Dissertations / Theses on the topic 'Mutual inductance'
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Bae, Han-Kyung. "Control of Switched Reluctance Motors Considering Mutual Inductance." Diss., Virginia Tech, 2000. http://hdl.handle.net/10919/28593.
Full textPh. D.
Mueller, David W. "High-speed, high-accuracy method for mutual inductance calculations." Diss., Columbia, Mo. : University of Missouri-Columbia, 2008. http://hdl.handle.net/10355/5637.
Full textThe entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on August 13, 2009) Includes bibliographical references.
Rohe, Stacy. "Investigation of the accuracy of Grover's method when solving for the mutual inductance of two single-layer coaxial coils." Diss., Columbia, Mo. : University of Missouri-Columbia, 2005. http://hdl.handle.net/10355/4266.
Full textThe entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file viewed on (December 19, 2006) Includes bibliographical references.
McFerran, Jennifer. "An Electromagnetic Method for Cancer Detection." The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1253558341.
Full textZiegler, Silvio. "New current sensing solutions for low-cost high-power-density digitally controlled power converters." University of Western Australia. School of Electrical, Electronic and Computer Engineering, 2009. http://theses.library.uwa.edu.au/adt-WU2010.0077.
Full textBoff, Ben Hur Bandeira. "Influência do efeito de extremidade de atuadores eletromagnéticos lineares nas indutâncias." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2018. http://hdl.handle.net/10183/179537.
Full textThis work demonstrates that the end effect in linear electromagnetic actuators can have a significant influence on the self-, mutual and synchronous inductances, with positiondependent values that can be used to measure the axial position of the armature. The study is applied to a linear synchronous electromagnetic actuator with two arrangements of quasi- Halbach permanent magnets and moving coil, which was designed for use in active and semiactive electromagnetic suspension systems. Based on the literature review presented, the end effect of permanent magnet synchronous linear machines was classified with regard to: types, causes, consequences and mitigation techniques (if necessary). In addition, the types of sensorless control methods are exemplified in order to identify a possible method to be applied to the actuator under study. It was found in the literature that sensorless control was applied to machines that have inductances with similar behavior. In terms of analysis, the distribution of the magnetic flux in the actuator is studied and a semi-analytical model was developed to calculate the value of the inductances based on the data of magnetic flux obtained through numerical simulation. Thus, the complete parametrized numerical models of the actuator were built for transient and magnetostatic simulation, and from these the inductances were obtained. The inductances are also measured experimentally, and in the analysis of the results the measurement uncertainties are calculated and a design of experiments is presented. The results of the semi-analytical and numerical models show good agreement with the experimental results. Finally, the suitability of the actuator for future application of sensorless control is discussed based on the variation of inductances due to the end effect.
Davis, Aaron Charles, and aaron davis@rmit edu au. "Quantitative Characterisation of Airborne Electromagnetic Systems." RMIT University. Applied Physics, 2007. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20080723.103030.
Full textOrrevad, Gustav. "Ömsesidig koppling mellan parallellgående friledningar." Thesis, KTH, Data- och elektroteknik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-172932.
Full textParallel overhead power lines induce voltage in one another, which in turn drives a current. In this report an investigation is made in how asymmetrical short circuits on an overhead power line influence the cur-rent in a parallel overhead power lines due to the inductive coupling be-tween the power lines and which hazards it can cause for the electrical delivery dependability as well as high voltage workers.The aim with this bachelor thesis is to increase the accuracy in fault cur-rent calculation in the Vattenfall electricity grid as well as to increase the knowledge within Vattenfall of the phenomena of inductive coupling and the hazards which comes with it.The report could ascertain that inductive coupling can lead to danger for electrical delivery dependability and that there exists a need of analysis on specific parallel overhead power lines within the Vattenfall electricity grid.
Ermanas, Žilvinas. "Bevielio energijos perdavimo tyrimas." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2013. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2013~D_20130618_154800-15129.
