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Dissertations / Theses on the topic 'Vector control'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Maître, Apolline. "Modulating the vector microbiota for the control of vector-borne pathogens." Electronic Thesis or Diss., Maisons-Alfort, École nationale vétérinaire d'Alfort, 2024. http://www.theses.fr/2024ENVA0005.

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Le cheptel corse, composé d'ovins, de caprins, de porcins et de bovins, est principalement élevé dans des systèmes d'élevage extensifs. Les interactions fréquentes entre le bétail, la faune sauvage et les populations humaines favorisent donc la circulation des tiques et des micro-organismes transmis par les tiques. Une forte prévalence de bactéries transmises par les tiques des familles Rickettsiaceae et Anaplasmataceae a été signalée chez les chèvres (Anaplasma ovis), les moutons (A. ovis), les bovins (Anaplasma marginale, Anaplasma phagocytophilum et Ehrlichia minasensis) et les tiques (Rick

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2

Payn, Martin. "Flux vector control of asynchronous machines." Thesis, University of Surrey, 1991. http://epubs.surrey.ac.uk/844608/.

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The present work introduces the dynamic induction machine model using the concept of space vector notation, and shows the fundamentals of torque production to be related to the current and flux space vector interaction. By theoretical analysis the transient response of the current and voltage fed machine is determined in terms of the machine eigenvalues, and this is confirmed using simulation techniques. The concept of torque control using the current and flux space vectors' magnitude and phase is introduced. It is shown that maintaining the flux space vector's magnitude constant is a sensible

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3

Erdem, Erinc. "Thrust Vector Control By Secondary Injection." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/12607560/index.pdf.

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A parametric study on Secondary Injection Thrust Vector Control (SITVC) has been accomplished numerically with the help of a commercial Computational Fluid Dynamics (CFD) code called FLUENT&reg<br>. This study consists of two parts<br>the first part includes the simulation of three dimensional flowfield inside a test case nozzle for the selection of parameters associated with both computational grid and the CFD solver such as mesh size, turbulence model accompanied with two different wall treatment approaches, and solver type. This part revealed that simulation of internal flowfield by a segre

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4

Orr, Jeb S. "High efficiency thrust vector control allocation." Thesis, The University of Alabama in Huntsville, 2013. http://pqdtopen.proquest.com/#viewpdf?dispub=3561548.

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<p> The design of control mixing algorithms for launch vehicles with multiple vectoring engines yields competing objectives for which no straightforward solution approach exists. The designer seeks to optimally allocate the effector degrees of freedom such that maneuvering capability is maximized subject to constraints on available control authority. In the present application, such algorithms are generally restricted to linear transformations so as to minimize adverse control-structure interaction and maintain compatibility with industry-standard methods for control gain design and stability

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5

Zhang, Zaining. "Sensorless vector control for induction motors." Thesis, University of Sussex, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.340849.

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6

Wade, Scott. "Parameter identification for vector controlled induction machines." Thesis, Heriot-Watt University, 1995. http://hdl.handle.net/10399/1311.

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7

Ozcelik, Eray. "Speed Sensorless Vector Control Of Induction Machine." Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/2/12606063/index.pdf.

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Focus of this work is closed-loop speed control of an induction machine based on direct field-oriented control (DFOC) algorithm, using estimates of speed and flux observers which utilize only stator current and voltage. Theoretical bases of the algorithms are explained in detail and their performances are investigated with simulations and experiments. Field Orientated Control is based on projections which transform a threephase time and speed dependent system into a two co-ordinate time invariant system. These projections lead to a structure similar to that of a DC machine control. Transformat

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8

Wilson, Anne Louise. "Integrated vector management : generation and use of evidence for more effective vector control." Thesis, Durham University, 2017. http://etheses.dur.ac.uk/12091/.

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Vector-borne diseases (VBD) such as malaria, dengue and leishmaniasis have a major public health impact primarily in low and middle income countries in the tropics. Vector control methods including long-lasting insecticidal nets and indoor residual spraying contribute substantially to control of VBDs, particularly malaria. However, progress is being hampered by a number of factors including a lack of human, infrastructural and financial resources, and is threatened by the development of insecticide resistance. The World Health Organization (WHO) strongly advocates the use of Integrated Vector

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9

Acheson, Emily. "Predicting Disease Vector Distributions Through Space and Time Using Environmental and Vector Control Data." Thesis, Université d'Ottawa / University of Ottawa, 2015. http://hdl.handle.net/10393/32797.

