Dissertations / Theses on the topic 'Single and dual component systems'

Thesis (M.S.)--Georgia State University, 2006.
Title from title screen. Alexander Zelikovsky, committee chair; Anu Bourgeois, Saeid Belkasim, committee members. Electronic text (59 p. : ill. (some col.)) : digital, PDF file. Description based on contents viewed June 28, 2007. Includes bibliographical references (p. 58-59).

L’objectif de la thèse est d’explorer de nouveaux systèmes chimiques à réactivité élevée à température ambiante et les soumettre à un cahier des charges de polymères thermodurcissables. Ce projet a été construit autour de deux chimies capables de s’effectuer dans des conditions douces : l’addition d’aza-Michael et la cycloaddition de Diels-Alder. L’addition d’aza-Michael est une réaction spontanée à température ambiante, s’effectuant entre une fonction amine et un composé  insaturé comme les acrylates. Cette réaction peut être réalisée sans solvants ni catalyseurs. Elle est donc couramment utilisée depuis de nombreuses années dans le domaine des polymères. Une autre voie faisant également l’objet de nombreuses études dans les thermodurcissables est la réaction de cycloaddition de Diels-Alder, s’effectuant entre un diène et un diénophile. L’avantage de cette réaction est son caractère potentiellement réversible, effectif à partir de températures supérieures à 100°C. Les travaux de la thèse ont été divisés en deux chapitres importants dans lesquels l’addition d’aza-Michael a été principalement utilisée. Un premier chapitre a été consacré au développement de nouveaux systèmes mono-composants, et l’autre à l’obtention de systèmes bi-composants. Pour la première partie, différents systèmes mono-composants ont été préparés par addition de Michael. Concernant le deuxième chapitre, une partie a été dédiée à l’utilisation de la cycloaddition de Diels-Alder pour l’obtention de matériaux réticulés. L’autre partie s’est consacrée à l’emploi de l’addition aza-Michael via plusieurs systèmes de réticulation
The aim of the thesis is to explore new chemical systems with high reactivity at room temperature and to submit them to coatings specifications. Two chemicals reactions performing under mild conditions was used : the aza michael additionn and the Diels-Alder cycloaddition. The aza-Michael addition is a spontaneous reaction at room temperature between an amine function and an  unsaturated compound such as acrylates. This reaction can be carried out without solvents or catalysts. The other one that has also been the subject of numerous studies in thermosets field is the Diels-Alder cycloaddition reaction, carried out between a diene and a dienophile. The advantage of this reaction is its potentially thermo-reversible nature.The work of the thesis was divided into two important parts in which the aza-Michael addition was mainly used. The first chapter was devoted to the development of one-component systems, and the other one to the production of two-component systems. For the first chapter, several one-component systems have been prepared by Michael addition. Concerning the second chapter, a part was dedicated to the use of the Diels-Alder cycloaddition for obtaining thermosets. The other part is devoted to the use of aza-Michael addition via several crosslinking systems

Structured Light Illumination is a widely used 3D shape measurement technique in non-contact surface scanning. Multi-pattern based Structured Light Illumination methods reconstruct 3-D surface with high accuracy, but are sensitive to object motion during the pattern projection and the speed of scanning process is relatively long. To reduce this sensitivity, single pattern techniques are developed to achieve a high speed scanning process, such as Composite Pattern (CP) and Modified Composite Pattern (MCP) technique. However, most of single patter techniques have a significant banding artifact and sacrifice the accuracy. We focus on developing SLI techniques can achieve both high speed, high accuracy and have the tolerance to the relative motion. We first present a novel Two-Pattern Full Lateral Resolution (2PFLR) SLI method utilizing an MCP pattern for non-ambiguous phase followed by a single sinusoidal pattern for high accuracy. The surface phase modulates the single sinusoidal pattern which is demodulated using a Quadrature demodulation technique and then unwrapped by the MCP phase result. A single sinusoidal pattern reconstruction inherently has banding error. To effective de-band the surface, we propose Projector Space De-banding algorithm (PSDb). We use projector space because the band error is aligned with the projector coordinates allowing more accurate estimation of the banding error. 2PFLR system only allows the relative motion within the FOV of the scanner, to extend the application of the SLI, we present the research on Relative Motion 3-D scanner which utilize a single pattern technique. The pattern in RM3D system is designed based on MCP but has white space area to capture the surface texture, and a constellation correlation filter method is used to estimate the scanner's trajectory and then align the 3-D surface reconstructed by each frame to a point cloud of the whole object surface.

