Relevant bibliographies by topics / Solid state transformer control

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Academic literature on the topic 'Solid state transformer control'

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Published: 4 June 2021
Last updated: 16 February 2022

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Journal articles on the topic "Solid state transformer control"

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Busada, Claudio, Hector Chiacchiarini, Sebastian Gomez Jorge, Favio Mengatto, Alejandro Oliva, Jorge Solsona, German Bloch, and Angelica Delgadillo. "Control of a three-stage medium voltage solid-state transformer." Advances in Science, Technology and Engineering Systems Journal 2, no. 6 (December 2017): 119–29. http://dx.doi.org/10.25046/aj020615.

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Tahir, Umair, Ghulam Abbas, Dan Glavan, Valentina Balas, Umar Farooq, Marius Balas, Ali Raza, Muhammad Asad, and Jason Gu. "Design of Three Phase Solid State Transformer Deployed within Multi-Stage Power Switching Converters." Applied Sciences 9, no. 17 (August 29, 2019): 3545. http://dx.doi.org/10.3390/app9173545.

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This paper presents a symmetrical topology for the design of solid-state transformer; made up of power switching converters; to replace conventional bulky transformers. The proposed circuitry not only reduces the overall size but also provides power flow control with the ability to be interfaced with renewable energy resources (RESs) to fulfill the future grid requirements at consumer end. The proposed solid-state transformer provides bidirectional power flow with variable voltage and frequency operation and has the ability to maintain unity power factor; and total harmonic distortion (THD) of current for any type of load within defined limits of Institute of Electrical and Electronics Engineers (IEEE) standard. Solid state transformer offers much smaller size compared to the conventional iron core transformer. MATLAB/Simulink platform is adopted to test the validity of the proposed circuit for different scenarios by providing the simulation results evaluated at 25 kHz switching frequency.
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Sun, Baiyan, Congzhe Gao, Xiangdong Liu, Zhen Chen, and Tong Zheng. "Voltage-Adjustable Capacitor Isolated Solid-State Transformer." IEEE Transactions on Industrial Electronics 67, no. 9 (September 2020): 7550–59. http://dx.doi.org/10.1109/tie.2019.2945305.

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Yun, Chun-gi, and Younghoon Cho. "Active Hybrid Solid State Transformer Based on Multi-Level Converter Using SiC MOSFET." Energies 12, no. 1 (December 26, 2018): 66. http://dx.doi.org/10.3390/en12010066.

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As the types of loads have been diversified and demand has increased, conventional distribution transformers are difficult to maintain the constant voltage against voltage drop along with distance, grid voltage swell/sag, and various loads. Also, it is hard to control the power flow when connecting renewable energy sources. Active hybrid solid state transformer (AHSST) is application to keep the voltage and power quality. AHSST is a system that combines conventional distribution transformer and converter. Accordingly, it can be applied directly to distribution infrastructure and it has both the advantages of solid state transformer (SST) and conventional transformer. AHSST is capable of active voltage and current control and power factor control. It has a simpler structure than SST and it can perform the same performance with the lower rating converter. This paper presents two stage AHSST system based on multi-level converter. The converter is composed of the back-to-back converter using silicon carbide (SiC) metal-oxide semiconductor field effect transistor (MOSFET). Proposed system has a wider voltage and power flow control range, lower filter size, and simpler control sequence than existing AHSST systems. The performance of the proposed system was verified by prototype system experiments.
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Raaed Faleh Hassan, Dr. "Design and software implementation of solid state transformer." International Journal of Engineering & Technology 7, no. 3 (August 21, 2018): 1776. http://dx.doi.org/10.14419/ijet.v7i3.16423.

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The work presented in this paper concerned with the analysis, design and software implementation of the Solid State Transformer as an alternative to the conventional power transformer. The proposed transformer aims to perform the same task as the conventional one with additional facilities and advantages. Three stages are considered to configure the Solid State Transformer. The first stage which is known as input stage and implemented using Vienna rectifier which converts the AC voltage of the main supply to a DC voltage. The second stage (isolation stage) step down the DC voltage to a lower level DC voltage. This stage consists of a single – phase five-level diode clamped inverter, 1 KHz step – down transformer and fully controlled bridge rectifier. The output stage (third stage) is a three-phase three-level diode clamped inverter which converts the low level DC voltage to a three-phase, 50 Hz AC voltage. Model Predictive Current Control has been employed for driving transformer’s stages. The gating signal is produced directly when the given cost function is minimized, therefore there is no need of any modulator. Behavior of the proposed structure is achieved by simulation which shows high quality power conversion with low Total Harmonic Distortion.
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Feng, Jianghua, Jing Shang, Zhixue Zhang, Huadong Liu, and Zihao Huang. "Solid-state transformer-based new traction drive system and control." Frontiers of Mechanical Engineering 13, no. 3 (November 27, 2017): 411–26. http://dx.doi.org/10.1007/s11465-018-0467-0.

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H. H. De Silva, H., D. K. J. S. Jayamaha, and N. W. A. Lidula. "Review on design and control of solid state transformer based microgrids." AIMS Energy 7, no. 6 (2019): 901–23. http://dx.doi.org/10.3934/energy.2019.6.901.