Full textToday can not imagine our life without many electricity using devices are connected to a source of electrical power lines. Numerous trailing wires really does not make our lives easier and more comfortable. Even more complicated situations when there are no opportunities to use wire and to connect to a power source. All these inconveniences are promoting to search the solution wich could be the transfer of energy without wires. Wireless energy idea has been raised for more than a hundred years ago. The thought was inventor inventored by Nikola Tesla. Analyzing this work there was made a demonstration model of wireless power transmission. In this model there is analyzing such things as wireless transmission system, working principal, transmitted energy distance and obtained losses.
Anand, Vivek. "Modelling and Control of a Dual Sided Linear Induction Motor for a scaled Hyperloop Pod." Thesis, KTH, Fordonsdynamik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-285801.
Full textElektrifieringstiden har präglats av en ökning i volym av elfordon som direkt eller indirekt drivs med el. Järnvägar, vägar och luftvägar elektrifieras just nu med deras respektive takt. Utöver det kommer kommande koncept för transportlösning som hyperloop som också beskrivs som det femte transportsättet att elektrifieras. Detta examensarbete bygger på att utveckla modellen och regleringen av framdrivningssystemet för en nedskalad Hyperloop-pod utvecklad av studentteamet KTH Hyperloop som representerar KTH. Teamet tävlar i Hyperloop-tävlingen organiserad av SpaceX och målet är att uppnå högsta möjliga hastighet på ett visst avstånd och spår framtaget av SpaceX. För att uppnå målet om att vara snabbast använder den nedskalade podden en dubbelsidig elektrisk linjär induktionsmotor (DSLIM) som nämns i det följande kapitlet. Den elektriska motormodelleringen görs i Simulink och liknar en roterande induktionsmotor(RIM). Men närvaron av ’end effect’ i DSLIM gör den annorlunda än RIM och har diskuterats därefter. Styrstrategin använder en synkron ram-PI-styrning för strömstyrning och sensorbaserad hastighetsreglering för att styra hastigheten på podden. Varvtalsstyrningsutgången är en referensström som används som en ingång till den nuvarande styrenheten som slutligen ger spänning som slutling styrning. Motsvarande bandbredd för de olika slingorna har beräknats baserat på elektriska motorparametrar som diskuterats i metodavsnittet.Valideringen av elmotormodellen och motsvarande styrenhet har diskuterats i resultatsektionen, där noggrannheten hos styrenheten för den konstruerade modellerna diskuteras.
Kallel, Bilel. "Design of Inductive Power Transmission System for Low Power Application with Movable Receiver and Large Air Gap." Universitätsverlag Chemnitz, 2018. https://monarch.qucosa.de/id/qucosa%3A32975.
Full textDie induktive Energieübertragung ist interessant, nicht nur für Systeme, bei denen die Energieübertragung in rauen, feuchten und nassen Bereichen erfolgen soll, sondern auch für mobile und sehr kleine Systeme. Diese Art von Energieübertragung findet heute eine breite Anwendung in verschiedenen Bereichen, wie z.B. Industrie, Automobil, Medizin und intelligente Gebäude. Um eine gute Effizienz und eine hohe Energieübertragungsleistung zu realisieren, sollten die Sende- und Empfangsspulen perfekt ausgerichtet und nahe beieinander sein. Insbesondere bei Systemen mit beweglichen Teilen ist jedoch eine Fehlausrichtung zwischen Sender und Empfänger unvermeidlich. Diese Arbeit zielt darauf ab, die übertragene Leistung, die gegenseitige Induktivität, die Leistung an der Last und damit den Wirkungsgrad der Leistungsübertragung im Falle einer seitlichen Fehlausrichtung zwischen Sende- und Empfangsspule und bei großem Abstand von Spule zu Spule zu verbessern. Zu diesem Zweck wird ein Multi-Input Single-Output (MISO)-Spulensystem vorgeschlagen, das in der Lage ist, das ausgegebene Magnetfeld auf die Empfangsspule