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Within this thesis, I performed a systematic review of approaches to broad-scale modelling of disease vector distributions and determined the most widely used methods predict current species niches and project the models forward under future climate scenarios without temporal validation. I then provided a forward-looking summary of emerging techniques to improve the reliability and transferability of those models, including historical calibration. I then predicted Anopheles mosquito distributions across Tanzania in 2001 (before large-scale ITN distributions) and compared this model with count

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10

張華 and Hua Zhang. "Digital vector control of forced-commutated cycloconverter drives." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1994. http://hub.hku.hk/bib/B31234574.

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11

Celanovic, Nikola. "Space Vector Modulation and Control of Multilevel Converters." Diss., Virginia Tech, 2000. http://hdl.handle.net/10919/29164.

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This dissertation is the result of research and development of a power conditioning system for Superconductive Magnetic Energy Storage System. The dominant challenge of this research was to develop the power conditioning system that can match slowly varying dc voltage and dc current on the super conductive magnet side with the ac voltages and ac currents on the utility side. At the same time the power conditioning system was required to provide a bi-directional power flow to the superconductive magnet. The focus of this dissertation is a three-level diode clamped dc-ac converter which is a

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12

Ashley, Patrick A. "Control power requirements for the velocity vector roll." Thesis, This resource online, 1994. http://scholar.lib.vt.edu/theses/available/etd-12162009-020318/.

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13

Aleti, Kalyan Reddy. "E-quality control a support vector machines approach /." To access this resource online via ProQuest Dissertations and Theses @ UTEP, 2008. http://0-proquest.umi.com.lib.utep.edu/login?COPT=REJTPTU0YmImSU5UPTAmVkVSPTI=&clientId=2515.

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14

Zhang, Hua. "Digital vector control of forced-commutated cycloconverter drives /." [Hong Kong] : University of Hong Kong, 1994. http://sunzi.lib.hku.hk/hkuto/record.jsp?B1594847X.

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15

Healey, Russell Cameron. "Advanced induction motor models for vector controllers." Thesis, University of Cambridge, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.337900.

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16

Blasco, Giménez Ramón. "High performance sensorless vector control of induction motor drives." Thesis, University of Nottingham, 1995. http://eprints.nottingham.ac.uk/13038/.

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The aim of this research project was to develop a vector controlled induction motor drive operating without a speed or position sensor but having a dynamic performance comparable to a sensored vector drive. The methodology was to detect the motor speed from the machine rotor slot harmonics using digital signal processing and to use this signal to tune a speed estimator and thus reduce or eliminate the estimator’s sensitivity to parameter variations. Derivation of a speed signal from the rotor slot harmonics using a Discrete Fourier Transform-based algorithm has yielded highly accurate and robu

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17

Arruda, Mauro P. "Fluidic vector control of self-sustained oscillatory cavity jets." Thesis, Cranfield University, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.413396.

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18

Emerson, Paul Michael. "Ecology and control of the trachoma vector Musca sorbens." Thesis, Durham University, 2001. http://etheses.dur.ac.uk/3995/.

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The work described in this thesis was conducted In rural Gambia and builds a body of evidence Incriminating the fly Musca sorbens as a vector of the blinding disease, trachoma, which is caused by ocular infection with Chlamydia trachomatis. Literature on hygiene promotion, environmental change and flies and trachoma is reviewed in the context of the SAFE strategy for trachoma control advocated by the World Health Organization M. sorbens was present throughout the year in trachoma endemic communities; was responsible for the majority of fly-eye contacts; C. trachomatis DNA was found on it; and

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19

Sokola, Matija. "Vector control of induction machines using improved machine models." Thesis, Liverpool John Moores University, 1998. http://researchonline.ljmu.ac.uk/4899/.

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20

Mbare, O. O. "Novel insecticides and application strategies for malaria vector control." Thesis, London School of Hygiene and Tropical Medicine (University of London), 2015. http://researchonline.lshtm.ac.uk/2374462/.

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Targeting malaria vector mosquitoes outdoors has become a research priority to address residual malaria transmission. Mosquito larval source management provides an excellent and well established tool. However, there is a need to reduce the cost and effort of larviciding programmes by testing persistent larvicides that reduce the frequency of application and by exploring novel strategies of application. This thesis aimed to evaluate two larval control agents, with unique mode of actions: the self-spreading silicone-based film Aquatain Mosquito Formulation (AMF) and the pyriproxyfen-based insect

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21

Wyse, Ana Paula Pintado. "Optimal control for malaria vector for a seasonal mathematical model." Laboratório Nacional de Computação Científica, 2007. http://www.lncc.br/tdmc/tde_busca/arquivo.php?codArquivo=140.

