November 27, 2020

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Permanent Magnet Brushless DC Motor Drives and Controls

Permanent Magnet Brushless DC Motor Drives and Controls
Author : Chang-liang Xia
Publisher : John Wiley & Sons
Release Date : 2012-04-24
Category : Technology & Engineering
Total pages :320
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An advanced introduction to the simulation and hardwareimplementation of BLDC motor drives A thorough reference on the simulation and hardwareimplementation of BLDC motor drives, this book covers recentadvances in the control of BLDC motor drives, including intelligentcontrol, sensorless control, torque ripple reduction and hardwareimplementation. With the guidance of the expert author team,readers will understand the principle, modelling, design andcontrol of BLDC motor drives. The advanced control methods and newachievements of BLDC motor drives, of interest to more advancedreaders, are also presented. Focuses on the control of PM brushlessDC motors, giving readers the foundations to the topic that theycan build on through more advanced reading Systematically guides readers through the subject, introducingbasic operational principles before moving on to advanced controlalgorithms and implementations Covers special issues, such as sensorless control, intelligentcontrol, torque ripple reduction and hardware implementation, whichalso have applications to other types of motors Includes presentation files with lecture notes and Matlab 7coding on a companion website for the book

Permanent Magnet Synchronous and Brushless DC Motor Drives

Permanent Magnet Synchronous and Brushless DC Motor Drives
Author : Ramu Krishnan
Publisher : CRC Press
Release Date : 2009-09-25
Category : Technology & Engineering
Total pages :611
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Despite two decades of massive strides in research and development on control strategies and their subsequent implementation, most books on permanent magnet motor drives still focus primarily on motor design, providing only elementary coverage of control and converters. Addressing that gap with information that has largely been disseminated only in journals and at conferences, Permanent Magnet Synchronous and Brushless DC Motor Drives is a long-awaited comprehensive overview of power electronic converters for permanent magnet synchronous machines and control strategies for variable-speed operation. It introduces machines, power devices, inverters, and control, and addresses modeling, implementation, control strategies, and flux weakening operations, as well as parameter sensitivity, and rotor position sensorless control. Suitable for both industrial and academic audiences, this book also covers the simulation, low cost inverter topologies, and commutation torque ripple of PM brushless DC motor drives. Simulation of the motor drives system is illustrated with MATLAB® codes in the text. This book is divided into three parts—fundamentals of PM synchronous and brushless dc machines, power devices, inverters; PM synchronous motor drives, and brushless dc motor drives. With regard to the power electronics associated with these drive systems, the author: Explores use of the standard three-phase bridge inverter for driving the machine, power factor correction, and inverter control Introduces space vector modulation step by step and contrasts with PWM Details dead time effects in the inverter, and its compensation Discusses new power converter topologies being considered for low-cost drive systems in PM brushless DC motor drives This reference is dedicated exclusively to PM ac machines, with a timely emphasis on control and standard, and low-cost converter topologies. Widely used for teaching at the doctoral level and for industrial audiences both in the U.S. and abroad, it will be a welcome addition to any engineer’s library.

BLDC Machines

BLDC Machines
Author : Marcin Baszynski
Publisher : Academic Press
Release Date : 2021-07-15
Category : Technology & Engineering
Total pages :248
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BLDC Machines comprehensively reviews the governing principles and operational implementation of the popular drive system, particularly focusing on rotor design and control system implementation in DSP and FPGA. The book exhaustively reviews the structure, principles of operation and the mathematical modeling of BLDC motors. It reviews current methods to connect windings, including star, delta, and open-end winding, and discusses relevant control methods involved. For each winding connection, their influence on the engine's properties is discussed in depth. Thereafter, methods of detection points of commutation are discussed for both sensor and sensorless motors, and ways to determine the correctness of commutation moments based on the current shape are reviewed. Finally, the problem of rotational speed estimation and methods of implementing a closed control system are evaluated. Explores the latest trends in the rotor design and construction of BLDC machines Evaluates advanced practice in control system implementation of brushless direct current systems Reviews BLDC engine modeling and implementation in MATLAB

