Resonant isolating transducer with GaN transistors BY Soukup, Dominik-Rezonanční izolující měnič s GaN tranzistory -ZÁPADOČESKÁ UNIVERZITA V PLZNI FAKULTA ELEKTROTECHNICKÁ KATEDRA VÝKONOVÉ ELEKTRONIKY A STROJŮ

 

Title: Rezonanční izolující měnič s GaN tranzistory 

Other Titles: Resonant insulating converter with GaN transistors 

Authors: Soukup, Dominik

 Advisor: Jára Martin, Ing. Ph.D. Referee: Štěpánek Jan, Ing. Ph.D.

 Issue Date: 2021 

Publisher: Západočeská univerzita v Plzni

Abstrakt

Předkládaná diplomová práce se věnuje návrhu a realizaci rezonančního izolujícího měniče s GaN tranzistory. V práci je uvedeno stručné porovnání polovodičových materiálů a rezonančních měničů. Dále se práce zabývá samotným návrhem měniče, který zahrnuje výběr a dimenzování polovodičových součástek, návrh budícího obvodu, mechanický koncept a následnou realizaci. Závěrečná část práce se věnuje oživení a testování prototypového měniče.

Abstract 

The presented diploma thesis deals with the design and implementation of a resonant isolating transducer with GaN transistors. The paper presents a brief comparison of semiconductor materials and resonant converters. Furthermore, the work deals with the design of the converter, which includes the selection and dimensioning of semiconductor components, the design of the excitation circuit, the mechanical concept and subsequent implementation. The final part of the work is devoted to the recovery and testing of a prototype converter.

VIEW FULL TEXT :https://dspace5.zcu.cz/bitstream/11025/46112/1/DP.DS.pdf

Engineering PhD thesis Considering load impedance fluctuations of resonant power conversion system 4-terminal network desig by Jeong Eui-Hoon Seoul National University Graduate School Department of Electrical and Information Engineering

공학박사학위논문

부하 임피던스 변동을 고려한

공진형 전력 변환 시스템의

4 단자 네트워크 설계

서울대학교 대학원

전기∙정보공학부

정 의 훈

Engineering PhD thesis Considering load impedance fluctuations of resonant power conversion system 4-terminal network design 

 Seoul National University Graduate 

School Department of Electrical and Information Engineering

By  Jeong Eui-Hoon

ABSTRACT

Resonant power conversion systems have been widely used for high-frequency power conversion due to the advantage of low switching losses in inverter circuits. Such a system structure has been adopted in various fields such as battery charging, wireless power transmission, plasma driving system, and etc. Resonant power conversion systems operate very efficiently under one driving operation condition, but performance is easily degraded by system variations. In this dissertation, a systematic method for designing a resonant network, which is a key element of a resonant power conversion system, is proposed. The degree of design freedom of a two-port network is analyzed based on the general and mathematical model. This dissertation presents methods utilize the design freedoms to shape the input impedance trajectories to the desired way or to compress the input impedance variations to a certain value when the load impedance varies in a certain range. Based on this theoretical background, a resonant power conversion system with robust characteristics against load impedance is constructed. The proposed method is applied to design the wireless power transfer system that has a robust output characteristic against coil coupling variation. In addition, the proposed method is used to construct a high-frequency power conversion system that maintains impedance matching even with a wide range of load impedance variations. For the design examples, simulation and experimental results are presented to verify the effectiveness and the superiority of the proposed method. 

VIEW FULL TEXT: https://www.mediafire.com/file/hezak1yyth9gs72/resonant+converter.pdf/file

AUTOMATIC CONTROL Kyungpook National University PROF. Choi Byung-Jo-Lecture 24: Loop Gain Shaping and Feedback Compensation Structure

 

Modelo de cálculo de perdas por comutação e método de seleção de tecnologias de transistores FET aplicados a conversores estáticos-Edemar de Oliveira Prado-UNIVERSIDADE FEDERAL DE SANTA MARIA CENTRO DE TECNOLOGIA PROGRAMA DE PÓS-GRADUAÇÃO EM ENGENHARIA ELÉTRICA

MODELO DE CÁLCULO DE PERDAS POR COMUTAÇÃO E MÉTODO DE SELEÇÃO DE TECNOLOGIAS DE TRANSISTORES FET APLICADOS A CONVERSORES ESTÁTICOS 

Autor: Edemar de Oliveira Prado Orientador: José Renes Pinheiro 

RESUMO Esta dissertação apresenta um modelo analítico para auxiliar no cálculo de perdas por comutação e uma metodologia de seleção de MOSFETs que operam tensões de bloqueio maiores que 100 V. O modelo foi desenvolvido com base em conceitos físicos e elétricos da estrutura FET, considerando as não linearidades da capacitância Miller em função da variação de tensão, presentes principalmente em MOSFETs fabricados para operar tensões acima de 100 V. Resultados de simulação e experimentais que validam o modelo foram obtidos, considerando a faixa de frequência de 1 - 300 kHz, onde o limite de operação do gate driver foi atingido. O modelo proposto foi comparado a modelos de cálculo de perdas frequentemente utilizados na literatura, onde se observou que os demais modelos utilizados apresentaram aumento no erro relativo para frequências acima de 50 kHz. Sistemas de transferência de calor são analisados e discutidos. O modelo de cálculo de perdas proposto é utilizado no desenvolvimento de uma análise comparativa entre as tecnologias de MOSFET convencional de Silício, superjunção, SiC e GaN. O impacto das capacitâncias parasitas, temperatura de junção, resistências intrínsecas a estrutura, frequência de comutação e níveis de potência em cada tecnologia são analisados. Áreas de tendências de aplicação são definidas para cada tecnologia com base nos rendimentos em função da frequência e da potência.