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In the Amazonian region occurs a variation in the malaria incidence, which is related to the pluviometric variation annual. The mathematical model proposed here considers this seasonality and different treatment intensities accessible to the infected people. The numerical evidence the seasonal fluctuation and the relationship between the environment temperature and treatment efficiency, showing that the temperature increase strongly affects the extrinsic latent period,reducing the healthy care efficiency. Because malaria treatment already exists it should be import. For another hand, even the

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22

Pye, Gregory. "Precision position control of a three-phase squirrel-cage induction motor using vector control." Thesis, University of Reading, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.357862.

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23

Lee, Bong-ha. "Active power system compensator with fuzzy vector controller." Thesis, Queensland University of Technology, 2002. https://eprints.qut.edu.au/36152/1/36152_Lee_2002.pdf.

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Active power compensation of reactive power and harmonic distortion caused by non-linear loads can be achieved by using a current controlled, voltage-source inverter based compensator. The compensation technique used injected waveform control along with vector control based on instantaneous power theory allows a general purpose inverter based compensator to perform full compensation of var, power factor and harmonic distortion and other non-linear components. Dr. Keith Hoffman has developed an instantaneous control algorithm capable of eliminating harmonics and calculating the in-phase fund

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24

Salehi, Arashloo Ramin. "Fault tolerant vector control of five-phase permanent magnet motors." Doctoral thesis, Universitat Politècnica de Catalunya, 2014. http://hdl.handle.net/10803/283138.

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Equipped with appropriate control strategies, permanent magnet (PM) machines are becoming one of the most flexible types of actuators for many industrial applications. Among different types of PM machines, five-phase BLDC machines are very interesting in fault tolerant applications of PM drives. Torque improvement in five-phase BLDC machines can be accomplished by optimizing their mechanical structure or by enhancing their controlling methods. New current controllers are proposed in this thesis to improve the quality of generated torque under normal operations of five-phase BLDC machines. Pro

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25

Lamine, Adoum. "Vector control of induction machines considering the stray load losses." Thesis, Liverpool John Moores University, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.436561.

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26

Nguyen, Tâm Willy. "Thrust Vector Control of Multi-Body Systems Subject to Constraints." Doctoral thesis, Universite Libre de Bruxelles, 2018. https://dipot.ulb.ac.be/dspace/bitstream/2013/279469/5/contratTN.pdf.

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This dissertation focuses on the constrained control of multi-body systems which are actuated by vectorized thrusters. A general control framework is proposed to stabilize the task configuration while ensuring constraints satisfaction at all times. For this purpose, the equations of motion of the system are derived using the Euler-Lagrange method. It is seen that under some reasonable conditions, the system dynamics are decoupled. This property is exploited in a cascade control scheme to stabilize the points of equilibrium of the system. The control scheme is composed of an inner loop, tasked

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27

Gulec, Mustafa Alpertunga. "Vector Controlled Elevator Drive." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/2/12607186/index.pdf.

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In this thesis, a practical vector controlled elevator drive is presented. Indirect vector control of induction machine is investigated in theory and then implemented. Control technique is compared with scalar control and induction machine is compared with dc motor. The operation of the system depends on induction machine parameters, so how to accurately and automatically obtaining of the parameters is also presented. Finally, the elevator system is introduced, the application of this control system to the elevator system is described and a basic elevator control system is simulated.

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28

Bharadwaj, Aravind S. "Vector controlled induction motor drive systems." Diss., This resource online, 1993. http://scholar.lib.vt.edu/theses/available/etd-06062008-172143/.

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29

Slater, Howard James. "Real time emulation environment for digital control development." Thesis, University of Newcastle Upon Tyne, 1997. http://hdl.handle.net/10443/925.

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Simulation is a powerful tool for developing electric drive systems. Simulations allow the designer to experiment with control algorithms and hardware systems in a safe environment. To this end simulation is becoming increasingly popular. On'-line simulation does have its limitations in that the controller developed during the simulation period has eventually to be transferred to the target processor which will operate in the actual drive system. If, however, a real-time simulation environment could be realised, then the actual controller running in the actual target processor could be include

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30

Jung, Jackson H. (Jackson Hoa-Wai). "Modeling, and classical and advanced control of a solid rocket motor thrust vector control system." Thesis, Massachusetts Institute of Technology, 1993. http://hdl.handle.net/1721.1/12473.

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Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1993.<br>Includes bibliographical references (leaves 119-124).<br>by Jackson H. Jung.<br>M.S.

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31

Vogt, Michael. "Support vector machines for identification and classification problems in control engineering /." Düsseldorf : VDI-Verl, 2008. http://d-nb.info/988654822/04.