Electric Motor Control

Electric Motor Control
Author : Sang-Hoon Kim
Publisher : Elsevier
Release Date : 2017-05-09
Category : Science
Total pages :438
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Electric Motor Control: DC, AC, and BLDC Motors introduces practical drive techniques of electric motors to enable stable and efficient control of many application systems, also covering basic principles of high-performance motor control techniques, driving methods, control theories and power converters. Electric motor drive systems play a critical role in home appliances, motor vehicles, robotics, aerospace and transportation, heating ventilating and cooling equipment’s, robotics, industrial machinery and other commercial applications. The book provides engineers with drive techniques that will help them develop motor drive system for their applications. Includes practical solutions and control techniques for industrial motor drive applications currently in use Contains MATLAB/Simulink simulation files Enables engineers to understand the applications and advantages of electric motor drive systems

Practical Control of Electric Machines

Practical Control of Electric Machines
Author : Rubén Molina Llorente
Publisher : Springer Nature
Release Date : 2020-03-20
Category : Technology & Engineering
Total pages :622
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This book presents deep analysis of machine control for different applications, focusing on its implementation in embedded systems. Necessary peripherals for various microcontroller families are analysed for machine control and software architecture patterns for high-quality software development processes in motor control units are described. Abundant figures help the reader to understand the theoretical, simulation and practical implementation stages of machine control. Model-based design, used as a mathematical and visual approach to construction of complex control algorithms, code generation that eliminates hand-coding errors, and co-simulation tools such as Simulink, PSIM and finite element analysis are discussed. The simulation and verification tools refine, and retest the models without having to resort to prototype construction. The book shows how a voltage source inverter can be designed with tricks, protection elements, and space vector modulation. Practical Control of Electric Machines: Model-Based Design and Simulation is based on the author’s experience of a wide variety of systems in domestic, automotive and industrial environments, and most examples have implemented and verified controls. The text is ideal for readers looking for an insight into how electric machines play an important role in most real-life applications of control. Practitioners and students preparing for a career in control design applied in electric machines will benefit from the book’s easily understood theoretical approach to complex machine control. The book contains mathematics appropriate to various levels of experience, from the student to the academic and the experienced professional. Advances in Industrial Control reports and encourages the transfer of technology in control engineering. The rapid development of control technology has an impact on all areas of the control discipline. The series offers an opportunity for researchers to present an extended exposition of new work in all aspects of industrial control.

Brushless Permanent Magnet Motor Design

Brushless Permanent Magnet Motor Design
Author : Duane C. Hanselman
Publisher : Magna Physics Pub
Release Date : 2006-01-01
Category : Technology & Engineering
Total pages :392
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Performance Analysis of Brushless DC Machines with Axially Displaceable Rotor

Performance Analysis of Brushless DC Machines with Axially Displaceable Rotor
Author : Emine Bostanci
Publisher : Unknown
Release Date : 2014-07-29
Category :
Total pages :179
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In this study, a mechanical field weakening method that is applied to enhance the high-speed performance of a PM brushless machine by reducing the active axial machine length is analyzed in terms of its operational characteristics and efficiency. For this purpose, an existing multi-phase brushless DC (BLDC) machine with an axially displaceable rotor is used. First, the parameters of this machine, such as back EMF, torque constant and phase inductances are determined for various axial rotor positions by using 2-D and 3-D FEM analyses. Then, the determined machine parameters are used to build a dynamic simulation model of the drive system. By using this developed system model, the operational characteristics including the limits of the mechanical field weakening method are analyzed. In the second place, the efficiency of the BLDC machine is investigated, laying the main focus of attention on the additional losses in the field weakening range. In order to determine these losses, new numerical and measurement methods are developed. Furthermore, the measurement results are used to validate the numerical results. Finally, recommendations for PM brushless machines with an axially displaceable stator/rotor including possible design measures to reduce the additional losses and the application of mechanical field weakening are presented.

