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Author : N. M. Tsang
Publisher :
ISBN 13 :
Total Pages : 121 pages
Book Rating : 4.:/5 (812 download)
Download or read book Development of a Microcontroller-based Variable Speed Induction Motor Drive Controller written by N. M. Tsang and published by . This book was released on 1988 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Marwan A. A. Badran
Publisher :
ISBN 13 :
Total Pages : 248 pages
Book Rating : 4.:/5 (957 download)
Download or read book Microcontroller-based Fuzzy Logic Speed Controller for Three-phase Induction Motor written by Marwan A. A. Badran and published by . This book was released on 2013 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: Three-phase induction motors have been used in a wide range of industry applications; since they are robust, brushless and have simple design. Furthermore, the speed of induction motor can be easily controlled by variable frequency drives. The continuous development in power electronics semiconductors came out with modern electric drives. These drives use high speed power transistors, like IGBT and MOSFET, with various switching techniques. The speed control of induction motor is important to achieve maximum torque and efficiency. In the past decades, conventional control systems, such as proportional-integral derivative (PID) controller, were applied to electric drives to control the speed of induction motor. The PID controller is not a well established control method in motor drive because of the nonlinearity of induction motor. On the other hand, the use of Fuzzy Logic Controller (FLC) improves the performance of the speed control of induction motor. In this research, a microcontroller-based fuzzy logic controller was developed. The FLC replaces the conventional PI controller to improve the speed response of the drive in order to keep the speed of the induction motor constant when the load varies within the operating range. The research also included the design and implementation of a three-phase voltage source inverter (VSI) driven by Space Vector Pulse Width Modulation (SVPWM) signal. The control system in this research was designed using Matlab/Simulink environment. The simulation included a comparison of speed response of FLC and PI controller. The input to FLC is the linguistic variable of speed error and change of speed error, while the output of FLC is the frequency fed to the inverter. The three-phase inverter was fabricated using MOSFET Hex-bridge connected to a low-pass LC-filter to smooth the inverter output voltage wave. In order to apply FLC and generate corresponding SVPWM signals a PIC16F877A microcontroller was used in the control system. The speed controller was tested using various values of input speed using simulation and experiments. The results showed the superiority of the proposed FLC over the conventional PI controller in the dynamics response of speed. The results also showed the ability of the proposed to generate a three-phase sine wave with desired frequency to control the speed of the induction motor with THD less than 5%.
Author : Ahmad Fakhruzzaman M Zawawi
Publisher :
ISBN 13 :
Total Pages : 45 pages
Book Rating : 4.:/5 (953 download)
Download or read book Development of Three Phase Induction Motor Controller written by Ahmad Fakhruzzaman M Zawawi and published by . This book was released on 2009 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt: The development of induction motor controller project is a part of three phase induction motor control system that will be designed based on microcontroller using MC68HC908MR32 integrated circuit manufactured by Motorola. This controller board is an integral part of embedded motion control series and will be interface with power circuit stage, optoisolator and emulator as one system to control a three phase induction motor speed by controlling the PWM output using microcontroller program. The controlled PWM output then will be transfer to power circuit board that consist of power inverter switching to control the speed of the three phase motor. This method is called V/F control method. This control board is equipped with overcurrent circuit sensor to detect fault for safety purpose and tachometer circuit to sense motor speed. This control board also have forward/reverse switch, start/stop switch and speed control pot.