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Tarisciotti, Luca, Pericle Zanchetta, Alan Watson, Pat Wheeler, Jon C. Clare, and Stefano Bifaretti. "Multiobjective Modulated Model Predictive Control for a Multilevel Solid-State Transformer." IEEE Transactions on Industry Applications 51, no. 5 (September 2015): 4051–60. http://dx.doi.org/10.1109/tia.2015.2429113.

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Liu, Yang, Da Hai Zhang, and De Da Sun. "Performance Analysis of a Solid State Transformer for Smart Grid." Applied Mechanics and Materials 441 (December 2013): 174–77. http://dx.doi.org/10.4028/www.scientific.net/amm.441.174.

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Solid State Transformer (SST) has many attractive characteristics, including power quality improvement and reactive power compensation. The paper investigates the topology and control schemes of SST, and discusses its flexibility and reliability for both grid and customers. A model of SST applied for distribution network is constructed, and simulation shows the SST with appropriate control scheme can provide excellent power supply during both steady-state and dynamic-state with varying load.
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Jaiswal, Rahul, Anshul Agarwal, Vineeta Agarwal, and Badre Bossoufi. "Control Strategy of a Solid State Transformer for the Grid-side Converter." Recent Advances in Electrical & Electronic Engineering (Formerly Recent Patents on Electrical & Electronic Engineering) 13, no. 1 (February 20, 2020): 27–35. http://dx.doi.org/10.2174/2352096511666181029123631.

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Background: This paper presents a decoupled control technique for balancing the power and voltage through grid side converter using a solid state transformer. Methods: Decoupling control is essentially a voltage oriented control technique with the objective of eliminating cross-coupling elements. Use of this decouple technique, allows bi-directional power flow control for both active and reactive power, thereby maintaining steady state DC interference voltage. Results: The performance of this scheme is analyzed & the results are obtained from the Matlab/Simulink model. Conclusion: From the above analysis, it can be concluded that the decoupled control strategy can easily eliminate the cross- coupled element of a solid state transformer for the grid side converter.
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Dissertations / Theses on the topic "Solid state transformer control"

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Schietekat, Louis Magnus. "Design and implementation of the main controller of a solid-state transformer." Thesis, Stellenbosch : Stellenbosch University, 2011. http://hdl.handle.net/10019.1/17899.

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Thesis (MScEng)--Stellenbosch University, 2011.
ENGLISH ABSTRACT: The Solid-State Transformer (SST) is presented as an alternative to the traditional Line-Frequency Transformer (LFT) used for voltage-level transformation in distribution grids. The LFT technology is highly matured which results in low costs and high efficiency. The SST however, introduces several advantages compared to the LFT, some of which are input unity power-factor, near perfect output-voltage regulation, frequency variation as well as harmonic filtering. The SST consists of three power-electronic converter stages: The input stage, the isolation stage and the output stage. The input and isolation stages are implemented with a multilevelconverter topology incorporating a converter-stack for each phase. Each stack consists of N converter building blocks, called cells. In this thesis the design and implementation of the main controller is presented. The main controller, together with N cell controllers, is responsible for the control of the cells within the respective stack. Three main controllers are thus implemented within the SST. Each cell consists of an Active Rectifier (AR) and a DC-DC Converter (DC-DC). The SST control design thus starts with the AR control which is subsequently expanded to Cascaded Active-Rectifier (CAR) control. Design is completed with the addition of the DC-DC control. Time domain simulations of the AR- and CAR-control are presented and discussed. Test measurements, verifying functionality of each control design-phase, are presented and discussed.
AFRIKAANSE OPSOMMING: Die Drywingselektroniese Transformator (DET) word voorgestel as ’n alternatief vir die Lyn Frekwensie Transformator (LFT) wat gebruik word vir spannings-vlak tranformasie op distribusie vlak. The LFT tegnologie is ver gevorderd wat ly tot hoë effektiwiteit en lae kostes. The DET bied wel voordele soos intree eenheids arbeid faktor, na aan perfecte uittree-spannings regulasie, frequensie variasie sovel as harmoniese filrteering. Die DET bestaan uit drie drywingselektroniese omsetter stadiums: Die intree-stadium, die isolasie-stadium en die uittree-stadium. The intree- en isolasie-stadiums word geïmplimenteer met ’n multivlak-omsetter topologie wat bestaan uit ’n omsetter-stapel vir elke fase. Elke stapel bestaan uit N omsetter boustene wat selle genoem word. In hierdie tesis word the ontwerp en implementasie van die hoofbeheerder voorgestel. Die hoofbeheerder, tesame met N selbeheerders, is verantwoordelik vir die beheer van elke sel in die spesifieke stapel. In die DET word daar dus drie hoofbeheerders gebruik. Elke sel bestaan uit ’n Aktiewe Gelykrigter (AG) en ’n GS-GS omsetter (GS-GS). Die DET beheerontwerp begin dus met die (AG) beheer wat daarna uitgebrei word na Kaskade Aktiewe Gelykrigter (KAG) beheer. Die beheer ontwerp word voltooi deur die byvoeging van die GSGS beheer. Tyd-gebied simulasies van die AG- en KAG-beheer word voorgelê en bespreek. Toetsmetings wat die funksionaliteit van elke beheer ontwepsfase verifeer, word voorgelê.
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Du, Toit Daniel Josias. "Predictive control of a series-input, parallel-output, back-to-back, flying-capacitor multilevel converter." Thesis, Stellenbosch : Stellenbosch University, 2011. http://hdl.handle.net/10019.1/18087.

