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Dissertations / Theses on the topic 'Fault tolerant inverter'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Diao, El Hadji Sidath. "Fault Tolerant Control for Critical machine-inverter systems used in automotive industry." Thesis, Paris 11, 2014. http://www.theses.fr/2014PA112311/document.

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La disponibilité de certains capteurs est indispensable pour le contrôle des machines électriques dans une application automobile. Cette thèse constitue une contribution à l'étude d'une commande tolérante aux défauts pour un entraînement électrique dans le cadre du projet SOFRACI. Pour pallier une défaillance de ces capteurs, des stratégies sont mises en place pour assurer une continuité de fonctionnement ou un arrêt sûr. Dans le cas de la machine synchrone, les capteurs les plus critiques sont: le capteur de position, les capteurs de courant et le capteur de bus de tension continue. C'est dan

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2

Arafat, AKM. "ANALYSIS AND CONTROL OF FIVE-PHASE PERMANENT MAGNET ASSISTED SYNCHRONOUS RELUCTANCE MOTOR DRIVE UNDER FAULTS." University of Akron / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=akron1524168102423576.

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3

Correa, Vasquez Pablo Ignacio. "Fault tolerant operation of series connected H-bridge multilevel inverters." [S.l.] : [s.n.], 2006. http://deposit.ddb.de/cgi-bin/dokserv?idn=983830509.

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4

Maamouri, Rebah. "Diagnostic et commande tolérante aux défauts appliqués à un système de conversion électromécanique à base d’une machine asynchrone triphasée." Thesis, Ecole centrale de Marseille, 2017. http://www.theses.fr/2017ECDM0009/document.

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L’objectif de cette thèse est de proposer des stratégies de diagnostic dans le cas d'une commande en vitesse sans capteur mécanique (vitesse/position) d’une machine asynchrone triphasée en présence de défaut d'ouverture des transistors IGBT (Insulated Gate Bipolar Transistor) de l’onduleur. Une étude de l’impact de ces défauts sur les performances de ces structures sans capteur mécanique en termes de stabilité et de robustesse des observateurs en mode dégradé est présentée. Un observateur par mode glissant (Sliding Mode Observer) à base de modèle est développé et validé expérimentalement en vu

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5

Lamb, Jacob. "Corrective schemes for internal and external abnormalities in cascaded multilevel inverters." Diss., Kansas State University, 2017. http://hdl.handle.net/2097/35803.

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Doctor of Philosophy<br>Department of Electrical and Computer Engineering<br>Behrooz Mirafzal<br>Corrective schemes for facilitating continued operation of dc-ac converters during internal and external abnormalities are presented in this dissertation. While some of the developed techniques are suited for any dc-ac converter topology, most of the presented methodologies are designed specifically for cascaded H-bridge (CHB) multilevel converters. While CHB provide increased scalability and efficiency compared to traditional topologies, these converters are more likely to experience internal faul

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6

Weiss, Claude Pascal [Verfasser], Doncker Rik W. [Akademischer Betreuer] De, and Wilfried [Akademischer Betreuer] Hofmann. "Fault tolerant switched reluctance machines with distributed inverters : modeling and control / Claude Pascal Weiss ; Rik W. de Doncker, Wilfried Hofmann." Aachen : Universitätsbibliothek der RWTH Aachen, 2020. http://d-nb.info/1231191996/34.

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7

Aboelhassan, Mustafa Osman Elrayah. "Robustní řízení synchronního stroje s permanentními magnety a spínaným tokem." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-233605.