VIEW FUL TEXT: https://repositorio.ufsm.br/handle/1/22430

DIRECT LINK:

https://repositorio.ufsm.br/bitstream/handle/1/22430/DIS_PPGEE_2020_PRADO_EDEMAR.pdf?sequence=1&isAllowed=y

POWER ELECTRONICS PROF. YONGSUG SUH - CHONBUCK NATIONAL UNIVERSITY - KOREA OPEN COURSEWARE- THREE- PHASE INVERTER

 

INVERTER THREE-PHASE Principles of static power conversion , switching cell structure , DC-DC converter , AC-DC converter , DC-AC converter POWER ELECTRONICS PROF. YONGSUG SUH - CHONBUCK NATIONAL UNIVERSITY - KOREA OPEN COURSEWARE-PART4 ASSISTANT PROFESSOR -UNIVERSITY OF WISCOSIN-MADISON US PHD ELECTRICAL ENGINEERING.

ORIGINAL SOURCE:http://www.kocw.net/home/cview.do?lid=fbdf9c4e1056b713

Reliability of Modern Power Electronic based Power Systems - Prof. Frede Blaabjerg Professor in Power Electronics, Villum Investigator, Aalborg University, Denmark

Power Electronics Group of TalTech This video was recorded during a seminar co-organized by the Doctoral School of Energy and Geotechnology III, TalTech, and IES/PELS/PES/IAS Joint Societies Chapter, IEEE Estonia Section. The talk was given at the Department of Electrical Power Engineering and Mechatronics, Tallinn University of Technology, Estonia, on November 30, 2021.

POWER ELECTRONICS PROF. YONGSUG SUH - CHONBUCK NATIONAL UNIVERSITY - KOREA OPEN COURSEWARE-PART4-INDUCTOR and Capacitor Response Inductor and Capacitor Response Ideal Switch and Switching Function

Inductor and Capacitor Response Inductor and Capacitor Response Ideal Switch and Switching Function Principles of static power conversion , switching cell structure , DC-DC converter , AC-DC converter , DC-AC converter POWER ELECTRONICS PROF. YONGSUG SUH - CHONBUCK NATIONAL UNIVERSITY - KOREA OPEN COURSEWARE-PART4

ASSISTANT PROFESSOR -UNIVERSITY OF WISCOSIN-MADISON US PHD ELECTRICAL ENGINEERING.

CONCEPCIÓN E INTEGRACIÓN EN MICRORREDES RESIDENCIALES DE INVERSORES MULTINIVEL SIN TRANSFORMADOR DE AISLAMIENTO CON EXTRACCIÓN SIMULTÁNEA DE LA MÁXIMA POTENCIA DE MÚLTIPLES GENERADORES FOTOVOLTAICOS Patrao Herrero, Iván Materia Ingeniería Electrónica y Comunicaciones-UNIVERSIDAD POLITECNICA DE VALENCIA

 CONCEPCIÓN E INTEGRACIÓN EN MICRORREDES RESIDENCIALES DE INVERSORES MULTINIVEL SIN TRANSFORMADOR DE AISLAMIENTO CON EXTRACCIÓN SIMULTÁNEA DE LA MÁXIMA POTENCIA DE MÚLTIPLES GENERADORES FOTOVOLTAICOS POR Patrao Herrero, Iván -Materia Ingeniería Electrónica y Comunicaciones 

TESIS DOCTORAL-UNIVERSIDAD POLITECNICA DE VALENCIA-UPV 

Resumen

 Los inversores multinivel se utilizan de forma habitual en aplicaciones de gran potencia, pero la aplicación de las topologías multinivel en la generación fotovoltaica de pequeña potencia presenta algunas ventajas de interés. Se propone una topología de inversor fotovoltaico monofásico de inyección a red sin transformador, basada en las topologías multinivel, llamada NPC+GCC. Esta topología presenta características de gran interés para su uso como inversor sin transformador directamente conectado a la red eléctrica. Se estudia su tensión de modo común, y cómo esta genera una corriente de derivación capacitiva que se mantiene muy por debajo de los límites permitidos por la normativa. La topología NPC+GCC permite la conexión de dos generadores fotovoltaicos en su entrada, sobre los que efectuará una búsqueda del punto de máxima potencia de manera totalmente independiente y con un elevado rendimiento y fiabilidad, ya que no utiliza convertidores conectados en cascada para realizar esta función.

 VIEW FULL TEXT: https://riunet.upv.es/bitstream/handle/10251/52023/Patrao%20-%20Concepci%c3%b3n%20e%20integraci%c3%b3n%20en%20microrredes%20residenciales%20de%20inversores%20multinivel%20sin%20trans....pdf?sequence=10&isAllowed=y%22