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Thesis (MScEng (Electrical and Electronic Engineering))--Stellenbosch University, 2011.
ENGLISH ABSTRACT: This thesis investigates the viability of constructing a solid-state transformer (SST) with a series-input, parallel-output connection of full-bridge, three-level ying-capacitor converters. It focusses on the active recti er front-end of the SST which is used to control the input current to be sinusoidal and in-phase with the sinusoidal input voltage. A stack of two converters are built and tested. The input current, as well as the ying capacitor voltages of the two active recti ers in the stack, are actively controlled by a nite-state model-based predictive (FS-MPC) controller. The use of multiple ying-capacitor converters poses a problem when using FS-MPC because of the large number of possible switching states to include in the prediction equations. Three FS-MPC control algorithms are proposed to attempt to overcome the problem associated with the large number of switching states. They are implemented on an FPGA digital controller. The algorithms are compared on the bases of voltage and current errors, as well as their responses to disturbances that are introduced into the system. The simulation and experimental results that are presented shows that by interleaving the control actions for the two converters, one can obtain fast and robust responses of the controlled variables. The viability of extending the interleaving control algorithm beyond two converters is also motivated.
AFRIKAANSE OPSOMMING: Hierdie tesis ondersoek die moontlikheid van volbrug, drievlak vlieënde-kapasitoromsetters wat gebruik word om 'n serie-intree, parallel-uittree drywingselektroniese transformator (DET) te bou. Dit fokus op die aktiewe gelykrigter van die DET wat gebruik word om die intreestroom te beheer om sinusvormig en in fase met die sinusvormige intreespanning te wees. 'n Stapel van twee omsetters word gebou en getoets. Die intreestroom, sowel as die vlieënde kapasitorspannings van die twee aktiewe gelykrigters in die stapel, word aktief beheer met behulp van 'n eindige-toestand, model-gebaseerde voorspellende beheerder (ET-MVB). Die gebruik van veelvuldige vlieënde-kapasitoromsetters bemoeilik die implementering van 'n ET-MVB-beheerder as gevolg van die groot aantal skakeltoestande wat in die voorspellende vergelykings in ag geneem moet word. Drie ET-MVB-algoritmes word voorgestel om te poog om die probleme, wat met die groot aantal skakeltoestande geassosieer word, te oorkom. Die algoritmes word in 'n FPGA digitale verwerker geïmplementeer. Die algoritmes word vergelyk op grond van hul stroom- en spanningsfoute, asook hul reaksie op steurings wat op die stelsel ingevoer word. Die simulasie en praktiese resultate toon dat, deur die beheeraksies vir die twee omsetters te laat oorvleuel, die gedrag van die beheerde veranderlikes vinniger en meer robuust is. Die moontlikheid om die oorvleuelende beheeraksies uit te brei tot meer as twee omsetters word ook gemotiveer.
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Du, Toit Delyno Johannes. "ATM cash management for a South African retail bank." Thesis, Stellenbosch : Stellenbosch University, 2011. http://hdl.handle.net/10019.1/17977.

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Thesis (MScEng)--Stellenbosch University, 2011.
ENGLISH ABSTRACT: Cash can be seen as a fast moving consumer good. Approaching cash as inventory within the ATM cash management environment of a South African retail bank, provided the opportunity to apply well known industrial engineering techniques to the financial industry. This led to the application of forecasting, inventory management, operational research and simulation methods. A forecasting model is designed to address the multiple seasonalities and calendar day effects that is prevalent in the demand for cash. Special days, e.g. paydays, lead to an increase in demand for cash. The weekday on which the special day falls will also influence the demand. The multiplicative Holt-Winters method is combined with an improvised distribution method to determine the demand for cash for the region and per ATM. Reordering points are calculated and simulated to form an understanding of the effect this will have on the ATM network. Direct replenishment and the traveling salesman problem is applied and simulated to determine the difference in using one or the other. Various simulation models are build to test the operational and financial impact when certain variables are amended. It is evident that more work is required to determine the optimal combination of variable values, i.e. forecasting frequency, aggregate forecasting or individual forecasting, reorder levels, loading levels, lead times, cash swap or cash add, and the type of transportation method. Each one of these are a science in itself and cannot be seen (calculated) in isolation from the other as a change in one can affect the overall operational efficiency and costs of the ATM network. The thesis proves that significant cost savings is possible, compared to the current set-up, when applying industrial engineering techniques to a geographical ATM network within South Africa.
AFRIKAANSE OPSOMMING: Kontant kan gesien word as vinnig bewegende verbruikersgoedere. Deur kontant te benader as voorraad binne die ATM kontant bestuur omgewing van ’n Suid Afrikaanse kleinhandelsbank, het dit die geleentheid geskep om bekende bedryfsingenieurstegnieke toe te pas in die finansiële industrie. Dit het gelei tot die toepassing van vooruitskatting, voorraadbestuur, operasionele navorsing en simulasie metodes. ’n Vooruitskattingsmodel is ontwerp om die verskeie seisoenaliteite en kalenderdae effekte wat deel uitmaak van die vraag na kontant aan te spreek. Spesiale dae, bv. betaaldae, lei tot ’n toename in die vraag na kontant. Die weeksdag waarop die spesiale dag voorkom sal ook ’n invloed hê op die vraag. Die multiplikatiewe Holt-Winters metode is gekombineer met ’n geïmproviseerde verspreidingsmetode om die vraag na kontant vir die streek en per ATM the bepaal. Bestellingsvlakke is bereken en gesimuleer om ’n prentjie te skep van die invloed wat dit op die ATM netwerk sal hê. Direkte hervulling en die handelsreisigerprobleem is toegepas en gesimuleer om die verskille te bepaal tussen die gebruik van of die een of die ander. Veskeie simulasie modelle is gebou om die operasionele en finansiële impak te toets, wanneer sekere veranderlikes aangepas word. Dit is duidelik dat meer werk nodig is om die optimale kombinasie van veranderlike waardes te bepaal, bv. vooruitskatting frekwensie, totale vooruiskatting of individuele vooruitskatting, bestellingsvlakke, leitye, kontant omruiling of kontant byvoeging, en die tipe vervoermetode. Elkeen van hierdie is ’n wetenskap op sy eie en kan nie in isolasie gesien en bereken word nie, want ’n verandering van een se waarde kan die hele operasionele doeltreffendheid en kostes van die ATM netwerk beïnvloed.
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Adabi, Firouzjaee Mohammad Ebrahim. "Advanced modeling of solid state transformer." Doctoral thesis, Universitat Politècnica de Catalunya, 2018. http://hdl.handle.net/10803/461451.