Author : Tze Fun Chan
Publisher : John Wiley & Sons
ISBN 13 : 0470828285
Total Pages : 401 pages
Book Rating : 4.4/5 (78 download)
Download or read book Applied Intelligent Control of Induction Motor Drives written by Tze Fun Chan and published by John Wiley & Sons. This book was released on 2011-01-19 with total page 401 pages. Available in PDF, EPUB and Kindle. Book excerpt: Induction motors are the most important workhorses in industry. They are mostly used as constant-speed drives when fed from a voltage source of fixed frequency. Advent of advanced power electronic converters and powerful digital signal processors, however, has made possible the development of high performance, adjustable speed AC motor drives. This book aims to explore new areas of induction motor control based on artificial intelligence (AI) techniques in order to make the controller less sensitive to parameter changes. Selected AI techniques are applied for different induction motor control strategies. The book presents a practical computer simulation model of the induction motor that could be used for studying various induction motor drive operations. The control strategies explored include expert-system-based acceleration control, hybrid-fuzzy/PI two-stage control, neural-network-based direct self control, and genetic algorithm based extended Kalman filter for rotor speed estimation. There are also chapters on neural-network-based parameter estimation, genetic-algorithm-based optimized random PWM strategy, and experimental investigations. A chapter is provided as a primer for readers to get started with simulation studies on various AI techniques. Presents major artificial intelligence techniques to induction motor drives Uses a practical simulation approach to get interested readers started on drive development Authored by experienced scientists with over 20 years of experience in the field Provides numerous examples and the latest research results Simulation programs available from the book's Companion Website This book will be invaluable to graduate students and research engineers who specialize in electric motor drives, electric vehicles, and electric ship propulsion. Graduate students in intelligent control, applied electric motion, and energy, as well as engineers in industrial electronics, automation, and electrical transportation, will also find this book helpful. Simulation materials available for download at www.wiley.com/go/chanmotor
Author : Andrzej Trzynadlowski
Publisher : Springer Science & Business Media
ISBN 13 : 9780792394204
Total Pages : 286 pages
Book Rating : 4.3/5 (942 download)
Download or read book The Field Orientation Principle in Control of Induction Motors written by Andrzej Trzynadlowski and published by Springer Science & Business Media. This book was released on 1993-12-31 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Field Orientation Principle (FOP) constitutes a fundamental concept behind the modern technology of high-performance, vector-controlled drive systems with AC motors. The recent intense interest in these systems has been spawned by the widespread transition from DC to AC drives in industry. Induction motors, industry's traditional workhorses, are particularly well suited for FOP-based vector control. The Field Orientation Principle in Control of Induction Motors presents the FOP in a simple, easy-to-understand framework based on the space-vector dynamic model of the induction machine. Relationships between the classic phasor equivalent circuits of the motor and their vector counterparts are highlighted. A step-by-step derivation of dynamic equations of the motor provides a formal background for explanation of the basic approaches to vector control. In addition, the author presents scalar control methods for low-performance drives as an intermediate stage between uncontrolled and high-performance drives. The reader will also find a full chapter devoted to power inverters, which constitute an important component of adjustable speed AC drive systems, and a review of associated issues such as observers of motor variables, parameter estimation, adaptive tuning, and principles of the position and speed control of field-oriented induction motors. With a wealth of numerical examples and computer simulations illustrating the ideas and techniques discussed and an extensive bibliography, The Field Orientation Principle in Control of Induction Motors is a practical resource and valuable reference for researchers and students interested in motor control, power and industrial electronics, and control theory.
Author : Sarat Kumar Sahoo
Publisher : LAP Lambert Academic Publishing
ISBN 13 : 9783659125898
Total Pages : 60 pages
Book Rating : 4.1/5 (258 download)
Download or read book Speed Control of Induction Motor Using Microcontroller written by Sarat Kumar Sahoo and published by LAP Lambert Academic Publishing. This book was released on 2012 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: -- To implement speed control of induction motor. -- To implement closed loop volt per hertz technique based speed control of induction Motor using Matlab Simulink. -- To implement the above proposed model using Microcontroller (8051) -- This type of drive is suitable for applications which do not require high levels of accuracy or precision, such as pumps and fans. -- Low cost because there is no feedback device, the controlling principle offers a low cost and simple solution to controlling economical AC induction motors.