Axial Flux Permanent Magnet Brushless Machines

Axial Flux Permanent Magnet Brushless Machines
Author : Jacek F. Gieras,Rong-Jie Wang,Maarten J. Kamper
Publisher : Springer Science & Business Media
Release Date : 2008-03-26
Category : Technology & Engineering
Total pages :362
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Axial Flux Permanent Magnet (AFPM) brushless machines are modern electrical machines with a lot of advantages over their conventional counterparts. This timeless and revised second edition deals with the analysis, construction, design, control and applications of AFPM machines. The authors present their own research results, as well as significant research contributions made by others.

Brushless Motors and Controllers

Brushless Motors and Controllers
Author : Roland Büchi
Publisher : BoD – Books on Demand
Release Date : 2012
Category :
Total pages :132
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In recent years, brushless DC motors and controllers have begun an unparalleled triumph in model construction and in all technical fields. This book is intended to show how a brushless motor works. The basic principle is discussed first, before all the key terms such as kV and rpm/V, operating voltage, load and idle current, torque, turns, electrical and mechanical power, losses, efficiency, etc. are explained. A brushless motor can't work without a brushless controller, it requires a three-phase AC voltage. To increase the speed properly, the controller must have information on the rotor position. This can be done by Hall sensors or directly via the motor windings. All that will be taken into account in the book.

SPECIAL ELECTRICAL MACHINES

SPECIAL ELECTRICAL MACHINES
Author : E.G. JANARDANAN
Publisher : PHI Learning Pvt. Ltd.
Release Date : 2014-01-01
Category : Technology & Engineering
Total pages :280
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This book covers the complete syllabi prescribed for undergraduate courses in electrical, electronics, mechanical and instrumentation engineering offered by various Indian universities. The objective of this text is to provide thorough knowledge in the emerging field of special electrical machines. It discusses the stepper motor, switched reluctance motor, permanent magnet dc and ac motors, brushless dc motors, single phase special electric motors, servomotors, linear electric machines and permanent magnet axial flux machines. Key Features • Chapter on permanent magnet axial flux machines (not available in other Indian authors' books) • Numerous worked-out examples • Based on classroom tested materials • Simplified mathematical analysis Besides undergraduate students, the book will also be useful to the postgraduate students specialising in drives and control, power electronics, control systems and mechatronics.

Design of Rotating Electrical Machines

Design of Rotating Electrical Machines
Author : Juha Pyrhonen,Tapani Jokinen,Valeria Hrabovcova
Publisher : John Wiley & Sons
Release Date : 2013-09-26
Category : Technology & Engineering
Total pages :616
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In one complete volume, this essential reference presents an in-depth overview of the theoretical principles and techniques of electrical machine design. This timely new edition offers up-to-date theory and guidelines for the design of electrical machines, taking into account recent advances in permanent magnet machines as well as synchronous reluctance machines. New coverage includes: Brand new material on the ecological impact of the motors, covering the eco-design principles of rotating electrical machines An expanded section on the design of permanent magnet synchronous machines, now reporting on the design of tooth-coil, high-torque permanent magnet machines and their properties Large updates and new material on synchronous reluctance machines, air-gap inductance, losses in and resistivity of permanent magnets (PM), operating point of loaded PM circuit, PM machine design, and minimizing the losses in electrical machines> End-of-chapter exercises and new direct design examples with methods and solutions to real design problems> A supplementary website hosts two machine design examples created with MATHCAD: rotor surface magnet permanent magnet machine and squirrel cage induction machine calculations. Also a MATLAB code for optimizing the design of an induction motor is provided Outlining a step-by-step sequence of machine design, this book enables electrical machine designers to design rotating electrical machines. With a thorough treatment of all existing and emerging technologies in the field, it is a useful manual for professionals working in the diagnosis of electrical machines and drives. A rigorous introduction to the theoretical principles and techniques makes the book invaluable to senior electrical engineering students, postgraduates, researchers and university lecturers involved in electrical drives technology and electromechanical energy conversion.

