Tesis sobre el tema "Rotor current estimation and control"
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Peng, Wei. "Fast Modelling, Torque-Ripple-Reduction and Fault-Detection Control of Switched Reluctance Motors". Doctoral thesis, Universite Libre de Bruxelles, 2019. https://dipot.ulb.ac.be/dspace/bitstream/2013/285757/5/contratWP.pdf.
Texto completoDoctorat en Sciences de l'ingénieur et technologie
info:eu-repo/semantics/nonPublished
Abdellatif, Meriem. "Continuité de service des entraînements électriques pour une machine à induction alimentée par le stator et le rotor en présence de défauts capteurs". Thesis, Toulouse, INPT, 2010. http://www.theses.fr/2010INPT0107/document.
Texto completoThe development of closed loop controls for electrical drives requires the sensor installations in order to get feed back information. Nevertheless, any occurred sensor fault (current sensor,speed/position sensor,…) shows an operation system deterioration which leads in most cases to its shut down. This consequence is in contrast to industrial expectations especially concerning the system high accuracy that they are asking for. Statistic studies point out the sensor faults as frequent. So, it is necessary to find out solutions ensuring the system service continuity in case of any sensor fault. Firstly, the study presented in this work shows the used sensor technologies in order to understand both of the reason and the kind of occurred faults. Secondly, the studied system is presented which is an electrical drive based on a Doubly Fed Induction Machine (DFIM) operating in motor mode and connected to the grid by two inverters. The control developed is a Direct Torque Control (DTC). The control validation, in healthy operating mode, is realised throw simulation and experimentally. After, a study considering alternative current sensor and speed/position sensor faults are achieved. The developed algorithms are based on signal estimation, on a Fault Detection Isolation (FDI) and reconfiguration algorithms. In fact, they are simple to carry out, they don't need much hardware resources for implementation and their execution time is short. Finally, the experimental validation of the developed algorithms shows their efficiency. The system continues working even in presence of a sensor fault. Thus, the obtained control becomes a fault tolerant control thanks to these algorithms
Staines, Cyril Spiteri. "Sensorless position estimation in asymmetric induction machines". Thesis, University of Nottingham, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.267588.
Texto completoSmith, Trent P. "Full-Pose Estimation and Tracking Control for a Multi-Rotor Aircraft Package Exchange". DigitalCommons@USU, 2019. https://digitalcommons.usu.edu/etd/7515.
Texto completoFelicetti, Roberto. "Field Current Control for the Damping of Rotor Oscillations and for the Alternative Start of Synchronous Machines : Further Innovative Applications of Field Current Active Control besides UMP-Compensation". Thesis, Uppsala universitet, Institutionen för teknikvetenskaper, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-353669.
Texto completoLu, Fei [Verfasser]. "Induction Machine Control: State Observation, Electromagnetic Analysis, Modeling for Control, Finite Element Simulation, and Rotor Temperature Estimation / Fei Lu". Düren : Shaker, 2021. http://d-nb.info/1240853866/34.
Texto completoMuñoz, Aguilar Raúl Santiago. "Sliding mode control of the stand alone wound rotor synchronous generator". Doctoral thesis, Universitat Politècnica de Catalunya, 2010. http://hdl.handle.net/10803/5960.
Texto completoCuatro diferentes controladores basados en técnicas de modos deslizantes fueron diseñados en el marco de referencia dq. Las leyes de control obtenidas regulan la amplitud de la tensión de estator independientemte del valor de la carga. Adicionalmente, sólo las medidas de tensión y posición del rotor (para calcular la transformada dq) son necesarias. La estabilidad de los puntos de equilibrio obtenidos fueron probados al menos utilizando anàlisis de pequeña señal.
Se realizó la validación por simulación y experimental de cada controlador en diferentes escenarios. Los resultados obtenidos validan los diseños y muestran las principales ventajas y desventajas de el sistema en lazo cerrado.
El capítulo 2 cubre los problemas de modelado de la màquina sincrónica de rotor bobinado. Partiendo de las ecuaciones trifásicas generales, y utilizando la transformada de Park, se encontraron el modelo en dq del generador sincrónico de rotor bobinado (WRSG) en isla, alimentando tanto carga resistiva como inductiva. Los puntos de equilibrio del sistema obtenido fueron analizados y calculados, luego se definió el objetivo de control. Finalmente, se obtuvieron modelos lineales aproximados y sus respectivas funciones de transferencia.