auszurichten, indem die benachbarten Spulen der aktiven Sendespulen mit einem schwachen Strom in der entgegengesetzten Richtung versorgt wird. Darüber hinaus wurde ein analytisches Modell für die verwendeten Spulen und ein genaues dreidimensionales Modell für das System entwickelt, um die induzierte Spannung, den induzierten Strom und die äquivalente gegenseitige Induktivität zu berechnen. Sowohl die Simulation als auch die experimentellen Ergebnisse belegen, dass das vorgeschlagene induktive Mehrfachspulensystem mit hexagonaler Anordnung und die Sendespulen, die den halben Durchmesser der Empfangsspule haben, in der Lage sind, die Sendeleistung bei lateraler Fehlausrichtung und großem Luftspalt deutlich zu verbessern. Das neuartige MISO-System erreicht einen besseren Wirkungsgrad, beginnend mit einem Luftspalt von 50% des Sendespulendurchmessers und einer Fehlausrichtung von 28% des Sendespulendurchmessers. Sie erreicht bei 50 mm Luftspalt (entspricht 166% des Sendespulendurchmessers) und bei 10 mm seitlichem Versatz (entspricht 33% des Sendespulendurchmessers) das Doppelte der Sendeleistung des herkömmlichen Zwei-Spulen-Induktivsystems. Um die äquivalente gegenseitige Induktivität zwischen Primär- und Sekundärseite zu verbessern und Energieverluste zu vermeiden, schlagen wir ein Verfahren zur Detektion des Empfängers vor, bei dem die Sendespulen selbst als Detektoren verwendet werden. Dabei werden nur die Sendespulen unter dem Empfänger aktiviert und die anderen bleiben ausgeschaltet. Dazu wird der Scheitelwert des Wechselstroms der Sendespulen gemessen und mit einem vorgegebenem Schwellenwert verglichen. Die Anregungsstrategie der aktiven Spulen wird entsprechend der Position der Empfangsspule optimiert. Die neuartige Anregungsstrategie erhöht die gegenseitige Induktivität um 85% und die induzierte Spannung um 13% bei perfekter Ausrichtung und um 30% bzw. 10% bei 10 mm seitlichem Versatz, im Vergleich zum MISO-System ohne Empfängerdetektor und Spulenanregungsstrategie. Um die übertragene Leistung durch Resonanz zu erhöhen, wurden verschiedene Systemtopologien untersucht, wie z.B. Serien-SS, Serien-Parallel-SP, Parallel-Series-PS und Parallel-Parallel-PP-Topologien für verschiedene Stufen der Lastimpedanz. Die Ergebnisse zeigen, dass ein MISO System mit parallel-paralleler PP-Topologie eine höhere Sendeleistung realisiert als die anderen Topologien für hohe und niedrige Last-Impedanzen. Das vorgeschlagene induktive Mehrspulensystem eignet sich für Systeme mit geringer Leistung, wie drahtlose Sensoren und biomedizinische Implantate, kann aber auch flexibler Position des Empfängers in einen höheren Leistungsbereich angewendet werden.
Tzu-Pin, Yu, and 余子賓. "Phase Synchronization by Mutual Inductance." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/19469854227964144416.
Full text國立高雄師範大學
物理學系
101
In this thesis, we experimentally observing the behavior of phase synchronization between two chaotic Chua's circuits by mutual inductance of the inductors. We change the distances of the two inductances to defined the coupling strength. To analyze the degree of phase synchronization, Two methods, recursive probability ,and correlation probability recurrence(CPR), are used to quantify the strength of phase synchronization. It is found that the strength of phase synchronization would be increased as the coupling strength are increasing till resonance occure . However ,the strength of phase synchronization is decreased when the coupling strength is continuously increasing. Finally, we discuss the behavior of phase synchronization when a periodic signal is input into one of the two Chua's circuits, and found that the increasing voltage of driven signal would not increase the strength of phase synchronization of the mutual coupling system.
LIN, SHIH-WEI, and 林士偉. "Mutual Inductance of Dual-coil Microstructure for Fingerprint Chip Application." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/yrhwjg.