The broadcast nature of wireless medium has made information security as one of the most important and critical issues in wireless systems. Physical layer security, which is based on information-theoretic secrecy concepts, can be used to secure the wireless channels by exploiting the noisiness and imperfections of the channels. Massive multiple-input multiple-output (MIMO) systems, which are equipped with very large antenna arrays at the base stations, have a great potential to boost the physical layer security by generating the artificial noise (AN) with the exploitation of excess degrees-of-freedom available at the base stations. In this thesis, we investigate physical layer security provisions in the presence of passive/active eavesdroppers for single-hop massive MIMO, dual-hop relay-assisted massive MIMO and underlay spectrum-sharing massive MIMO systems. The performance of the proposed security provisions is investigated by deriving the achievable rates at the user nodes, the information rate leaked into the eavesdroppers, and the achievable secrecy rates. Moreover, the effects of active pilot contamination attacks, imperfect channel state information (CSI) acquisition at the base-stations, and the availability of statistical CSI at the user nodes are quantified. The secrecy rate/performance gap between two AN precoders, namely the random AN precoder and the null-space based AN precoder, is investigated. The performance of hybrid analog/digital precoding is compared with the full-dimensional digital precoding. Furthermore, the physical layer security breaches in underlay spectrum-sharing massive MIMO systems are investigated, and thereby, security provisions are designed/analyzed against active pilot contamination attacks during the channel estimation phase. A power-ratio based active pilot attack detection scheme is investigated, and thereby, the probability of detection is derived. Thereby, the vulnerability of uplink channel estimation based on the pilots transmitted by the user nodes in time division duplexing based massive MIMO systems is revealed, and the fundamental trade-offs among physical layer security provisions, implementation complexity and performance gains are discussed.

In this work, we consider the channel assignment problem in single radio multi-channel mobile ad-hoc networks. Specifically, we investigate the granularity of channel assignment decisions that gives the best trade-off in terms of performance and complexity. We present a new granularity for channel assignment that we refer to as component level channel assignment. The strategy is relatively simple, and is characterized by several impressive practical advantages. We also show that the theoretical performance of the component based channel assignment strategy does not lag significantly behind the optimal possible performance, and perhaps more importantly we show that when coupled with its several practical advantages, it significantly outperforms other strategies under most network conditions.

Nowadays, the requirement to design highly valuable compounds is undoubtedly one of the major challenges in the field of organic and organometallic chemistry. The use of the versatile and efficient N-heterocyclic carbenes (NHCs) combined with transition metals represents a key feature in modern organometallic chemistry and homogeneous catalysis. In the course of this thesis, the straightforward design and synthesis of a library of Pd(0) bearing NHC ligands was achieved. Their catalytic performances (Chapter 1) and their phosphorescence properties in solution (Chapter 2) were disclosed. Currently, cross-couplings are some of the most important types of reaction in palladium catalysis. The formation of highly hindered biaryls substrates is one of the main requirements in cross-coupling chemistry. The design and synthesis of a palladium dimer bearing a bulky NHC ligand can fulfil this proposal (Chapter 4). The development of new classes of ligands is a topic of interest. For this reason, normal, abnormal, remote and mesoionic N-heterocyclic carbenes copper complexes were investigated and their reactivity compared in the [3+2] cycloaddition of azides and alkynes (Chapter 7). Air and moisture stable Cu(I)-NHC species have also been compared to their silver analogues for the alkynylation of ketones (Chapter 9). The different reactivity of the two latter organometallic species (Cu and Ag) with ethyldiazoacetate reagent via the formation of carbenes or C-H activated product is presented in Chapter 8. Recently, the development of a bimetallic catalytic system is strongly considered and has high impact. For this reason, two dual catalytic transformations (Pd-NHC and Cu-NHC) were studied for the C-H arylation (Chapter 5) and the synthesis of substituted alkenes products via a relay or cooperative mechanisms (Chapter 6). The isolation of intermediates and mechanistic studies were examined in each of these studies.