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The solid state transformer (SST) is seen as a proper replacement of the conventional iron-and-copper transformer in the future smart grid . The SST offers several benefits (e.g. enhanced power quality performance or reactive power control at both primary and secondary sides) that can be of paramount importance for the development of the smart grid . This research focuses on the development and implementation of an advanced model of a three stage bidirectional SST in Matlab/Simulink. The goal is to obtain an realistic SST model (i.e. as close to the real SST as possible) that could duplicate the performance of a real MV/LV SST. This considered design consists of three main stages: medium voltage (MV) stage, isolation stage, and low voltage (LV) stage. When the power flows from the MV side to the LV side, the input power-frequency ac voltage is converted into a MV dc voltage by the three-phase ac/dc converter, which in such case works as rectifier. The isolation stage, which includes a high-frequency transformer (HFT) and the two corresponding MV- and LV-side converters, first converts the MV-side dc voltage into a high-frequency square-wave voltage applied to the primary of the HFT; the secondary side square-wave signal is then converted to a LV dc waveform by the LV-side converter, which also works as rectifier. Finally, the output LV-side three-phase dc/ac converter, which works as inverter, provides the output power-frequency ac waveform from the LV-side dc link. Si-based semiconductor technologies can be used for MV applications using a multilelvel configuration. Recently, modular multilevel converter (MMC) topologies have attracted attention for high or medium voltage applications. These converters can provide an effective topology for the MV side of the SST; their main advantages are modularity and scalability: the desired voltage level can be easily achieved by a series connection of MMC sub-modules (SMs). In addition,a MMC topology can provide high power quality and efficiency with reduced size of passive filters. These features made the MMC option an attractive topology for the MV stage of the SST. This thesis proposes a three-stage SST configuration based on MMC technology for MV converters. * The input stage of the SST is connected to the distribution system via RL filters and its three-phase configuration uses a MMC technology. A half-bridge configuration is proposed for each SM. * The isolation stage consists of three parts: a MV single-phase MMC, the high-frequency transformer (HFT), and a single-phase LV PWM converter. * The LV side of the SST uses a three-phase four-leg PWM converter, with an RL impedance for filtering currents and a capacitor bank for filtering voltages. The converters and their controller have been implemented adn tested considering models without and with semiconductor losses, while the SST model has been tested as a stand-alone device and a compnent of a distribution system. The model has been tested under severe dynamic and unbalanced conditions. The simulation results support the choices made for any SST stage and proves that the proposed design could be a feasible choice for the future SST.
El Transformador de Estado Sólido ("Solid State Transformer" por sus siglas en inglés) es visto como un reemplazo adecuado del transformador convencional en las futuras redes inteligentes (smart grids ). Este nuevo dispositivo presenta una amplia gama de prestaciones (p.e. mejora de la cualidad de suministro) que pueden ser de crucial importancia para el desarrollo de las redes inteligentes. El principal objetivo de esta tesis es que desarrollar e implantar el en Matlab/Simulink un modelo realista de estado sólido trifásico y bidireccional, que pueda duplicar el comportamiento de un transformador de estado sólido de Media-Baja tensión. El diseño considerado consiste en tres etapas: etapa en media tensión (MT), etapa intermedia, etapa en baja tensión (BT). Cuando la potencia fluye del terminal en media al terminal en baja tensión, la tensión alterna en el terminal de entrada a media tensión y frecuencia de operación 50 Hz se convierte en continua a media tensión mediante un convertidor trifásico rectificador. La etapa intermedia es un puente activo dual, que incluye un transformador de alta frecuencia y los correspondientes convertidores en media y baja tensión: primero, la media tensión continua es convertida en media tensión alterna a alta frecuencia; esta tensión es reducida a baja tensión preservando la alta frecuencia mediante el transformador, finalmente, la tensión en el terminal de salida del transformador es rectificada y convertida en baja tensión continua). La entrada en la etapa de salida en BT es, por tanto, una tensión continua que es convertida en tensión alterna a frecuencia de operación 50 Hz mediante un convertidor que funciona como inversor. Puesto que el diseño del dispositivo estudiado en esta tesis es bidireccional, en caso de que la potencia tenga que fluir desde el lado de BT al lado de MT, la función de los convertidores se invierte (es decir, los rectificadores pasan a operar como inversores, los inversores pasan a operar como rectificadores) en cualquiera de las etapas. Los actuales semiconductores solo pueden ser utilizados en aplicaciones de media y alta tensión empleando convertidores multi-nivel. Durante los últimos años ha ganado popularidad la tecnología MMC (modular multilevel converter), que permite diseñar configuraciones adecuadas para el lado de MT de un transformador de estado sólido; sus principales ventajas están en modularidad y escalabilidad: el nivel de tensión adecuado se puede conseguir mediante la conexión en serie de tantos sub-módulos como sea necesario. Además con la tecnología MMC se puede obtener una alta calidad en las ondas de tensión y corriente, así como un elevado rendimiento con tamaño reducido en los filtros de entrada. Esta tesis propone un diseño trifásico bidireccional con las siguientes características: - La etapa de entrada está conectada a una red de distribución en MT mediante filtros RL y su configuración trifásica usa convertidores de tecnología MMC. - La etapa intermedia contiene tres secciones: un convertidor monofásico en configuración MMC, un transformador de MT/BT y alta frecuencia, y un convertidor monofásico en BT. - La etapa de salida en BT usa un convertidor trifásico PWM (pulse wide modulation), con un filtro RL para las corrientes y un banco de condensadores para filtrar tensiones. Los convertidores han sido implantados en Matlab/Simulink y simulados considerando modelos con y sin pérdidas en los semiconductores, mientras que el modelo completo de transformador de estado sólido ha sido analizado considerando dos configuraciones distintas del sistema a estudiar: el transformador aislado y formando parte de una red de distribución en MT. Los modelos de transformador con y sin pérdidas han sido simulados bajo ciertas condiciones de operación. Los resultados confirman que la configuración seleccionada para cada etapa del nuevo dispositivo permite obtener un diseño fiable que puede mejorar el funcionamiento de las futuras redes inteligentes.
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Godoi, Lucas Antonio Alves de. "Transformador de estado sólido no controle de fluxo de potência em redes de distribuição." Ilha Solteira, 2018. http://hdl.handle.net/11449/154491.