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32

Reno, Margaret Mary. "Modeling transient thermal behavior in a thrust vector control jet vane." Thesis, Monterey, California. Naval Postgraduate School, 1988. http://hdl.handle.net/10945/23074.

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33

Caruana, Cedric. "Sensorless vector control of cage induction machines using signal injection techniques." Thesis, University of Nottingham, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.403392.

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34

Liu, Yu. "SLOTLESS SIX-PHASE BRUSHLESS DC MACHINE DESIGN AND STEPPING VECTOR CONTROL." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1440086585.

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35

Rasgon, Jason Laurence. "Wolbachia infection dynamics and applied vector-borne disease control in mosquitoes /." For electronic version search Digital dissertations database. Restricted to UC campuses. Access is free to UC campus dissertations, 2003. http://uclibs.org/PID/11984.

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36

Brown, Zachary Steven. "The Economics of Malaria Vector Control." Diss., 2011. http://hdl.handle.net/10161/3880.

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<p>In recent years, government aid agencies and international organizations have increased their financial commitments to controlling and eliminating malaria from the planet. This renewed emphasis on elimination is reminiscent of a previous worldwide campaign to eradicate malaria in the 1960s, a campaign which ultimately failed. To avoid a repeat of the past, mechanisms must be developed to sustain effective malaria control programs.</p><p>A number of sociobehavioral, economic, and biophysical challenges exist for sustainable malaria control, particularly in high-burden areas such as sub-Sah

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37

Davenport, Mark A. "Error control for support vector machines." Thesis, 2007. http://hdl.handle.net/1911/20500.

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In binary classification there are two types of errors, and in many applications these may have very different costs. We consider two learning frameworks that address this issue: minimax classification, where we seek to minimize the maximum of the false alarm and miss rates, and Neyman-Pearson (NP) classification, where we seek to minimize the miss rate while ensuring the false alarm rate is less than a specified level a. We show that our approach, based on cost-sensitive support vector machines, significantly outperforms methods typically used in practice. Our results also illustrate the impo

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38

Shao, Shih-Hang, and 邵士航. "Vector Hierarchical Control of a Ballbot." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/60695440042203681219.

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碩士<br>中華大學<br>電機工程學系碩士班<br>102<br>A ballbot is consisted of a ball, a body, and three Omni wheels which have been arranged triangle form, so the ballbot can move freely in two-dimension plane with a spinning ability at fixed point. Conventional hierarchical sliding mode control (HSMC) and cascaded sliding mode control (CSMC) are utilized to control under-actuated nonlinear systems. We modify their essential switching scheme as a simple positive constant without any switching, but we kept their structure. The fundamental subsystem is the combination of the original variable and its derivative w

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39

Lee, Wen-Lung, and 李文龍. "Adaptive Control for Induction Motors Using Principles of Vector Control." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/40166435970034126953.

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碩士<br>中原大學<br>電機工程學系<br>87<br>On the basis of measurable rotor speed, stator current and stator voltage, the control design methodology for speed tracking and torque tracking problems of induction motors with unknown rotor resistance and loading torque is proposed in this paper. The proposed nonlinear adaptive controller is developed by integrating the design methods of a two-stage design approach and virtual desired variables. Based on the two-stage approach, the speed tracking problem is transformed to an equivalent control problem for torque tracking. The virtual desired variables include d

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Chou, Ping-Kuei, and 周炳奎. "THE VECTOR CONTROL OF INDUCTION SERVO MOTOR." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/32046536009375292433.

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41

Jain, Ting-Yu, and 簡廷諭. "The Implementation of a Vector Control Inverter." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/25477046337571980920.

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碩士<br>逢甲大學<br>電機工程學系<br>105<br>This thesis presents using vector control method to design a motor inverter. By formula derivation in this thesis find out that torque can be control by the current on the rotation coordinate. Because the torque of the motor can be directly control by the current, so the speed can be increase or decrease instantly. Then use SVPWM method to drive the inverter of the motor. Comparing with other control methods such as two phase conducted method or three phase conducted method, using SVPWM method has higher voltage efficiency and better performance. In this thesis,

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42

Su, Ya-Lin, and 蘇雅琳. "Solid Texture Synthesis with Vector Field Control." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/10497314112487397952.

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碩士<br>國立交通大學<br>多媒體工程研究所<br>96<br>Recently, some researches have been focusing on solid texture synthesis and most of them use three orthogonal 2D slices to synthesize solid textures. However, these methods only use the information on three 2D slices for neighborhood matching, and the information within 3D space is not used. It makes the results lost some information, and it is unable to control solid textures in the 3D space. Our method presents a new technique for generating solid textures with cube neighborhood matching. It helps us to synthesize within real 3D space. Appearance vectors are

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Wu, Ming-Jheng, and 吳明政. "Induction Motor Driver Design and Vector Control." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/28881638872586406273.