Approved for public release; distribution is unlimited
The National Aeronautics and Space Administration’s current proposed timeline for an interplanetary expedition is circa 2030. A manned Mars mission involves many complex requirements for communication with significant challenges including implementation, signal limitations, orbit requirements, and Earth-Sun-Mars occlusion. This analysis is focused on the potential advantages and disadvantages of potential orbits for maintaining communications with a manned mars mission. Areas analyzed will include signal limitations and possible improvements for Mars communication, through recommended frequency, the resulting signal to noise ratio, available channel capacity, and possible data rates of potential orbits. Ultimately, the purpose of this study is to determine (1) will one to two satellites be capable of maintaining continuous communication between a Mars orbit and a Mars ground mission, (2) will one to two satellites be capable of maintaining communication between Mars and Earth, likely through the Deep Space Network (DSN), (3) which frequency or frequencies will best suit Earth-Mars, and Mars relay communication, (4) how many satellites are necessary for continuous communication, including during Mars transit through the solar occlusion zone, and (5) what orbits are necessary to provide continuous communications throughout all the above mission regimes?

Les tumeurs sont entourées d'un microenvironnement complexe comprenant des cellules tumorales, des fibroblastes et une diversité de cellules immunitaires. Avec le développement actuel des immunothérapies, la compréhension de la composition du microenvironnement tumoral est d'une importance critique pour effectuer un pronostic sur la progression tumorale et sa réponse au traitement. Cependant, nous manquons d'approches quantitatives fiables et validées pour caractériser le microenvironnement tumoral, facilitant ainsi le choix de la meilleure thérapie. Une partie de ce défi consiste à quantifier la composition cellulaire d'un échantillon tumoral (appelé problème de déconvolution dans ce contexte), en utilisant son profil omique de masse (le profil quantitatif global de certains types de molécules, tels que l'ARNm ou les marqueurs épigénétiques). La plupart des méthodes existantes utilisent des signatures prédéfinies de types cellulaires et ensuite extrapolent cette information à des nouveaux contextes. Cela peut introduire un biais dans la quantification de microenvironnement tumoral dans les situations où le contexte étudié est significativement différent de la référence. Sous certaines conditions, il est possible de séparer des mélanges de signaux complexes, en utilisant des méthodes de séparation de sources et de réduction des dimensions, sans définitions de sources préexistantes. Si une telle approche (déconvolution non supervisée) peut être appliquée à des profils omiques de masse de tumeurs, cela permettrait d'éviter les biais contextuels mentionnés précédemment et fournirait un aperçu des signatures cellulaires spécifiques au contexte. Dans ce travail, j'ai développé une nouvelle méthode appelée DeconICA (Déconvolution de données omiques de masse par l'analyse en composantes immunitaires), basée sur la méthodologie de séparation aveugle de source. DeconICA a pour but l'interprétation et la quantification des signaux biologiques, façonnant les profils omiques d'échantillons tumoraux ou de tissus normaux, en mettant l'accent sur les signaux liés au système immunitaire et la découverte de nouvelles signatures. Afin de rendre mon travail plus accessible, j'ai implémenté la méthode DeconICA en tant que librairie R. En appliquant ce logiciel aux jeux de données de référence, j'ai démontré qu'il est possible de quantifier les cellules immunitaires avec une précision comparable aux méthodes de pointe publiées, sans définir a priori des gènes spécifiques au type cellulaire. DeconICA peut fonctionner avec des techniques de factorisation matricielle telles que l'analyse indépendante des composants (ICA) ou la factorisation matricielle non négative (NMF). Enfin, j'ai appliqué DeconICA à un grand volume de données : plus de 100 jeux de données, contenant au total plus de 28 000 échantillons de 40 types de tumeurs, générés par différentes technologies et traités indépendamment. Cette analyse a démontré que les signaux immunitaires basés sur l'ICA sont reproductibles entre les différents jeux de données. D'autre part, nous avons montré que les trois principaux types de cellules immunitaires, à savoir les lymphocytes T, les lymphocytes B et les cellules myéloïdes, peuvent y être identifiés et quantifiés. Enfin, les métagènes dérivés de l'ICA, c'est-à-dire les valeurs de projection associées à une source, ont été utilisés comme des signatures spécifiques permettant d'étudier les caractéristiques des cellules immunitaires dans différents types de tumeurs. L'analyse a révélé une grande diversité de phénotypes cellulaires identifiés ainsi que la plasticité des cellules immunitaires, qu'elle soit dépendante ou indépendante du type de tumeur. Ces résultats pourraient être utilisés pour identifier des cibles médicamenteuses ou des biomarqueurs pour l'immunothérapie du cancer
Tumors are engulfed in a complex microenvironment (TME) including tumor cells, fibroblasts, and a diversity of immune cells. Currently, a new generation of cancer therapies based on modulation of the immune system response is in active clinical development with first promising results. Therefore, understanding the composition of TME in each tumor case is critically important to make a prognosis on the tumor progression and its response to treatment. However, we lack reliable and validated quantitative approaches to characterize the TME in order to facilitate the choice of the best existing therapy. One part of this challenge is to be able to quantify the cellular composition of a tumor sample (called deconvolution problem in this context), using its bulk omics profile (global quantitative profiling of certain types of molecules, such as mRNA or epigenetic markers). In recent years, there was a remarkable explosion in the number of methods approaching this problem in several different ways. Most of them use pre-defined molecular signatures of specific cell types and extrapolate this information to previously unseen contexts. This can bias the TME quantification in those situations where the context under study is significantly different from the reference. In theory, under certain assumptions, it is possible to separate complex signal mixtures, using classical and advanced methods of source separation and dimension reduction, without pre-existing source definitions. If such an approach (unsupervised deconvolution) is feasible to apply for bulk omic profiles of tumor samples, then this would make it possible to avoid the above mentioned contextual biases and provide insights into the context-specific signatures of cell types. In this work, I developed a new method called DeconICA (Deconvolution of bulk omics datasets through Immune Component Analysis), based on the blind source separation methodology. DeconICA has an aim to decipher and quantify the biological signals shaping omics profiles of tumor samples or normal tissues. A particular focus of my study was on the immune system-related signals and discovering new signatures of immune cell types. In order to make my work more accessible, I implemented the DeconICA method as an R package named "DeconICA". By applying this software to the standard benchmark datasets, I demonstrated that DeconICA is able to quantify immune cells with accuracy comparable to published state-of-the-art methods but without a priori defining a cell type-specific signature genes. The implementation can work with existing deconvolution methods based on matrix factorization techniques such as Independent Component Analysis (ICA) or Non-Negative Matrix Factorization (NMF). Finally, I applied DeconICA to a big corpus of data containing more than 100 transcriptomic datasets composed of, in total, over 28000 samples of 40 tumor types generated by different technologies and processed independently. This analysis demonstrated that ICA-based immune signals are reproducible between datasets and three major immune cell types: T-cells, B-cells and Myeloid cells can be reliably identified and quantified. Additionally, I used the ICA-derived metagenes as context-specific signatures in order to study the characteristics of immune cells in different tumor types. The analysis revealed a large diversity and plasticity of immune cells dependent and independent on tumor type. Some conclusions of the study can be helpful in identification of new drug targets or biomarkers for immunotherapy of cancer