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Orientador: Júlio Borges de Souza
Resumo: O transformador de estado sólido tem se apresentado como uma ferramenta indispensável na construção das novas redes elétricas inteligentes, uma vez que essa nova estrutura de rede altera o layout tradicional, viabilizando a conexão de fontes de energia descentralizadas. Contudo, essa conexão de sistemas de geração distribuída na rede originou a bidirecionalidade do fluxo de potência, resultando em um novo panorama para as atividades de operação e manutenção das redes para as distribuidoras de energia. A análise dos possíveis impactos técnicos gerados na rede de distribuição deve ser realizada, com o intuito de garantir um nível de qualidade energética dentro dos padrões estabelecidos pela Agência Nacional de Energia Elétrica – ANEEL. Dentre os impactos, destacam-se a elevação do nível de tensão e a alteração do fator de potência, ambos, produzidos pelo excesso de potência injetada na rede por este novo cenário de geração de energia. Nesse contexto, esta dissertação tem como principal objetivo analisar o comportamento de uma rede de distribuição genérica com penetração de geração distribuída e avaliar o perfil de tensão diante de diferentes níveis de inserção dessa geração na rede. As características de ajuste de tensão instantânea e capacidade de interação com sistemas de armazenamento que o transformador de estado sólido possui foram empregadas no auxílio da regulação dos níveis de tensão que se apresentaram fora dos padrões determinados pela resolução 794/2018 da ANEEL, qua... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: The solid state transformer has been presented as an essential tool in the construction of new intelligent electric grids, since this new network structure changes the traditional layout, making possible the connection of decentralized energy sources. However, this connection of distributed generation systems in the network created the bidirectionality of the power flow, resulting in a new panorama for the power distributors concerning the networks activities of operation and maintenance. The analysis of the possible technical impacts generated in the distribution network should be carried out with the purpose of guaranteeing a level of energy quality within the standards established by the National Electric Energy Agency (ANEEL). Among the impacts, we highlight the elevation of the voltage level and the change in the power factor, both produced by the excess power injected into the grid by this new energy generation scenario. In this context, the main objective of this dissertation is to analyze the behavior of a generic distribution network with distributed generation penetration and to evaluate the voltage profile before different levels of insertion of this generation in the network. The solid state transformer has instantaneous voltage adjustment characteristics and interaction capacity with storage systems, which were used to aid in the regulation of voltage levels that were out of the standards determined by ANEEL resolution 794/2018, when a high level of distributed g... (Complete abstract click electronic access below)
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Kendall, Haydn G. "Investigation of leakage flux in transformer tanks." Thesis, Cardiff University, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.329641.