Los controladores PI son los más usados en la industria porque ofrecen buen desempeño y son sencillos de implementar. En el capítulo 3, se obtuvieron las reglas de sintonización para el controlador PI, y se analizaron estos resultados con el objetivo de proponer nuevos controladores que mejoraran el desempeño de la clásica aproximación PI.
El esquema de control en modos deslizantes para la WRSG conectada a una carga resistiva fue diseñado en el capítulo 4. Éste, también incluye un completo análisis de estabilidad del sistema en lazo cerrado.
El capítulo 5 presenta dos diseños basados en modos deslizantes para regular la amplitud de la tensión de estator para el WRSG actuando en isla. Ambos diseños usan la componente d de la tensión de estator en la función de conmutación. El primer caso es un control anidado, donde un lazo externo PI es añadido para proveer la referencia de la componente d de la tensión. En la segunda aproximación un término integral es añadido a la superficie de conmutación.
El caso de alimentar una carga inductiva es estudiado en el capítulo 6. El controlador requiere una extensión dinámica debido a que la amplitud de la tensión de estator es una salida de grado relativo cero. Como resultado, un controlador robusto, que no depende de los parámetros de la máquina ni de los valores de carga es obtenido.
En el capítulo 7 los resultados de simulación y experimentales para los controladores diseñados para el WRSG actuando en isla son presentados. En primer lugar, una descripción completa del banco es presentada. Esta incluye detalles de la etapa de adquisición de datos y de la DSP utilizada. En segundo lugar, se hace la descripción del procedimiento de simulación. Luego, las simulaciones y experimentos, que contienen diferentes escenarios, con cambios de referencia y variaciones de carga para cada controlador son presentados.
The control of the stand-alone the wound rotor synchronous generator has been analyzed in this dissertation. For this islanded configuration, the mechanical speed determines the frequency, and the rotor voltage is used to set the stator voltage amplitude. Due to the electrical time constant is so fast compared with the mechanical time constants, the mechanical speed was considered constant and externally regulated and the research was focused on the stator voltage amplitude regulation.
Four different controllers based on sliding mode control techniques were designed in the dq reference frame. The obtained control laws regulate the stator voltage amplitude irrespectively of the load value. Furthermore, only voltage and rotor position measures (to compute the dq transformation), are required. The stability of the obtained equilibrium points was proved at least using small-signal analysis.
Simulation and experimental validation of each controller containing several scenarios were carried out. The obtained results validate the designs and show the main advantages and disadvantages of each closed loop system.
Chapter 2 covers the modeling issues of the wound rotor synchronous machine. From the general three-phase dynamical equations, and using the Park transformation, the dq-model of the stand-alone wound rotor synchronous generator feeding both a resistive and an inductive load are obtained. Equilibrium points of the obtained systems are analyzed and, after defining the control objective, the desired equilibrium points are computed.
Finally, linear approximated models are obtained and their transfer functions are also presented.
PI controllers are the most used in the industry because they offers good performance and are easily implementables. In Chapter 3 we obtain the tuning rule for the PI controller, and we analyze these results in order to propose new controllers which improve the classic PI approach.
The sliding mode control scheme for the WRSG connected to a resistive load is designed in Chapter 4. It also includes a complete stability analysis of the closed loop system.
Chapter 5 presents two sliding mode designs to regulate the stator voltage amplitude for a stand-alone wound rotor synchronous generator. Both use the stator voltage d-component error in the switching function. The first case is a nested controller, where an outer PI loop is added to provide the proper d-voltage component reference. In the second approach an integral term is added to the switching function.
The case of feeding an inductive load is studied in Chapter 6. The controller introduces a dynamic extension because the stator voltage amplitude is a zero relative degree output. As result, a robust controller, which neither depends on the machine parameters nor on the load values, is obtained.
In Chapter 7 the simulation and the experimental results of the designed controllers for the stand-alone wound rotor synchronous generator are presented. Firstly, a complete description of the bench is provided. It also includes details of the data acquisition stage and the used DSP card. Secondly, the description of the simulation procedure is commented. Then, the simulation and experiments which contains several scenarios, with reference change and load variations evaluated for each controller are presented.
Smith, Lerdudomsak, Mitsuhiro Kadota, Shinji Doki y Shigeru Okuma. "Harmonic Currents Estimation and Compensation Method for Current Control System of IPMSM in Overmodulation Range". IEEE, 2007. http://hdl.handle.net/2237/9474.