Author : Ahmed A. Zaki Diab
Publisher : Springer Nature
ISBN 13 : 9811522987
Total Pages : 95 pages
Book Rating : 4.8/5 (115 download)
Download or read book Development of Adaptive Speed Observers for Induction Machine System Stabilization written by Ahmed A. Zaki Diab and published by Springer Nature. This book was released on 2020-01-03 with total page 95 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the development of an adaptive state observer using a mathematical model to achieve high performance for sensorless induction motor drives. This involves first deriving an expression for a modified gain rotor flux observer with a parameter adaptive scheme to estimate the motor speed accurately and improve the stability and performance of sensorless vector-controlled induction motor drives. This scheme is then applied to the controls of a photovoltaic-motor water-pumping system, which results in improved dynamic performance under different operating conditions. The book also presents a robust speed controller design for a sensorless vector-controlled induction motor drive system based on H∞ theory, which overcomes the problems of the classical controller.
Author : Nguyen Phung Quang
Publisher : Springer Science & Business Media
ISBN 13 : 3540790292
Total Pages : 346 pages
Book Rating : 4.5/5 (47 download)
Download or read book Vector Control of Three-Phase AC Machines written by Nguyen Phung Quang and published by Springer Science & Business Media. This book was released on 2008-12-11 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book deals with the problem area of the vector control of the three-phase AC machines like that one of the induction motor with squirrel-cage rotor (IMSR), the permanentmagnet excited synchronous motor (PMSM) and that one of the doubly fed induction machine (DFIM) from the view of the practical development. It is primarily about the use of the IMSR as well as the PMSM in the electrical drive systems, at which the method of the field-oriented control has been successful in the practice, and about the use of the grid voltage oriented controlled DFIM in the wind power plants. After a summary of the basic structure of a field-oriented controlled three-phase AC drive, the main points of the design and of the application are explained. The detailed description of the design rules forms the main emphasis of the book. The description is expanded and made understandable by numerous formulae, pictures and diagrams. Using the basic equations, first the continuous and then the discrete machine models of the IMSR as well as of the PMSM are derived. The vectorial two-dimensional current controllers, which are designed with help of the discrete models, are treated in detail in connection with other essential problems like system boundary condition and control variable limitation. Several alternative controller configurations are introduced. The voltage vector modulation, the field orientation and the coordinate transformations are treated also from the view of the practical handling. The problems like the parameter identification, parameter adaptation and the management of machine states, which are normally regarded as abstract, are so represented that the book reader does not receive only attempts but also comprehensible solutions for his system. The practical style in the description of the design rules of the drive systems are also continued consistently for the wind power systems using the DFIM. The represented control concept is proven practically and can be regarded as pioneering for new developments. The introduced control structures of the three machine types have led to a relatively mature stage of development in the practice. Some disadvantages have nevertheless remained at these linear control concepts, which have to be cleared only with nonlinear controllers. Going out from the structural nonlinearity of the machines, the suitable nonlinear models are derived. After that, nonlinear controllers are designed on the basis of the method of the "exact linearization" which proves to be the most suitable in comparison with other methods like "backstepping-based or passivity-based designs".