S tím, jak se neustále vyvíjejí nové technologie pro energeticky náročná průmyslová odvětví, stávající zařízení postupně zaostávají v efektivitě a produktivitě. Tvrdá konkurence na trhu a legislativa v oblasti životního prostředí nutí tato tradiční zařízení k ukončení provozu a k odstavení. Zlepšování procesu a projekty modernizace jsou zásadní v udržování provozních výkonů těchto zařízení. Současné přístupy pro zlepšování procesů jsou hlavně: integrace procesů, optimalizace procesů a intenzifikace procesů. Obecně se v těchto oblastech využívá matematické optimalizace, zkušeností řešitele a provozní heuristiky. Tyto přístupy slouží jako základ pro zlepšování procesů. Avšak, jejich výkon lze dále zlepšit pomocí moderní výpočtové inteligence. Účelem této práce je tudíž aplikace pokročilých technik umělé inteligence a strojového učení za účelem zlepšování procesů v energeticky náročných průmyslových procesech. V této práci je využit přístup, který řeší tento problém simulací průmyslových systémů a přispívá následujícím: (i)Aplikace techniky strojového učení, která zahrnuje jednorázové učení a neuro-evoluci pro modelování a optimalizaci jednotlivých jednotek na základě dat. (ii) Aplikace redukce dimenze (např. Analýza hlavních komponent, autoendkodér) pro vícekriteriální optimalizaci procesu s více jednotkami. (iii) Návrh nového nástroje pro analýzu problematických částí systému za účelem jejich odstranění (bottleneck tree analysis – BOTA). Bylo také navrženo rozšíření nástroje, které umožňuje řešit vícerozměrné problémy pomocí přístupu založeného na datech. (iv) Prokázání účinnosti simulací Monte-Carlo, neuronové sítě a rozhodovacích stromů pro rozhodování při integraci nové technologie procesu do stávajících procesů. (v) Porovnání techniky HTM (Hierarchical Temporal Memory) a duální optimalizace s několika prediktivními nástroji pro podporu managementu provozu v reálném čase. (vi) Implementace umělé neuronové sítě v rámci rozhraní pro konvenční procesní graf (P-graf). (vii) Zdůraznění budoucnosti umělé inteligence a procesního inženýrství v biosystémech prostřednictvím komerčně založeného paradigmatu multi-omics.