Detection of Rotor and Load Faults in BLDC Motors Operating Under Stationary and Non-stationary Conditions

Detection of Rotor and Load Faults in BLDC Motors Operating Under Stationary and Non-stationary Conditions
Author : Satish Rajagopalan
Publisher : Unknown
Release Date : 2006
Category : Brushless direct current electric motors
Total pages :129
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Brushless Direct Current (BLDC) motors are one of the motor types rapidly gaining popularity. BLDC motors are being increasingly used in critical high performance industries such as appliances, automotive, aerospace, consumer, medical, industrial automation equipment and instrumentation. Fault detection and condition monitoring of BLDC machines is therefore assuming a new importance. The objective of this research is to advance the field of rotor and load fault diagnosis in BLDC machines operating in a variety of operating conditions ranging from constant speed to continuous transient operation. This objective is addressed as three parts in this research. The first part experimentally characterizes the effects of rotor faults in the stator current and voltage of the BLDC motor. This helps in better understanding the behavior of rotor defects in BLDC motors. The second part develops methods to detect faults in loads coupled to BLDC motors by monitoring the stator current. As most BLDC applications involve non-stationary operating conditions, the diagnosis of rotor faults in non-stationary conditions forms the third and most important part of this research. Several signal processing techniques are reviewed to analyze non-stationary signals. Three new algorithms are proposed that can track and detect rotor faults in non-stationary or transient current signals.

Development of a Brushless Dc Motor for Satellite Application

Development of a Brushless Dc Motor for Satellite Application
Author : Philip A. Studer
Publisher : Unknown
Release Date : 1964
Category : Artificial satellites
Total pages :10
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Electric Machines for Smart Grids Applications

Electric Machines for Smart Grids Applications
Author : Adel El-Shahat
Publisher : BoD – Books on Demand
Release Date : 2018-12-12
Category : Technology & Engineering
Total pages :270
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In this book, highly qualified scientists present their recent research motivated by the importance of electric machines. It addresses advanced studies for high-speed electrical machine design, mechanical design of rotors with surface-mounted permanent magnets, design of motor drive for brushless DC motor, single-phase motors for household applications, battery electric propulsion systems for competition racing applications, robust diagnosis by observer using the bond graph approach, a DC motor simulator based on virtual instrumentation, start-up of a PID fuzzy logic embedded control system for the speed of a DC motor using LabVIEW, advanced control of the permanent magnet synchronous motor and optimization of fuzzy logic controllers by particle swarm optimization to increase the lifetime in power electronic stages.

Direct Back EMF Detection Method for Sensorless Brushless DC (BLDC) Motor Drives

Direct Back EMF Detection Method for Sensorless Brushless DC (BLDC) Motor Drives
Author : Anonim
Publisher : Unknown
Release Date : 2003
Category :
Total pages :129
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Brushlesss dc (BLDC) motors and their drives are penetrating the market of home appliances, HVAC industry, and automotive applications in recent years because of their high efficiency, silent operation, compact form, reliability, and low maintenance. Traditionally, BLDC motors are commutated in six-step pattern with commutation controlled by position sensors. To reduce cost and complexity of the drive system, sensorless drive is preferred. The existing sensorless control scheme with the conventional back EMF sensing based on motor neutral voltage for BLDC has certain drawbacks, which limit its applications. In this thesis, a novel back EMF sensing scheme, direct back EMF detection, for sensorless BLDC drives is presented. For this scheme, the motor neutral voltage is not needed to measure the back EMFs. The true back EMF of the floating motor winding can be detected during off time of PWM because the terminal voltage of the motor is directly proportional to the phase back EMF during this interval. Also, the back EMF voltage is referenced to ground without any common mode noise. Therefore, this back EMF sensing method is immune to switching noise and common mode voltage. As a result, there are no attenuation and filtering necessary for the back EMFs sensing.