High Performance Sensorless Induction Motor Drive
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High Performance Sensorless Induction Motor Drive
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Author : Jogendra Singh Thongam
language : en
Publisher: LAP Lambert Academic Publishing
Release Date : 2010-08
High Performance Sensorless Induction Motor Drive written by Jogendra Singh Thongam and has been published by LAP Lambert Academic Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-08 with categories.
Sensors, widely used in electric drives, degrade the system reliability and require special attention to electrical noise in addition to extra expenses involved. Further, drive performance is affected by unknown rotor resistance variation which causes incorrect decoupling of flux and torque currents leading to deterioration of its performance. This book focusses on the development of high performance sensorless induction motor drive. Sensorless vector control is realized by developing rotor flux and speed estimation algorithms using only the measurable stator terminal quantities: the current and voltage. Whereas, in another approach, sensorless control is realized by developing simultaneous speed and rotor resistance estimation algorithm without requiring any external signal injection. Reduced order observers are used for implementing estimation algorithms to reduce computational burden. This work can be a good resource and reference for researchers and graduate students interested in the area of sensorless induction motor drive and control theory applications. The work will also be useful to undergraduate students wishing to have an overall idea of induction motor drive control.
High Performance Sensorless Induction Motor Drive
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Author : Jogendra Singh Thongam
language : en
Publisher:
Release Date : 2006
High Performance Sensorless Induction Motor Drive written by Jogendra Singh Thongam and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Electric driving categories.
High Performance Sensorless Vector Of Induction Motor Drives
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Author : Ramon Blasco Gimenez
language : en
Publisher:
Release Date : 1995
High Performance Sensorless Vector Of Induction Motor Drives written by Ramon Blasco Gimenez and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with categories.
Development Of Adaptive Speed Observers For Induction Machine System Stabilization
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Author : Ahmed A. Zaki Diab
language : en
Publisher: Springer Nature
Release Date : 2020-01-03
Development Of Adaptive Speed Observers For Induction Machine System Stabilization written by Ahmed A. Zaki Diab and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-01-03 with Technology & Engineering categories.
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.
High Performance Sensorless Vector Control Of Induction Motor Drives
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Author : Ramon Blasco Gimenez
language : en
Publisher:
Release Date : 1995
High Performance Sensorless Vector Control Of Induction Motor Drives written by Ramon Blasco Gimenez and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with categories.
High Performance Ac Drives
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Author : Mukhtar Ahmad
language : en
Publisher: Springer Science & Business Media
Release Date : 2010-09-08
High Performance Ac Drives written by Mukhtar Ahmad and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-09-08 with Technology & Engineering categories.
Variable speed is one of the important requirements in most of the electric drives. Earlier dc motors were the only drives that were used in industries requiring - eration over a wide range of speed with step less variation, or requiring fine ac- racy of speed control. Such drives are known as high performance drives. AC - tors because of being highly coupled non-linear devices can not provide fast dynamic response with normal controls. However, recently, because of ready availability of power electronic devices, and digital signal processors ac motors are beginning to be used for high performance drives. Field oriented control or vector control has made a fundamental change with regard to dynamic perfo- ance of ac machines. Vector control makes it possible to control induction or s- chronous motor in a manner similar to control scheme used for the separately - cited dc motor. Recent advances in artificial intelligence techniques have also contributed in the improvement in performance of electric drives. This book presents a comprehensive view of high performance ac drives. It may be considered as both a text book for graduate students and as an up-to-date monograph. It may also be used by R & D professionals involved in the impro- ment of performance of drives in the industries. The book will also be beneficial to the researchers pursuing work on sensorless and direct torque control of electric drives as up-to date references in these topics are provided.
Sensorless Vector And Direct Torque Control
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Author : Peter Vas
language : en
Publisher: Oxford, [Eng.] ; New York : Oxford University Press
Release Date : 1998
Sensorless Vector And Direct Torque Control written by Peter Vas and has been published by Oxford, [Eng.] ; New York : Oxford University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Mathematics categories.
This is the first comprehensive book on sensorless high performance a.c. drives. It is essential reading for anyone interestred in acquiring a solid background on sensorless torque-controlled drives. It presents a detailed and unified treatment of sensorless vector-controlled and direct-torque controlled drive systems. It also discusses the applications of artificial intelligence to drives. Where possible, space vector theory is used and emphasis is laid on detailed mathematical and physical analysis. Sensorless drive schemes for different types of permanent magnet synchronous motors, synchronous reluctance motors, and induction motors are also presented. These include more than twenty vector drives e.g. five types of MRAS-based vector drives, and eleven types of direct-torque-controlled (DTC) drives, e.g. the ABB DTC drive. However, torque-controlled switched reluctance motor drives are also discussed due to their emerging importance. The book also covers various drive applications using artificial intelligence (fuzzy logic, neural networks, fuzzy-neural networks) and AI-based modelling of electrical machines. Finally, self-commissioning techniques are also discussed. This is a comprehensive thoroughly up-to-date, and self-contained book suitable for students at various levels, teachers, and industrial readership. Peter Vas is a Professor at the Department of Engineering at the University of Aberdeen, UK, where he is also the Head of the Intelligent Motion Control Group. His previous books published by Oxford University Press are extensively used worldwide.
Self Commissioning Of Sensorless Ac Motor Drives
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Author : Feyzullah Erturk
language : en
Publisher:
Release Date : 2019
Self Commissioning Of Sensorless Ac Motor Drives written by Feyzullah Erturk and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with Automobiles categories.
