-07-30 20:02:00
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This work presents methods and techniques to optimize and implement distributed magnetic transformers for their application in matching networks of Monolithic Millimeter-wave Integrated Circuits (MMICs). It describes strategies for the efficiency and bandwidth optimization of the transformers and demonstrates their potential based on an optimized transformer geometry as well as two MMIC power amplifiers.

Wave Energy Potential, Behavior and Extraction

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ISBN: 9783039283965 9783039283972 Year: Pages: 238 DOI: 10.3390/books978-3-03928-397-2 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Physics (General)
Added to DOAB on : 2020-04-07 23:07:09
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Wave energy has a higher potential than most of the available ocean energy resources; however, it fluctuates dramatically depending on geographical and temporal baselines. The complexity of wave energy is only exacerbated by that fact that the cycle of creation, transport, and disappearance of wave energy is influenced by a wide variety of factors. This Special Issue of Energies explores the latest developments in wave energy potential, behavior, and extraction. This Special Issue introduces 1) thorough reviews on the status of wave energy development, 2) novel technologies to extract wave energy including wave energy converter design, and 3) latest methodologies applied in analyzing wave energy potentials.

Permanent Magnet Synchronous Machines

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ISBN: 9783039213504 9783039213511 Year: Pages: 282 DOI: 10.3390/books978-3-03921-351-1 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering
Added to DOAB on : 2019-12-09 11:49:15
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Interest in permanent magnet synchronous machines (PMSMs) is continuously increasing worldwide, especially with the increased use of renewable energy and the electrification of transports. This book contains the successful submissions of fifteen papers to a Special Issue of Energies on the subject area of “Permanent Magnet Synchronous Machines”. The focus is on permanent magnet synchronous machines and the electrical systems they are connected to. The presented work represents a wide range of areas. Studies of control systems, both for permanent magnet synchronous machines and for brushless DC motors, are presented and experimentally verified. Design studies of generators for wind power, wave power and hydro power are presented. Finite element method simulations and analytical design methods are used. The presented studies represent several of the different research fields on permanent magnet machines and electric drives.

Keywords

PMSM (permanent magnet synchronous motor) --- DB-DTFC (deadbeat-direct torque and flux control) --- torque control --- stability --- permanent-magnet machine --- brushless machine --- Vernier machine --- flux switching machine --- multiphase machine --- outer rotor --- electric vehicle --- interior permanent magnet synchronous machines --- magnetic reluctance network --- brushless dc motor --- phase-advanced method --- winding inductance --- sub-fractional slot-concentrated winding --- field weakening --- periodic timer interrupt --- Brushless DC motors --- current ripples --- current spikes --- modeling --- back electromotive force --- R-C filter --- cogging torque --- permanent magnet synchronous generator --- small wind turbines --- finite element method --- renewable energy --- energy conversion --- finite element analysis --- pulse width modulation --- permanent magnet synchronous generator --- wind generator --- MPC --- PMSM --- vector control --- speed tracking --- brushless DC (BLDC) motor --- sensorless motor --- commutation error compensation --- free-wheeling period --- permanent magnet synchronous motor (PMSM) --- sliding mode observer (SMO) --- parameter perturbation --- predictive current control (PCC) --- digital simulation --- motor drives --- interior permanent-magnet machines --- finite-element analysis --- modeling --- automotive applications --- electric vehicle (EV) --- hybrid electric vehicle (HEV) --- mathematical model --- saturation --- coils --- design tools --- energy efficiency --- linear generator --- power control --- stator --- wave power --- permanent magnet synchronous generator --- electrical machine design --- permanent magnet material --- bulk electric system --- condition monitoring --- electrical signature analysis --- fault diagnosis --- predictive maintenance --- synchronous generator --- permanent magnet synchronous machine (PMSM) --- flying start --- sensorless control --- permanent magnet synchronous generator --- permanent magnet synchronous motor --- electric propulsion systems --- renewable energy --- energy conversion

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