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Wolf, Marko. "Design and implementation of a modular converter with application to a solid state transformer." Thesis, Stellenbosch : University of Stellenbosch, 2009. http://hdl.handle.net/10019.1/2773.

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Thesis (MScEng (Electrical and Electronic Engineering))--University of Stellenbosch, 2009.
ENGLISH ABSTRACT: The purpose of a solid state transformer (SST) is to use power electronic converters to mimic the operation of the conventional distribution transformer. These power electronic converters are proposed to overcome the disadvantages of the conventional distribution transformer. The advantages of a SST include near perfect voltage regulation and harmonic isolation between the primary and secondary windings of the transformer. This thesis discusses the design and development of the different converters in a solid state transformer (SST). A prototype modular back-to-back converter is developed for the input and isolation stage of the SST. The isolation stage consists of a high voltage DC-DC converter, which transfers power across the isolation barrier of the SST. This stage is evaluated in the laboratory with special attention being paid to the efficiency of the converter. The second aspect that this thesis addresses is the output stage of the SST, namely a three phase inverter. The discussion of the output stage focuses on the losses occurring in the inverter. The switching device losses are calculated by means of an adapted numerical method as opposed to using conventional analytical methods. The presented numerical method is compared to the existing analytical method and the findings are discussed. A double loop control strategy is implemented for the output stage inverter. The inner current loop utilizes a predictive control strategy. The control analysis of the double loop controller is discussed and evaluated in the laboratory. All the converters that are discussed in this thesis are evaluated in the laboratory and the relevant measurements are included.
AFRIKAANSE OPSOMMING: Die doel van ’n drywingselektroniese transformator (DET) is om drywingselektroniese omsetters te gebruik om die werking van die konvensionele distribusietransformator na te boots. Hierdie drywingselektroniese omsetters word voorgestel ten einde die nadele van die konvensionele distribusietransformator te bowe te kom. Die voordele van ’n DET sluit in: feitlik perfekte regulering van spanning en harmoniese isolasie tussen die primˆere en sekondˆere windings van die transformator. Hierdie tesis bespreek die ontwerp en ontwikkeling van die verskillende omsetters in ’n drywingselektroniese transformator (DET). ’n Prototipe modulˆere rug-aan-rug-omsetter word ontwikkel vir die intree- en isolasiefase van die DET. Die isolasiefase bestaan uit ’n hoogspanning- GS-GS omsetter, wat drywing oor die isolasiegrens van die DET heen oordra. Hierdie omsetter word in die laboratorium ge¨evalueer met besondere aandag aan die doeltreffendheid van die omsetter. Die tweede aspek waarna in hierdie tesis gekyk word, is die uittreefase van die DET, naamlik ’n driefaseomsetter. Die bespreking van die uittreefase fokus egter op die verliese wat in die omsetter voorkom. Die verliese van die skakelaars word bereken deur middel van ’n aangepaste numeriese metode teenoor die gebruik van konvensionele analitiese metodes. Die numeriese metode wat aangebied word, word vergelyk met die bestaande analitiese metode en die bevindings word bespreek. ’n Dubbellus-beheerstrategie word vir die uittreefase-omsetter ge¨ımplementeer. Die binneste stroomlus word ge¨ımplementeer deur van ’n voorspelbare beheerstrategie gebruik te maak. Die beheeranalise van die dubbellusbeheerder word bespreek en in die laboratorium ge¨evalueer. Al die omsetters wat in hierdie tesis bespreek word, word in die laboratorium ge¨evalueer en die relevante metings word ingesluit.
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8

Hills, M. "Solid state sensors for gas monitoring and control." Thesis, University of Cambridge, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.604069.

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Abstract:
A probe for the continuous on-line measurement of hydrogen dissolved in liquid aluminium has been developed using the perovskite proton conductor CaZrO3-In, in conjunction with a Zr,ZrH2 solid state reference. The probe has been designed to an industrial prototype standard, and measurements were in good agreement with established (but cumbersome) hydrogen measurement methods such as the AISCAN analyser, LECO analysis, and the Straube-Pfeiffer technique. The electrolytic domain of CaZrO3-In has been investigated using a novel double-cell arrangement to simultaneously fix the chemical potential of both hydrogen and oxygen at the electrodes of a pellet of the electrolyte. As predicted from the defect equilibria, the electrolyte makes the transition from the hydrogen ion conduction domain to the oxygen ion domain under conditions of low oxygen partial pressure and high hydrogen partial pressure. The pO2 corresponding to the Zr,ZrO2 equilibrium is low enough to locate CaZrO3-In in the oxygen ion conduction domain. Sodium b-alumina was employed to measure the pO2 developed under operating conditions at the sensor reference electrode by a sample zirconium containing dissolved oxygen. This was found to be many orders of magnitude higher than the pO2 corresponding to the Zr,ZrO2 equilibrium, and was five magnitude higher than the pO2 marking the H+/O2- conduction domain boundary for CaZrO3-In, suggesting that Zr, ZrH2 may be suitable as a reference material. Hydrogen sensors manufactured using CaZrO3-In as the solid electrolyte and a Zr,ZrH2 solid state reference were found to provide stable, reproducible emfs at constant temperature and pH2, and showed full Nernstian response following a change in pH2 at the measuring electrode. The recently developed Current Reversal Mode can accurately determine the emf of a solid electrolyte sensor, and also provides additional information in the form of the sensor resistance. A detailed study has identified how the CRM parameters should be selected in order to make accurate measurements. The sensor resistance measurement was used to improve measurement accuracy and stability of an internally heated yttria stabilised zirconia oxygen sensor. When applied to a commercially available probe for measuring hydrogen dissolved in liquid aluminium it was found that erroneous emf readings, measured after prolonged use in the melt, were accompanied by a corresponding increase in the sensor resistance, opening up the possibility of using CRM as an on-line diagnostic tool.
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Lubeigt, Walter. "Intra-cavity adaptive optics control of solid-state lasers." Thesis, University of Strathclyde, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.431784.