For higher energy efficiency and greater motion control flexibility, inverters are used to drive electric motors. High-performance operation of motor drives requires complicated control algorithms and corresponding motor parameter information. Nonetheless, the users may not have the required skills or tools to obtain accurate motor data for high-performance control. Therefore, it is necessary for commercial motor drives to have highly accurate self-commissioning capability. The motor drive parameters obtained by self-commissioning are essential to design the current and speed controllers; high-frequency signal injection based sensorless control, observer-based sensorless control, and energy efficiency improvement schemes such as maximum torque per ampere (MTPA) control. Yet, established self-commissioning methods are not mature enough to provide self-sufficient, robust, and complete solution and also to fully cover newly emerging motor types such as interior permanent-magnet synchronous motors. In order to improve them, the dissertation focuses on a comprehensive study on the end-to-end selfcommissioning of general-purpose industrial sensorless ac motor drives. The dissertation targets full coverage of all motor drive parameters in a self-sufficient way through step-by-step estimation of the relevant parameters. The proposed parameter estimation methods are applicable to all AC motor types whenever the motor nature allows so. First of all, a novel method for spatial inductance map identification is proposed to estimate relevant inductance values which is used to tune the current controller. This method uses open loop voltage injection with automatic selection of injection amplitude and frequency and does not need rotor position information. After current-loop auto-tuning, a precise and robust method for initial rotor position is presented for synchronous motors. Later, estimation methods for stator resistance and saturated inductances are provided for all AC motors. Also, the nature of induction motor introduces unique difficulties in the standstill estimation of magnetizing inductance and rotor resistance. Existing traditional methods of low-frequency current injection and flux integration are not successful enough to provide robust results that can be replicated in many different motorinverter pairs. A simple novel method that makes use of the redundancy of resistive drops during dc-magnetization of the motor is presented to solve to these difficulties. Upon finishing stationary tests, rotational test is required for the estimation of mechanical parameters. Inertia estimation and consequent speed-loop auto-tuning has some challenges such as automatic test torque selection satisfying most of the practical conditions with varying mechanical inertia and loads, creating controlled speed oscillations, and robust signal detection during the test. This dissertation proposes novel solutions to these. Overall, this dissertation proposes an end-to-end, self-sufficient, and robust solution for self-commissioning of sensorless industrial AC drives.
High Performance Control Of Ac Drives With Matlab Simulink
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Author : Haitham Abu-Rub
language : en
Publisher: John Wiley & Sons
Release Date : 2021-04-06
High Performance Control Of Ac Drives With Matlab Simulink written by Haitham Abu-Rub and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-04-06 with Science categories.
High Performance Control of AC Drives with Matlab®/Simulink Explore this indispensable update to a popular graduate text on electric drive techniques and the latest converters used in industry The Second Edition of High Performance Control of AC Drives with Matlab®/Simulink delivers an updated and thorough overview of topics central to the understanding of AC motor drive systems. The book includes new material on medium voltage drives, covering state-of-the-art technologies and challenges in the industrial drive system, as well as their components, and control, current source inverter-based drives, PWM techniques for multilevel inverters, and low switching frequency modulation for voltage source inverters. This book covers three-phase and multiphase (more than three-phase) motor drives including their control and practical problems faced in the field (e.g., adding LC filters in the output of a feeding converter), are considered. The new edition contains links to Matlab®/Simulink models and PowerPoint slides ideal for teaching and understanding the material contained within the book. Readers will also benefit from the inclusion of: A thorough introduction to high performance drives, including the challenges and requirements for electric drives and medium voltage industrial applications An exploration of mathematical and simulation models of AC machines, including DC motors and squirrel cage induction motors A treatment of pulse width modulation of power electronic DC-AC converter, including the classification of PWM schemes for voltage source and current source inverters Examinations of harmonic injection PWM and field-oriented control of AC machines Voltage source and current source inverter-fed drives and their control Modelling and control of multiphase motor drive system Supported with a companion website hosting online resources. Perfect for senior undergraduate, MSc and PhD students in power electronics and electric drives, High Performance Control of AC Drives with Matlab®/Simulink will also earn a place in the libraries of researchers working in the field of AC motor drives and power electronics engineers in industry.
On Sensorless Control Of Induction Motor Drives
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Author : Ove Glenberg
language : en
Publisher: LAP Lambert Academic Publishing
Release Date : 2010-07
On Sensorless Control Of Induction Motor Drives written by Ove Glenberg and has been published by LAP Lambert Academic Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-07 with Electric motors, Induction categories.
In high - demanding ac drives as for example traction applications, usually, an encoder or speedsensor is needed on the rotorshaft. Replacing this sensor with speed estimation may result in lower costs and maintenance demands due to one less critical component in the system. By estimating the speed instead of measuring it is called sensorless control. The topic in this book is senorless control adopted on the induction machine (IM). Research in the area sensorless control is wide and especially control problems at low speed has been an interesting problem to solve. In this book the focusing topic is 0 Hz crossover problems, which occurs as the machine alters between motoring and regenerating drive. As sensorless control method a rotorflux estimator is adopted in a vector controlled scheme by the so - called voltage model (VM). The VM design is used for estimating the frequency by measured stator voltages and currents. The analysis here mainly considers parameter variations and instability problems, which are two important reasons for control problems at low speed. The proposed final method shows good performance both by linear and nonlinear analysis methods.