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Je jasné, že nejúspěšnější konstrukce zahrnuje postup vícefázového řízení, ve kterém každá fáze může být považována za samostatný modul. Provoz kterékoliv z jednotek musí mít minimální vliv na ostatní, a to tak, že v případě selhání jedné jednotky ostatní mohou být v provozu neovlivněny. Modulární řešení vyžaduje minimální elektrické, magnetické a tepelné ovlivnění mezi fázemi řízení (měniče). Synchronní stroje s pulzním tokem a permanentními magnety se jeví jako atraktivní typ stroje, jejíž přednostmi jsou vysoký kroutící moment, jednoduchá a robustní konstrukce rotoru a skutečnost, že perman

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8

Al, Asmar Abed Al Kader. "Commande tolérante aux défauts statoriques et de convertisseurs d'un entraînement synchrone à aimants pour l'aéronautique." Thesis, Normandie, 2021. http://www.theses.fr/2021NORMLH03.

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Il s'agit d'étudier une structure originale d'entrainement électromécanique à base de machine synchrone à aimants permanents à double stator et un rotor en cloche tolérante aux défauts. Cette structure peu répandue a la capacité de tolérer les défauts de court-circuit et de circuit-ouvert de l'onduleur ainsi que les défauts de court-circuit des bobinages. Une structure originale des bobinages permettrait de limiter les conséquences de ces défauts et de permettre d'assurer la disponibilité de l'actionnement malgré la défaillance. Un modèle multiphysique innovant basé sur un couplage électro-mag

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9

XU, FU-QIANG, and 許富強. "Smart Fault-Tolerant Control and Locating Faults in a Three-Level T-Type Inverter." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/8bzf4e.

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碩士<br>國立勤益科技大學<br>電機工程系<br>107<br>This thesis proposes a smart fault-tolerant control system based on chaos theory and extension theory for locating faults and executing tolerant control in a three-level T-type inverter. First, the system constantly monitors the fault states of the 12 power transistor switches of the three-level T-type inverter; if a power transistor fails, the corresponding output phase voltage waveform is converted by a Lorenz chaotic synchronization system. Chaos eye coordinates are then extracted from a scatter diagram of chaotic dynamic states and considered as fault char

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10

Li, Bing-Feng, and 李柄鋒. "Tolerant Control of Open-Circuit Fault for Three-Level T-type Inverter." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/09610942677366275414.

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碩士<br>國立中山大學<br>電機工程學系研究所<br>104<br>As there are more applications of T-type inverter, the concern of the inverter reliability has been increasing. This thesis investigates the operation modes of three-level T-type inverter circuit, proposed a new method to detect fault phase .The proposed method can locate fault switch by detecting the average value of phase current and the situation of unbalance voltage of capacitors. Carrier-based pulse width modulation is applying to achieve the tolerance control, and making the modulation scheme more easier to implement. A neutral-point voltage balance co

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11

Tsai, I.-Chiao, and 蔡依樵. "Cascaded Multilevel Inverter for Photovoltaic System and Fault Diagnosis and Tolerant Strategy." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/73807892166452525610.

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碩士<br>國立高雄應用科技大學<br>電機工程系<br>98<br>This thesis studies the structure and principle of Cascaded H-bridge Multilevel Inverter and Photovoltaic System. The MATLAB is used to build the model of power circuit of the Inverter for PV System. In addition, the harmonic characteristics of the multilevel inverter output voltage are studied when the power elements short-circuit. According to the analysis, a fault detection and diagnosis module is proposed for identify the faulty cell. Following the fault diagnosis and bypass the faulty cell, a fault tolerance strategy is used to maintain the inverter in c

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12

Beard, Mary Jean. "Design and simulation of fault-tolerant Quantum-dot Cellular Automata (QCA) NOT gates." Thesis, 2006. http://hdl.handle.net/10057/561.

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This paper details the design and simulation of a fault-tolerant Quantum-dot Cellular Automata (QCA) NOT gate. A version of the standard NOT gate can be constructed to take advantage to the ability to easily integrate redundant structures into a QCA design. The fault-tolerant characteristics of this inverter are analyzed with QCADesigner v2.0.3 (Windows version) simulation software. These characteristics are then compared with the characteristics of two other non-redundant styles of NOT gates. The redundant version of the gate is more robust than the standard style for the inverter. However, a

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13

Estima, Jorge Oliveira. "Development and analysis of permanent magnet synchronous motor drives with fully integrated inverter fault-tolerant capabilities." Doctoral thesis, 2012. http://hdl.handle.net/10316/21407.