Full text逢甲大學
自動控制工程學系
106
Biometrics has usually referred to technologies for measuring and analyzing human body characteristics. For this, we present a coupled dual-coil for fingerprint sensor application. The performance of dual-coil has evaluated by COMSOL Software and a typical fabrication of the MEMS system has carried out for demonstration. There is an obvious difference for the distribution of electric potential energy between the cases with air and finger, when a voltage of 1 V applied on the excitation coil. The coupled capacitance as a function of the relative permittivity indicates that the coupled capacitance increases with the increase in the relative permittivity of finger. On the other hand, there is no obvious difference for the distribution of magnetic flux between the cases with air and finger, when the input current of the excitation coil was 1 A. However, those results evidence that the electrical output signal of the sensing coil was dominated by the coupled capacitance and mutual inductance. Thus, the sensing conditions with and without the ridge of finger can be recognized by the proposed approach. To identify the sensing performance, a sine wave signal with a voltage of 5 Vp-p was applied on the excitation coil. The typical measurement results for single dual-coil element with the mediums of saline solution is clear that a phase shift (Ø), when operating at the resonant frequency of 7.5 MHz. Thus, the fingerprint topology can be recognized precisely, by the phase shift between the excitation and sensing coils.
Mo, Yung-Ning, and 莫永寧. "Measurement Analysis and Verification of Self Inductance and Mutual Inductance for A FourPhase 8/6 Pole Switched Reluctance Motor." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/76209184439995501498.
Full text國立中興大學
電機工程學系所
103
This paper studies the mechanical structure and the mathematical model of a four phases 8/6 pole switched reluctance motor (SRM). The motor drive is designed by using the sequential single-phase excitation control logic. The main emphasis is on study of the self inductances and mutual inductances of the four-phase SRM, to find the magnetic coupling relationship among the different phases. Experiment data are taken to derivate the values of the self inductances and mutual inductances as functions of rotor positions.
Jian, Hau-Shian, and 簡皓仙. "Design of A Wireless Vehicle Charging System Adapted to Mutual Inductance Variation." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/53724080635921887185.
Full text國立中興大學
電機工程學系所
105
In the past ten years, scholars from all over the world have developed results and related applications in the research and application of wireless charging, applications of wireless charging in the electric vehicles plays an important role in industrial and commercial development. In the electric vehicle charging technology, a major research trend is to adopt loosely coupled inductive power transfer in the electric vehicles. There are two novel techniques in wireless power transfer region, bidirectional wireless power transfer and bidirectional data transmission. The capability of bidirectional wireless power transfer allows vehicles to be charged and provide charge to other systems; the capability of bidirectional data transmission allows WPT system charging without any additional communication device. Both of them are sensitive to precisely coil align. Due to misalignment between the transmission coil and the receiver coil, the output power might result in a drop. This misalignment problem will seriously affect the power transmission efficiency, communication quality. This thesis analyzes and designs the coil misalignment problem and using fuzzy rule to solved coil misalignment problem under the system combining bidirectional wireless power transfer with the bidirectional data transmission. The system operates the switch frequency around 85 KHz, as recommended by SAE TIR 2954
Chiu, Chen-Hsuan, and 邱震軒. "Crosstalk-Driven Placement with Considering On-Chip Mutual Inductance and RLC Noise." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/q82ch7.
Full text國立交通大學
電信工程系所
94
As the deep-submicron technologies scale down to 0.18 µm, the crosstalk noise has become a critical issue which designer cannot neglect. In the thesis, a novel crosstalk-driven placement algorithm for on-chip mutual inductance and RLC noise consideration will be proposed. We also demonstrate that only take account of the RC noise during placement will be excessively optimistic in the noise effects produced by designed circuits. Results show that our approach can reduce 44.1% probabilistic RLC noise and improve 30.1% total estimated wirelength on average than the area-driven placement only at the cost of 8.4% increase of total area. For the congestion-driven and RC-driven placement, our algorithm also achieves 15.9% and 8.9% improvement on average in probabilistic RLC noise, and averagely minimizes 14.9% as well as 6.8% total estimated wirelength, respectively.
"Modeling and Control of a Three Phase Voltage Source Inverter with an LCL Filter." Master's thesis, 2015. http://hdl.handle.net/2286/R.I.29981.
Full textDissertation/Thesis
Masters Thesis Electrical Engineering 2015
Trezise, Tyler. "Modelling inductively coupled coils for wireless implantable bio-sensors: a novel approach using the finite element method." Thesis, 2011. http://hdl.handle.net/1828/3502.
Full textGraduate