Texto completoKRISHNAMURTHY, ANUSHA. "STATISTICAL ESTIMATION AND REDUCTION OF LEAKAGE CURRENT BY INPUT VECTOR CONTROL WITH PROCESS VARIATIONS CONSIDERED". University of Cincinnati / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1141407299.
Texto completoCambron, Daniel. "A Lithium Battery Current Estimation Technique Using an Unknown Input Observer". UKnowledge, 2016. http://uknowledge.uky.edu/ece_etds/84.
Texto completoBradley, William J. "Current Based Fault Detection and Diagnosis of Induction Motors. Adaptive Mixed-Residual Approach for Fault Detection and Diagnosis of Rotor, Stator, Bearing and Air-Gap Faults in Induction Motors Using a Fuzzy Logic Classifier with Voltage and Current Measurement only". Thesis, University of Bradford, 2013. http://hdl.handle.net/10454/7265.
Texto completoThe full-text was made available at the end of the embargo period on 29th Sept 2017.
Bradley, William John. "Current based fault detection and diagnosis of induction motors : adaptive mixed-residual approach for fault detection and diagnosis of rotor, stator, bearing and air-gap faults in induction motors using a fuzzy logic classifier with voltage and current measurement only". Thesis, University of Bradford, 2013. http://hdl.handle.net/10454/7265.
Texto completoZadeh, Ramin Agha. "Performance control of distributed generation using digital estimation of signal parameters". Thesis, Queensland University of Technology, 2010. https://eprints.qut.edu.au/47011/1/Ramin_Agha_Zadeh_Thesis.pdf.
Texto completoRundin, Patrick. "Evaluation of a statistical method to use prior information in the estimation of combustion parameters". Thesis, Linköping University, Department of Electrical Engineering, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-6255.
Texto completoIon current sensing, where information about the combustion process in an SI-engine is gained by applying a voltage over the spark gap, is currently used to detect and avoid knock and misfire. Several researchers have pointed out that information on peak pressure location and air/fuel ratio can be gained from the ion current and have suggested several ways to estimate these parameters.
Here a simplified Bayesian approach was taken to construct a lowpass-like filter or estimator that makes use of prior information to improve estimates in crucial areas. The algorithm is computationally light and could, if successful, improve estimates enough for production use.
The filter was implemented in several variants and evaluated in a number of simulated cases. It was found that the proposed filter requires a number of trade-offs between variance, bias, tracking speed and accuracy that are difficult to balance. For satisfactory estimates and trade-off balance the prior information must be more accurate than was available.
It was also found that similar a task, constructing a general Bayesian estimator, has already been tackled in the area of particle filtering and that there are promising and unexplored possibilities there. However, particle filters require computational power that will not be available to production engines for some years.
Vid jonströmsmätning utvinns information om förbränningsprocessen i en bensinmotor genom att en spänning läggs över gnistgapet och den resulterande strömmen mäts. Jonströmsmätning används idag för knack- och feltändningsdetektion. Flera forskare har påpekat att det finns än mer information i jonströmmen, bl.a. om bränsleblandningen och cylindertrycket och har även föreslagit metoder för att utvinna och använda den informationen för skattning av dessa parametrar.
Här presenteras en förenklad Bayesisk metod i form av en lågpassfilter-liknande skattare som använder förkunskap till att förbättra estimat på relevanta områden. Algoritmen är beräkningsmässigt lätt och kan, om den är framgångsrik, leverera skattningar av förbränningsparametrar som är tillräckligt bra för att användas för sluten styrning av en bensinmotor.
Skattaren, eller filtret, implementerades i flera varianter och utvärderades i ett antal simulerade fall. Resultaten visade på att flera svåra avvägningar måste göras mellan förbättring i varians, avvikelse och följning eftersom förbättring i den ena ledde till försämring i de andra. För att göra dessa avvägningar och få goda skattningar krävs bättre förhandskunskap och mätdata än vad som var tillgängligt.
Bayesisk skattning är ett stort befintligt område inom statistik och signalbehandling och den mest generella skattaren är partikelfiltret som har många intressanta tillämpningar och möjligheter. De har hittills inte använts inom skattning av förbränningsparametrar och har således go potential för framtida utveckling. De är dock beräkningsmässigt tunga och kräver beräkningsresurser utöver vad som är tillgängliga i ett motorstyrsystem idag.
Messali, Amir. "Contribution to Rotor Position and Speed Estimation for Synchronous Machine Drive Using High Frequency Voltage Injection : Application to EV/HEV Powertrains". Thesis, Ecole centrale de Nantes, 2019. http://www.theses.fr/2019ECDN0048.