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碩士<br>國立中正大學<br>機械工程學系暨研究所<br>101<br>This thesis describes how I to creat a vector control system for an induction motor. First analyzed the model of the induction motor, and then research the viability of two control theories, scalar control and vector control. It was decided upon to use vector control. I also researched vector control theory of torque control and speed control. Then I identified the system parameters which are required in order to implement vector control. The experiments used were DC, Stall-signal phase, and no load. Finally I introduced the driver, which was designed by my

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Echavarria, Diaz-Guardamino Ignacio. "Combining suction control and transverse jets for fludic thrust vector control." 2008. http://proquest.umi.com/pqdweb?did=1546798681&sid=15&Fmt=2&clientId=39334&RQT=309&VName=PQD.

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Thesis (M.S.)--State University of New York at Buffalo, 2008.<br>Title from PDF title page (viewed on Nov. 14, 2008) Available through UMI ProQuest Digital Dissertations. Thesis adviser: Forliti, David J. Includes bibliographical references.

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Suresh, Banoth. "Sensor Less Vector Control of Induction Motor Based on MRAS Control." Thesis, 2018. http://ethesis.nitrkl.ac.in/9892/1/2018_MT_216EE4294_BSuresh_Sensor.pdf.

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The implementation of vector control technique needs speed information of motor from the tachogenerators, incremental encoders or resolvers to measure the speed. The speed and flux sensors require careful mounting, alignment and it needs special attention to reduce the noise due to electrical phenomenon. The speed sensors require maintenance and extra space for mounting which increases size and cost of drive system in practical implementation. These problems can be eliminated by speed estimation techniques without using any external sensors in machine. It can be achieved by using Model Referen

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Yukselen, Alp. "Heat transfer modelling of thrust vector control systems." Thesis, 1986. http://hdl.handle.net/10945/21890.

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錢宣浩. "A midcourse guidance law with Thrust Vector Control." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/95955790097775964727.

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碩士<br>國立臺灣大學<br>電機工程學研究所<br>88<br>A nonlinear missile guidance controller with Thrust Vector Control(TVC) inputs for the interception of a theater ballistic missile is presented. In this thesis, the midcourse phase of the missile is discussed, during which many non-ideal conditions must be considered, such as variation of the inertia of the missile and the aerodynamic force, and the controller is designed according to the properties of TVC. A 3D optimal midcourse guidance law is designed to minimize the control effort and the distance between the missile and the target wi

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Kuo, Ei-Lang, and 郭益郎. "Speed Sensorless Vector Control of Induction Motor Driver." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/58682933314356013189.

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碩士<br>淡江大學<br>機械工程學系<br>88<br>The objective of this thesis is to develop a sensorless speed estimator for induction motor drives. From the state equations of the induction motor, we derive the estimation algorithm of which inputs include stator currents and voltages, and rotor flux. In order to reduce the hardware burden, only currents of two phases are measured by using hardware sensors, while the voltages and rotor flux are determined by using software estimates. For the voltage estimation, we utilize the PWM switching states that are created by a DSPC240 controller. On the other

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Wei, Zi-Xuan, and 魏子軒. "Modeling and Vector Hierarchical Control of Spherical Robots." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/28975046240507248766.

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碩士<br>中華大學<br>電機工程學系碩士班<br>102<br>In this thesis, a spherical robot consisting of a spherical wheel, a body, and four Omni wheels is modeled first. We discard the essential switching scheme in the conventional hierarchical sliding mode control (HSMC) and cascaded sliding mode control (CSMC) schemes, but the cascaded and hierarchical structure have been preserved to develop new control algorithms. Without considering the coordinate transformation, a cascaded control (CC), a hierarchical control (HC), a vector hierarchical control (VHC) algorithms are proposed. At the same time, we also present

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Ho, Yu-Ta, and 何郁達. "Development of PMSM Driver Based on Vector Control." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/07832596783018578875.

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碩士<br>國立中央大學<br>機械工程研究所<br>95<br>This thesis discusses the application of space vector control and the design of permanent magnet synchronous motor (PMSM) driver. The advantages of PMSM are high power density, high efficiency and good accelerated ability. These advantages make PMSM a widely used motor. First, researching on mathematical model of PMSM, we found that in rotating coordinate state variables are not coupling, and control structure become mot simple. The anti-windup PI controller prevents transient response from being worse when control commends saturate. Using the space vector puls

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