博士
國立清華大學
材料科學工程學系
89
In this study, we discussed the effects of plasma characteristics on the synthesis of materials. Three major topics were included : (1) how the plasmas affect the deposition of one-component single phase diamond films, (2) how the plasmas affect the growth of one-component single phase AlN films, and (3) discussed the relation between the plasma and the oblique-cut surface by depositing diamond-like carbon (DLC) films on oblique-cut silicon substrates. At first, we used Langmuir probe and optical emission spectroscope (OES) to get the plasmas characteristics in the planar large-area microwave plasma source and RF plasma system. The electron density reached a maximum value of 4.4 x 1011 cm-3 at a 0.2 Torr pressure, and the electron temperature reached a minimum value of 0.4 eV under this condition. Because the higher electron density was considered as a better condition for we to proceed the deposition process, we deposited diamond films at this condition. We also used OES to get the major radicals composition in the CH4/CO2/H2 plasma were H、CH、OH and C2. In the diamond synthesis, we find that a deposition rate of 0.2mm/hr could be reached when the CH4 : CO2 : H2 = 6 : 12 : 100. The rate was more faster than other conditions by a factor of 7 because that the optimum radicals composition could be got under this condition. In the deposition of AlN films, we not only got the result that the deposition rate could be enhanced 25% by adding a ICP zone. We also got the deposition rate changed from 15.3 nm/min to 13.0 nm/min when the DC bias was switched from 8 V to -85 V. This is because that more radicals near the substrate surface could be created to enhance the deposition of AlN because more electrons could be created at more the positive DC bias condition. Finally, we deposited DLC on oblique-cut Si(111) substrates to discuss the effects of substrates on the growth mechanism and the structure of DLC films. We find composted DLC/SiC tips could be deposited when the terrace width was less than 21.1 A. The tip density was 25 μm-2 and 38 μm-2 on the substrate with the terrace width of 21.1 A and 14.4 A respectively. A speculation based on the formation of SiC spikes and electric field was provided to explain these results.

碩士
淡江大學
電機工程學系碩士班
106
With the continuous improvement of technology, integrated circuit and process more advanced,Chip functionality and performance is also more diverse and Chip Size is getting smaller, so portable electronic products have become one of the future trends, Portable products must integrate many circuit into SoC, And the system needs more supply voltage, it will also increase the difficulty of designing supply voltage circuit, So using a single input power to produce two different voltage converter, to reduce the number of circuit components. The research proposed is the Single-Inductor Dual-Output DC-DC Converters Using Variable Frequency for Ultrasound System, System is divided into the power stage and controller, the controller has two feedback paths, respectively, buck to 1.2V and boost to 12V, Provide 350mA maximum current load, in order to drive the ultrasonic system probe, ultrasonic probe head needs to be driven by high voltage, In this paper need to use the HV components, so the process is to use T25HVG2 1P3M. The internal circuits include: Bandgap, Clock & Ramp Generator, Error Amplifier, Comparator, Dead Control Circuit, In the future of the power management system needs to output multiple sets of different voltage supply, so how to design a high efficiency and many different outputs, the above are the focus of future research and development of power management