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Storcz, Markus J. "Decoherence, control, and encoding of coupled solid-state quantum bits." Diss., lmu, 2005. http://nbn-resolving.de/urn:nbn:de:bvb:19-46047.

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Books on the topic "Solid state transformer control"

1

Gottlieb, Irving M. Power control with solid state devices. Reston, Va: Reston Pub. Co., 1985.

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Power control with solid-state devices. Blue Ridge Summit, PA: TAB Professional and Reference Books, 1987.

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Bhardwaj, Rajni Miglani. Control and Prediction of Solid-State of Pharmaceuticals. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-27555-0.

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Maloney, Timothy J. Industrial solid-state electronics: Devices and systems. 2nd ed. London: Prentice-Hall International, 1986.

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Industrial solid-state electronics: Devices and systems. 2nd ed. Englewood Cliffs, N.J: Prentice-Hall, 1986.

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Solid state electronic controls for air conditioning and refrigeration. Englewood Cliffs, N.J: Prentice Hall, 1989.

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Solid state AC motor controls: Selection and application. New York: Dekker, 1987.

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Ahuja, Samir. A control system study of a solid-state energy recovery scheme. Ottawa: National Library of Canada, 1993.

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Measurement and control of charged particle beams. Berlin: Springer, 2002.

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Aglow, Stanley H. Electronic HVAC controls simplified. Troy, MI: Business News Pub. Co., 1988.

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Book chapters on the topic "Solid state transformer control"

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Joshi, Kedar, U. K. Balagopal, Sameer Sanjeevi, A. P. Viswanath, and S. Parvathy. "Design and Performance Analysis of Solid-State Transformer." In Advances in Automation, Signal Processing, Instrumentation, and Control, 2779–91. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-15-8221-9_260.

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Kuang, W., S. W. Or, C. M. Leung, and S. L. Ho. "Development of Piezoelectric Transformer -Coupled Solid State Relay for Electrical Circuit Control in Railway Systems." In Proceedings of the 1st International Workshop on High-Speed and Intercity Railways, 329–38. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-27963-8_30.

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Yoon, Man Soon, H. K. Kim, and Soon Chul Ur. "Dome-Shaped High Power Transformer for Driving A 55 W PL Lamp." In Solid State Phenomena, 199–202. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/3-908451-31-0.199.

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Gosiewski, Zdzisław, and Andrzej Piotr Koszewnik. "Modeling of Beam as Control Plane for a Vibration Control System." In Solid State Phenomena, 59–64. Stafa: Trans Tech Publications Ltd., 2008. http://dx.doi.org/10.4028/3-908451-60-4.59.

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Nishizawa, Jun-ichi. "Stoichiometry Control of Compound Semiconductor Crystals." In Solid State Materials, 279–307. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-662-09935-3_19.

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Brazdeikis, Liudas, and Diana Rėklaitienė. "Modeling of Trainer's Electric Drive Control." In Solid State Phenomena, 238–43. Stafa: Trans Tech Publications Ltd., 2008. http://dx.doi.org/10.4028/3-908451-60-4.238.

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Namba, Hiromitsu, Takehiko Orii, Hiroki Ohno, and Glenn W. Gale. "Insights into Watermark Formation and Control." In Solid State Phenomena, 83–86. Stafa: Trans Tech Publications Ltd., 2005. http://dx.doi.org/10.4028/3-908451-06-x.83.

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Shibayanagi, Toshiya, Masahiro Tsukamoto, N. Matsuda, Y. Soga, Nobuyuki Abe, and Masaaki Naka. "Control of Microstructure by Laser Spot Heating." In Solid State Phenomena, 337–42. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/3-908451-33-7.337.

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Saga, Koichiro, and Takeshi Hattori. "Organic Contamination Control in Silicon Surface Processing." In Solid State Phenomena, 49–54. Stafa: Trans Tech Publications Ltd., 2005. http://dx.doi.org/10.4028/3-908451-06-x.49.