Texto completoThis thesis is part of the Renault / Centrale Nantes Chair on improving the performance of electric vehicles (EV / HEV). It is dedicated to the problem of estimating the position / speed of self-sensing permanent magnet synchronous motors (PMSM) without mechanical sensors, using high frequency (HF) signal injection techniques over the full speed range of PMSM. In this context, several contributions have been proposed in the demodulation / signal processing and tracking algorithms parts of HF injection techniques, in order to improve the estimation of the position / speed of the MSAP compared to the existing methods. In the demodulation / signal processing part of the HF injection techniques, the contributions consisted of proposing original solutions making it possible to reduce the filtering effects in the estimation chain and to make the latter independent of the electrical machine parameters. In the tracking part, the contributions mainly concern the use of the function sign of the position error (instead of the position error) as measurement information, to estimate the position, the speed and the acceleration of self-sensing PMSM with firstorder sliding mode observers (conventional, step-by-step and adaptive). The contributions proposed in both parts have the advantages of robustifying the estimation chain by making it independent of electrical and mechanical parameters on the one hand. On the other hand, they allow improving the accuracy and performance of the estimation chain, and therefore the control of self-sensing PMSM, in transient and steady-state phases with an easy tuning method. The estimation methods developed were tested in simulation and experimentation on a test bench of electrical machines. The results obtained made it possible to highlight the performances of these methods in terms of trajectory tracking and robustness over the entire operating range of PMSM self-sensing control
Moravec, Vojtěch. "Odhad polohy rotoru PMSM pomocí VF signálu". Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-240847.
Texto completoSoviš, Jiří. "Bezsnímačové řízení střídavých motorů na platformě STM32". Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2021. http://www.nusl.cz/ntk/nusl-442463.
Texto completoGomes, Luciano Coutinho. "Acionamento vetorial de motores de indução trifásicos com enfraque-cimento de campo e maximização do conjugado por ampère". Universidade Federal de Uberlândia, 2008. https://repositorio.ufu.br/handle/123456789/14250.
Texto completoThis work investigates the operation of three phase induction motors in field weakening and high speed regions. Maximum torque per ampère is imposed by using an indirect vector control strategy. Mathematical models that accounts for magnetic saturation is used for simulations and adjustment of controllers used in control algorithm. The driving structure is characterized by the use of VSI static converter with sinusoidal PWM switching strategy and a vector control technique based on orthogonal components. Investigations resulted in the development of a digital simulation using discrete models that turned out generic and reliable, and an experimental system using a low cost fixed point DSP platform. Simulated and experimental results are included and shown the robustness and efficiency of the proposed control system under different operating conditions.
O presente trabalho tem como objetivo estudar a operação de motores de indução trifásicos em regime de enfraquecimento de campo e altas velocidades, com maximização do conjugado por ampère, através de um sistema de acionamento vetorial. Para tanto, foi utilizado uma modelagem matemática completa, por fase, que emprega o conceito de função harmônica magnética e considera as componentes, fundamental e de terceiro harmônico do fluxo de entreferro. A estrutura de acionamento caracteriza-se pela utilização de um inversor de tensão PWM senoidal e da técnica de controle vetorial, esta baseada em componentes ortogonais. A evolução do trabalho resultou no desenvolvimento de uma plataforma de simulação computacional baseada em modelos discretos que é bastante genérica e confiável, e um sistema experimental utilizando um processador digital de sinais de baixo custo com aritmética de ponto fixo. Os resultados de simulação e experimentais que avaliam a eficiência do sistema de controle proposto sob diversas condições de operação e efeitos de dessintonia são apresentados e apontam para robustez do método.
Doutor em Ciências
Popescu, Andrei. "Approches de commande pour des objectifs d'estimation : application au courant tunnel et aux processus de lévitation magnétique". Thesis, Université Grenoble Alpes (ComUE), 2019. http://www.theses.fr/2019GREAT062.