The reflectarray has been considered as a suitable candidate to replace the conventional parabolic reflectors because of its high-gain, low profile, and beam reconfiguration capability. Beam scanning capability and multi-band operation of the microstrip reflectarray have been main research topics in the reflectarray design. Narrow bandwidth of the reflectarray is the main obstacle for the various uses of the reflectarray. The wideband antenna element with a large phase variation range and a linear phase response is one of the solutions to increase the narrow bandwidth of the reflectarray. A four beam scanning reflectarray has been developed. It is the offset-fed microstrip reflectarray that has been developed to emulate a cylindrical reflector. Unlike other microstrip reflectarrays which integrates phase tuning devices such as RF MEMS switches and another phase shifters to the reflectarray elements and control the reflected phase, the beam scanning capability of the reflectarray is implemented by a phased array feed antenna. This method can reduce the complexity of the design of the beam switching reflectarray. A simple method has been investigated to develop multi-band elements in this dissertation. In approach to increase the coverage of the operation bands, a six-band reflectarray has been developed with two layers. Each layer covers three frequency bands. A Butler matrix is one of the useful beamforming networks for a phased array antenna. A Double-Sided Parallel-Strip Line (DSPSL) is adapted for the feeding network of eight array elements. The DSPSL operate very well to feed the microstrip antenna array over the bandwidth to reduce the sidelobe level and a high gain. In another topic of a Butler matrix, a dual-band Butler matrix has been proposed for multi-band applications. A modified Butler matrix is used to reduce a size and a sidelobe level. The bandwidth of the microstrip antenna is inherently small. A broadband circularly polarized microstrip antenna with dual-offset feedlines is introduced in this dissertation. Aperture-coupled feed method is used to feed the stacked patch antennas and a slotcoupled directional coupler is used for the circularly polarized operation. The research presented in this dissertation suggests useful techniques for a beam scanning microstrip reflectarray, phased array antenna, and wideband antenna designs in the modern wireless communication systems.

碩士
國立中正大學
電機工程研究所
105
This thesis presents a single-inductor triple-input dual-output(SI-TIDO) dc-dc converter for photovoltaic and piezoelectric energy harvesting systems. The SI-TIDO dc-dc converter uses buck-boost topology and can operate in continuous or discontinuous current modes that enhance the operation range of the converter. A new algorithm is proposed to share single inductor between all the inputs and outputs in one switch cycle. This algorithm determines light-load or heavy-load mode by current mode pulse width modulation control. Compared with conventional algorithms the proposed one saves a pair of compensator and mode detection circuits. Apart from regulating the output voltage to power the loading circuits, the converter also clamps the photovoltaic voltage to the maximum power point value. The fractional open-circuit voltage method is realized to track maximum power points by the capacitance divider circuit. Leakage reduction sample switch is used to extend the hold time of voltages. The peak efficiency of the proposed SI-TIDO buck-boost converter is 86.6%. The sampling cycle of the capacitance divider circuit is around 1.05 s. Each sampling takes 256 μs. Besides, a delay lock loop based zero-current detector(ZCD) is proposed. The proposed ZCD uses a delay lock loop to lock the time of pre-activation . Therefore, the power of proposed ZCD is lower full-time operation ZCD. The transient response of the ZCD is also faster than one point judgment ZCD because the ZCD have 100ns tolerance range.

In this dissertation, two high-frequency (HF) transformer isolated single-stage integrated ac-dc converters are proposed for a small scale permanent magnet synchronous generator (PMSG) based wind energy conversion system (WECS). These two types of single-stage integrated ac-dc converters include expected functions of HF isolation, power factor correction (PFC), and output regulation in one single-stage. Fixed-frequency phase-shift control and soft-switching operation are employed in both proposed ac-dc converters. After reviewing the literature and discussing pros and cons of the existing topologies, it is preferred that three identical single-phase single-stage integrated converters with interleaved connection configuration are suitable for the PMSG. For the single-phase converter, two new HF isolated single-stage integrated resonant ac-dc converters with fixed-frequency phase-shift control are proposed. The first proposed circuit is HF isolated single-stage integrated secondary-side controlled ac-dc converter. The other proposed circuit is HF isolated single-stage dual-tank LCL-type series resonant ac-dc converter, which brings better solutions compared to the first converter, such as high power factor and low total harmonic distortion (THD) at the ac input side. Approximate analysis approach and Fourier series methods are used to analyze these two proposed converters. Design examples for each one are given and designed converters are simulated using PSIM simulation package. Two experimental circuits are also built to verify the analysis and simulation. The simulated and experimental results reasonably match the theoretical analysis. Then the proposed HF isolated dual-tank LCL-type series resonant ac-dc converter is used for three-phase interleaved connection in order to satisfy requirements of PMSG based WECS. A design example for this three-phase interleaved configuration is given and simulated for validation under several operating conditions.
Graduate
0544
duyimian@uvic.ca