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Kozaczek, Kris J. "Texture Control in Manufacturing of ULSI Devices." In Solid State Phenomena, 101–6. Stafa: Trans Tech Publications Ltd., 2005. http://dx.doi.org/10.4028/3-908451-09-4.101.

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Conference papers on the topic "Solid state transformer control"

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Wang, Fei, Alex Huang, Gangyao Wang, Xu She, and Rolando Burgos. "Feed-forward control of solid state transformer." In 2012 IEEE Applied Power Electronics Conference and Exposition - APEC 2012. IEEE, 2012. http://dx.doi.org/10.1109/apec.2012.6165964.

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Khazraei, M., V. A. K. Prabhala, R. Ahmadi, and M. Ferdowsi. "Solid-state transformer stability and control considerations." In 2014 IEEE Applied Power Electronics Conference and Exposition - APEC 2014. IEEE, 2014. http://dx.doi.org/10.1109/apec.2014.6803615.

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Bin Turiman, Muhammad Syahir, Nguyen Duy-Dinh, and Goro Fujita. "Droop Control Implementation In Solid State Transformer." In 2018 12th South East Asian Technical University Consortium (SEATUC). IEEE, 2018. http://dx.doi.org/10.1109/seatuc.2018.8788870.

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Baolong Liu, Yabing Zha, Tao Zhang, and Shiming Chen. "Sliding mode control for rectifier stage of solid state transformer." In 2016 14th International Workshop on Variable Structure Systems (VSS). IEEE, 2016. http://dx.doi.org/10.1109/vss.2016.7506931.

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Liu, Baolong, Yabing Zha, Tao Zhang, and Shiming Chen. "Predictive direct power control for rectifier stage of solid state transformer." In 2016 12th World Congress on Intelligent Control and Automation (WCICA). IEEE, 2016. http://dx.doi.org/10.1109/wcica.2016.7578479.

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Haque, Moinul Shahidul, and Seungdeog Choi. "Realtime Degradation-Aware Adaptive Control of Solid State Transformer." In 2020 IEEE Applied Power Electronics Conference and Exposition (APEC). IEEE, 2020. http://dx.doi.org/10.1109/apec39645.2020.9124174.

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Xiaolin Mao, S. Falcones, and R. Ayyanar. "Energy-based control design for a solid state transformer." In Energy Society General Meeting. IEEE, 2010. http://dx.doi.org/10.1109/pes.2010.5590097.

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Niyitegeka, Gedeon, Juyoung Park, GyeongSig Cho, Gawoo Park, and Jaeho Choi. "Control Algorithm Design and Implementation of Solid State Transformer." In 2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 - ECCE Asia). IEEE, 2019. http://dx.doi.org/10.23919/icpe2019-ecceasia42246.2019.8797090.

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Weng, Haoyuan, Jinghang Li, and Dehong Xu. "Fault Tolerance Scheme for a DC Solid State Transformer." In 2020 IEEE 9th International Power Electronics and Motion Control Conference (IPEMC2020-ECCE Asia). IEEE, 2020. http://dx.doi.org/10.1109/ipemc-ecceasia48364.2020.9368171.

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Wang, Gangyao, Xu She, Fei Wang, Arun Kadavelugu, Tiefu Zhao, Alex Huang, and Wenxi Yao. "Comparisons of different control strategies for 20kVA solid state transformer." In 2011 IEEE Energy Conversion Congress and Exposition (ECCE). IEEE, 2011. http://dx.doi.org/10.1109/ecce.2011.6064196.

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Reports on the topic "Solid state transformer control"

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BHATTACHARYA, SUBHASHISH. Flexible Large Power Solid State Transformer (FLP-SST). Office of Scientific and Technical Information (OSTI), February 2019. http://dx.doi.org/10.2172/1647580.

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Eric D. Wachsman. MULTIFUNCTIONAL (NOx/CO/O2) SOLID-STATE SENSORS FOR COAL COMBUSTION CONTROL. Office of Scientific and Technical Information (OSTI), December 2003. http://dx.doi.org/10.2172/824014.

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Eric D. Wachsman. MULTIFUNCTIONAL (NOx/CO/O2) SOLID-STATE SENSORS FOR COAL COMBUSTION CONTROL. Office of Scientific and Technical Information (OSTI), May 2005. http://dx.doi.org/10.2172/850457.

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Eric D. Wachsman. Multifunctional (NOx/CO/O2) Solid-State Sensors For Coal Combustion Control. Office of Scientific and Technical Information (OSTI), December 2006. http://dx.doi.org/10.2172/932405.

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Eric D. Wachsman. MULTIFUNCTIONAL (NOx/CO/O2) SOLID-STATE SENSORS FOR COAL COMBUSTION CONTROL. Office of Scientific and Technical Information (OSTI), March 2005. http://dx.doi.org/10.2172/840269.

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Saethre, R., H. Kirbie, B. Hickman, B. Lee, and C. Ollis. Optical control, diagnostic and power supply system for a solid state induction modulator. Office of Scientific and Technical Information (OSTI), June 1997. http://dx.doi.org/10.2172/562329.

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Covaro, Mark. Networked Lighting Power and Control Platform for Solid State Lighting in Commercial Office Applications. Office of Scientific and Technical Information (OSTI), August 2012. http://dx.doi.org/10.2172/1054099.

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