Texto completoThis PhD thesis gathers its main contributions in the field of observers for dynamical systems, originally motivated by applications in MEMS or NEMS (Micro or Nano Electromechanical Systems), with a more particular case related to tunneling current. It also happened to consider experiments with a magnetic levitation system.Contributions of this PhD thesis are of two types, according to its two main parts:1. Methodological part: designing different control strategies to obtain observers using the control-based paradigm. In particular, we focused on non-optimal approaches (like Proportional and Proportional-Integral), optimal ones (Linear Quadratic Regulator and Linear Quadratic Integrator) and sub-optimal methods (Hinf controller). Moreover, we focus on the main two ways to formulate a control (tracking) problem, namely Error feedback regulation problem and Full information regulation problem.2. Experimental part: Applying the obtained methods for improving the topographic imaging using a Scanning-Tunneling Microscope as well as to improve the disturbance estimation for a magnetic levitation process.More precisely, each part will take the form of two chapters:1. Chapter II, dedicated to a formal introduction and contributive discussion about the ’control based observer’ approach this PhD investigates, and Chapter III, focusing on the use of such an approach for the purpose of new robust observer design in particular within an Hinf framework.2. Chapter IV, related to STM application, and chapter V, presenting the MAGLEV case.A final chapter VI summarizes the main conclusions of this work as well as some perspectives
Masoud, Khalid Hasan. "Circuits and controls for grid-connected inverters". Thesis, Queensland University of Technology, 2002.
Buscar texto completoChen, Jenn-Yih y 陳進益. "Passivity-Based Position Control and Rotor Resistance Estimation for an Induction Motor". Thesis, 2002. http://ndltd.ncl.edu.tw/handle/72324371792739352569.
Texto completo國立臺灣科技大學
電機工程系
90
This dissertation presents passivity-based adaptive control and sliding mode control schemes for the position control of an induction motor. First, the mathematical model of the induction motor in the synchronously rotating reference frame is derived from the three-phase circuit via the coordinate transformation. There is no need to design a rotor flux observer when the electrical parameters of the induction motor are known. The dynamics of the induction motor and the position controllers are analyzed to be passive by the passivity theorem. Furthermore, one can also design a rotor resistance observer and a sliding mode controller to estimate the rotor resistance and control the position of the induction motor. First, the input-output linearization theory is employed to decouple the rotor position and the flux amplitude in the rotor reference frame. Then, a flux observer is adopted to estimate the rotor flux. The passive properties of the rotor resistance observer with the flux observer and the sliding mode position controller are analyzed by the passivity theorem. The stability analysis of the overall position control system is carried out by using the passivity theorem instead of Lyapunov-type arguments. Finally, the C language is used to implement the proposed control algorithm on a PC-based controller, and applied to a three-phase induction motor for the position control purpose. Experimental results are provided to show good position response and fast convergent speed of the estimated parameters for the composite adaptive controller. The proposed sliding mode position controller with an adaptive law is valid for eliminating the chattering effects associated with a conventional sliding mode position controller. When the rotor resistance is varied with the temperature, the proposed rotor resistance observer with a sliding mode controller are effective in estimating the rotor resistance, load torque disturbances and tracking the rotor position.
Wang, Yen-Kai y 王衍凱. "EKF-based rotor and stator resistance estimation in speed sensorless control of IMs". Thesis, 2010. http://ndltd.ncl.edu.tw/handle/25853837561782475094.
Texto completo國立臺灣科技大學
機械工程系
98
The system parameters of induction motor(IM) vary with different operating conditions. The temperature-dependent variation of the stator and rotor resistance, which induces a large estimation error on speed and flux, has been a critical issue for speed-sensorless control. On speed-sensorless control, the observer is as important as the controller. The noise immunity and real time estimation ability of Extended Kalman filter(EKF)-based observer lead to a popular application in the field of speed-sensorless control. However, the simultaneous estimation of stator and rotor resistance based on EKF in speed-sensorless control of IMs has not been done to the best of author's knowledge. A novel EKF-based estimation method is proposed for simultaneous estimation of stator and rotor resistance. The simultaneous estimation is achieved by an augmented state for the stator temperature dynamics. The broken-bar phenomenon of rotor can also be detected in the case we studied. Simulation results display promising robustness to variation of system parameters.
Bhattacharya, Tanmoy. "Flux Estimation, Parameter Adaptation And Speed Sensorless Control For Vector Controlled Induction Motor Drive". Thesis, 2005. http://etd.iisc.ernet.in/handle/2005/1406.
Texto completoLin, Yu-Sheng y 林裕勝. "The Realization of a Novel Control of Doubly-Fed Induction Generator by Using Rotor Current". Thesis, 2010. http://ndltd.ncl.edu.tw/handle/mb7u36.