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14

Sajadian, Sally. "Energy conversion unit with optimized waveform generation." Thesis, 2014. http://hdl.handle.net/1805/6109.

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Indiana University-Purdue University Indianapolis (IUPUI)<br>The substantial increase demand for electrical energy requires high efficient apparatus dealing with energy conversion. Several technologies have been suggested to implement power supplies with higher efficiency, such as multilevel and interleaved converters. This thesis proposes an energy conversion unit with an optimized number of output voltage levels per number of switches nL=nS. The proposed five-level four-switch per phase converter has nL=nS=5/4 which is by far the best relationship among the converters presented in technical

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15

Liang, Shih-Yan, and 梁世諺. "Multilevel Inverter with Battery-Balancing and Fault Tolerance Function." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/35872866410962807026.

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碩士<br>國立彰化師範大學<br>電機工程學系<br>104<br>This paper proposes a multilevel inverter with battery-balancing and fault tolerance function, which is mainly constructed by a series multilevel converter , a redundancy circuit and a inverter circuit. By the proposed system, not only battery balancing function but also battery redundant function are achieved. Finally, a 160W prototype is designed and realized to verify the feasibility and performance. From experiment at results, the proposed battery balancing method provides the longer operation time then battery balancing method for 6187 seconds. Verifing

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16

Hung, Chien-Chun, and 洪健竣. "Fault Diagnosis and Tolerant Control for Three-Level T-Type Inverters." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/yk5nj9.

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碩士<br>國立勤益科技大學<br>電機工程系<br>105<br>This thesis proposes a fault diagnosis system for three-level T-type inverters. First, the PSIM software was used to create a three-level T-type inverter circuit and simulate the output voltage waveforms of faulty power transistors on the main inverter circuit under different output frequencies. The simulated waveforms were processed using a fast Fourier transform (FFT) algorithm to create frequency spectrum diagrams and extract the characteristic spectra of corresponding faulty switches. Then, the associations of the spectra were determined and applied as tra

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17

Hsieh, Hui-Min, and 謝惠民. "Parallel Inverter System with Fault Tolerance and Hot-Swap Features." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/49391535685755989922.

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博士<br>國立中正大學<br>電機工程所<br>96<br>The objective of this dissertation is to design and implement a parallel-inverter system with fault tolerance and hot-swap features. The inverters connected in parallel are allowed to have different power ratings and can achieve weighting-current distribution. The system is controlled with a system control unit (SCU) to achieve output voltage regulation, inverter syn-chronization and the above mentioned features. By incorporating a cur-rent-weighting-distribution control, the system allows inverters with identical or different power ratings. The fault tolerance f

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18

Ke, Chen-Hou, and 柯宸厚. "Fault Diagnosis and Tolerant Control of Three-Level Neutral Point Clamped Inverters." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/jsj7e2.

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碩士<br>國立勤益科技大學<br>電機工程系<br>105<br>This thesis presents an extension theory-based assessing method to apply fault diagnosis for inverters in motor driving systems. First, a three-level neutral point clamped (NPC) inverter was created using the PSIM software to simulate faults occurring on any power transistor in the NPC-type inverter. Also, Fast Fourier Transform was used to transform line current signals in time domain into spectrum in frequency domain for analysis of the corresponding spectrum of feature of the inverter in case of faults of different power transistors. Then, the relationship

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19

Correa, Vasquez Pablo Ignacio [Verfasser]. "Fault tolerant operation of series connected H-bridge multilevel inverters / von Pablo Ignacio Correa Vasquez." 2006. http://d-nb.info/983830509/34.

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20

Correa, Vasquez Pablo [Verfasser]. "Fault tolerant operation of series connected H-bridge multilevel inverters / von Pablo Ignacio Correa Vasquez." 2006. http://d-nb.info/983830509/34.

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