Author : Obinna Anyim
Publisher : LAP Lambert Academic Publishing
ISBN 13 : 9783330333574
Total Pages : 112 pages
Book Rating : 4.3/5 (335 download)
Download or read book Fuzzy Logic Based Speed Control of Three-Phase Induction Motor Drive written by Obinna Anyim and published by LAP Lambert Academic Publishing. This book was released on 2017-06-19 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conventional controllers like the proportional integral differential (PID) would have being very effective not just for speed control alone, if not for some complexities with individually controlling its respective controllers and summing up their individual contributions to effectively yield controlled signal output. Also, for its insensitivity to changes made to model parameters which may be as a result of misrepresentation of some control variables. As a result of this, developing an intelligent based fuzzy logic controller (FLC) became eminent, and on this basis, this book is written. By varying the motor speed with input reference speed, an error signal and a feedback loop is generated. The FLC then operates on the principles of mapping with corrective measure of the error signal generated and it is regulated by sets of IF-THEN rules integrating the Mamdani fuzzy inference approach. The rules projected and formed are used to overcome the drawbacks of conventional controllers. Since induction motors are widely used in many industries today, most especially squirrel caged, an intelligent approach to the control of these motors will save cost, increase reliability and efficiency
Author : Ramkumar Rajan
Publisher :
ISBN 13 :
Total Pages : 176 pages
Book Rating : 4.:/5 (27 download)
Download or read book Development of a Microcontroller-based Speed Control System for DC Motors written by Ramkumar Rajan and published by . This book was released on 1991 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Considerations about induction motor control using electronic inversors written by and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Os motores de indução são as máquinas mais utilizadas nos acionamentos industriais elétricas devido a sua simplicidade, robustez, maior relação torque/corrente, baixa manutenção, etc. Sua aceitação e aplicação em acionamentos com velocidade variável têm sido possível com o desenvolvimento da eletrônica de potência. Atualmente, muitos acionamentos utilizam diversas técnicas para lograr o controle de velocidade por variação da freqüência da rede de alimentação, sendo que o controle vetorial é o mais comum. O presente trabalho, centra-se no estudo do desenvolvimento do motor de indução sob a aplicação do controle de velocidade, através da análise dos parâmetros necessários para realizar o dito controle na faixa de baixa velocidade, sem sensor de velocidade e/ou de posição. O trabalho inicia-se com o estudo das principais características funcionamento do motor de indução. Em seguida, a partir do modelo matemático do motor de indução, são analisados os diferentes tipos de controle de velocidade, com especial ênfase na variação da velocidade através da variação da freqüência. Finalmente, são estudados os parâmetros e métodos para o controle de velocidade sem sensor. O estudo é validado com diversas simulações realizadas no programa MatLab.
Author : Iftekhar Ahmad
Publisher :
ISBN 13 :
Total Pages : 4 pages
Book Rating : 4.:/5 (13 download)
Download or read book Variable Frequency Drive and Faults Detection Using Microcontroller written by Iftekhar Ahmad and published by . This book was released on 2014 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper will explore the benefits of VFD operation and motor protection through microcontroller while providing guidance on proper application. Variable Frequency Drives (VFDs) are the preferred method of controlling AC drive (AC motor). AC motor drives are widely used to control the speed of conveyor systems, blower speeds, pump speeds, machine tool speeds, and other applications that need variable speed with variable torque. By, VFDs can significantly reduce energy consumption and operating costs of the entire system while providing operational benefits to the owner. The circuit will take the full control of the motor and it will protect the motor from the several faults such as short-circuit, overload, and overheat, under voltage, over voltage, phase failure. The protection of induction motor with microcontroller has flexibility to switch off at the required time, monitors every fault of motor at every time and every motoring action is known through the LCD display. In our project we are using the popular 8 bit microcontroller AT89C52. It is a 40 pin microcontroller.
Author : Vinu V Das
Publisher : Springer
ISBN 13 : 3642257348
Total Pages : 900 pages
Book Rating : 4.6/5 (422 download)
Download or read book Computational Intelligence and Information Technology written by Vinu V Das and published by Springer. This book was released on 2011-12-10 with total page 900 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the proceedings of the First International Conference on Computational Intelligence and Information Technology, CIIT 2011, held in Pune, India, in November 2011. The 58 revised full papers, 67 revised short papers, and 32 poster papers presented were carefully reviewed and selected from 483 initial submissions. The papers are contributed by innovative academics and industrial experts in the field of computer science, information technology, computational engineering, mobile communication and security and offer a stage to a common forum, where a constructive dialog on theoretical concepts, practical ideas and results of the state of the art can be developed.