Texto completo國立臺北科技大學
電機工程系研究所
98
Currently, most of Doubly-Fed Induction Generators(DFIGs) were controlled by the rotor voltage commands. This thesis directly inputs rotor current commands to control the real and imaginery powers of DFIGs. First, the vector control principle is used to develop the real power、imaginery power and capacitor voltage controls. In order to effectively control DFIGs, the model of DFIGs are transformed from the a-b-c frame to the d-q axis frame. Then both the PI linear control and Backstepping nonlinear control theories are adopted to realize the control of the real and imaginery powers. The PSCAD/EMTDC and Matlab/Simulink are used to simulate and verified the proposed PI control and Backstepping nonlinear control respectively. Meanwhile, the PSCAD/EMTDC and Matlab/Simulink are compared in the simulation chapter. The results confirm the performances of the proposed real power、imaginery power and capacitor voltage controllers
Hsu, Shuen-Jan y 許舜然. "Artificial Intelligence based Rotor Resistance and Speed Estimation in Speed-Sensorless Control of Induction Motor". Thesis, 2016. http://ndltd.ncl.edu.tw/handle/15869271042286619140.
Texto completo國立臺灣科技大學
機械工程系
104
The performance of sensorless control of induction motors (IMs) is dramat- ically affected by the variation of parameters such as rotor resistance especially at low speeds and heavy loads. A novel hybrid artificial neural network (HANN), including a cerebellar model adaptive controller (CMAC) and an adaptive linear element (ADALINE), is developed in this thesis to estimate the rotor resistance and the motor speed simultaneously. On the other hand, a self-tuning PI-type fuzzy logic controller (FLC) is used to achieve motor speed control based on the speed estimate. Experimental results show that the proposed sensorless speed con- trol strategy achieves accurate speed control even at low speed and under loaded conditions.
Bangura, Moses. "Aerodynamics and Control of Quadrotors". Phd thesis, 2017. http://hdl.handle.net/1885/112382.
Texto completoHo, Yen-Chieh y 何彥頡. "Sliding Mode Based Rotor Flux Observer and New Current Controller for Speed Sensorless Vector Control of Induction Motor Drives". Thesis, 2010. http://ndltd.ncl.edu.tw/handle/81350807685616085016.
Texto completo崑山科技大學
電機工程研究所
98
A speed sensorless system is proposed for direct vector control of induction motor drives. In this thesis, based on a sliding mode stator current observer, a sliding mode rotor flux observer is adopted. Rotor flux is merely integrated from the control input of the current observer when the estimated current error approaches zero. In other words, the sliding mode observer is insensitive to motor parameters variations. In general, a PI current controller is often used in field oriented control scheme to produce the stator voltage command. It is time-consuming to tune the proportional control and integral control parameters of the PI current controller. A new current controller is used in this thesis. Feedback stator current information and tunning the PI control parameters are not required in the new current controller. Then, the aforementioned new current controller and the sliding mode rotor flux observer are applied to a speed sensorless induction motor drives for speed and position control. First, the proposed control scheme has evaluated by MATLAB/Simulink simulation toolbox. Then, a PC-based experimental system is constructed to test the performances of the overall system.
Tseng, Chun-Ming y 曾俊銘. "Model Based Predictive Current Control with Online Inductance Estimation for Three-Phase AC/DC Converter". Thesis, 2018. http://ndltd.ncl.edu.tw/handle/xsm5ym.
Texto completo國立臺北科技大學
電機工程系
106
The main purpose of this paper is to propose a model based predictive current control with online inductance estimation for three-phase AC/DC converter. Because the traditional model based predictive current control is easily susceptible to inaccurate inductance parameters, and thereby affect system response and performance. The traditional model based predictive current control is improved by the estimation of the inductance. Finally, the switching state of the converter is predicted via the minimization of the cost function. It is worth mentioning that online inductance estimation does not need to add additional sensor in the traditional converter, though the parameters change will not affect the control performance. The method proposed in this thesis using Texas Instruments microprocessor controller TMS320F28377D. The digitized control is achieving by a software to confirm the validity of model based predictive current control method with online inductance estimation. In addition, the measured harmonics will meet the specifications of IEC61000-3-2 Class A.
Kim, E. "Current estimation and path following for an autonomous underwater vehicle by using a model-based nonlinear observer". Thesis, 2021. https://eprints.utas.edu.au/37923/1/Kim_whole_thesis.pdf.
Texto completoLukic, Zdravko. "Design and Practical Implementation of Advanced Reconfigurable Digital Controllers for Low-power Multi-phase DC-DC Converters". Thesis, 2012. http://hdl.handle.net/1807/33855.
Texto completo