Author : Bimal K. Bose
Publisher : Elsevier
ISBN 13 : 008045738X
Total Pages : 935 pages
Book Rating : 4.0/5 (84 download)
Download or read book Power Electronics and Motor Drives written by Bimal K. Bose and published by Elsevier. This book was released on 2010-07-08 with total page 935 pages. Available in PDF, EPUB and Kindle. Book excerpt: Power electronics is an area of extremely important and rapidly changing technology. Technological advancements in the area contribute to performance improvement and cost reduction, with applications proliferating in industrial, commercial, residential, military and aerospace environments. This book is meant to help engineers operating in all these areas to stay up-to-date on the most recent advances in the field, as well as to be a vehicle for clarifying increasingly complex theories and mathematics. This book will be a cost-effective and convenient way for engineers to get up-to-speed on the latest trends in power electronics. The reader will obtain the same level of informative instruction as they would if attending an IEEE course or a training session, but without ever leaving the office or living room! The author is in an excellent position to offer this instruction as he teaches many such courses. Self-learning advanced tutorial, falling between a traditional textbook and a professional reference. Almost every page features either a detailed figure or a bulleted chart, accompanied by clear descriptive explanatory text.
Author : Yousef S. Ettomi Ali
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (975 download)
Download or read book Microcontroller Based Adjustable Speed Closed-loop Dc Motor Drive written by Yousef S. Ettomi Ali and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The speed control of DC motors is crucial especially in applications where precisions and protection are of importance. This work investigates and implements a microcontroller-based adjustable speed drive system for a system shunt motor. The theory of the armature voltage control algorithms in a closed loop system has been successfully implemented. An IGBT switch is used in buck configuration to control armature voltage of the motor. The PWM signal that controls the IGBT is generated from a motorola 68 HC11 microcontroller. The speed of the motor is measured by a shaft encoder and directly fed to the microcontroller along with a speed reference signal. A data acquisition routine reads the measured speed and the reference speed in digital format and generates the error value signal. The error values signal is directly fed into the proportional controller routine to commute the controller output. Finally, the controller output is used to generate a PWM, which completes the loop by controlling the switch. To protect the motor from gih current, a current monitoring routine is implemented to read the motor current through a Hall effect sensor. If the motor current is higher than its rated curent halting the PWM generation routine will stop. Experimental results obtained have supported the idea of the design. The speed of the motor could be controlled over a wide range using the dc chopper and the PWM. Employment of a microcontroller has shown a great improvement in the acceleration, speed reduction, and deceleration and over current protection of a dc motor.
Author : Max Karmazin
Publisher :
ISBN 13 :
Total Pages : 394 pages
Book Rating : 4.:/5 (81 download)
Download or read book Simplified Fuzzy Logic Controller Based Indirect Vector Control of an Induction Motor Drive written by Max Karmazin and published by . This book was released on 2003 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Scott D. Roller
Publisher :
ISBN 13 :
Total Pages : 88 pages
Book Rating : 4.:/5 (364 download)
Download or read book The Analysis, Simulation, and Implementation of Control Strategies for a Pulsewidth Modulated Induction Motor Drive written by Scott D. Roller and published by . This book was released on 1996 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: "The purpose of this research is to analyze, simulate, and compare two different control strategies for a variable speed pulsewidth modulated induction motor drive, and implement one of the control strategies using the Motorola MC68F333 microcontroller. The two strategies examined in this technical report are volts per hertz control and field oriented control. The benefits and limitations of each strategy are examined through theoretical analysis. Verification of the analysis is performed by simulating the strategies using the Simulink toolbox of Matlab. The Motorola microcontroller is then used to generate both edge- aligned and center-aligned pulsewidth modulated drive signals for a three phase voltage-source inverter while operating under volts per hertz control. Finally, a spectra analysis of each PWM drive signal is determined and the harmonic content of each signal is compared to the harmonic content of the classical sine-modulated PWM drive signal."
