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Automating The Transition Between Sensorless Motor Control Methods For The Nasa Glenn Research Center Flywheel Energy Storage System
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Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781721672134 Total Pages :28 pages Book Rating :4.6/5 (721 download)
Book Synopsis Automating the Transition Between Sensorless Motor Control Methods for the NASA Glenn Research Center Flywheel Energy Storage System by : National Aeronautics and Space Administration (NASA)
Download or read book Automating the Transition Between Sensorless Motor Control Methods for the NASA Glenn Research Center Flywheel Energy Storage System written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-21 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: The NASA Glenn Research Center (GRC) has been working to advance the technology necessary for a flywheel energy storage system for the past several years. Flywheels offer high efficiency, durability, and near-complete discharge capabilities not produced by typical chemical batteries. These characteristics show flywheels to be an attractive alternative to the more typical energy storage solutions. Flywheels also offer the possibility of combining what are now two separate systems in space applications into one: energy storage, which is currently provided by batteries, and attitude control, which is currently provided by control moment gyroscopes (CMGs) or reaction wheels. To date, NASA Glenn research effort has produced the control algorithms necessary to demonstrate flywheel operation up to a rated speed of 60,000 RPM and the combined operation of two flywheel machines to simultaneously provide energy storage and single axis attitude control. Two position-sensorless algorithms are used to control the motor/generator, one for low (0 to 1200 RPM) speeds and one for high speeds. The algorithm allows the transition from the low speed method to the high speed method, but the transition from the high to low speed method was not originally included. This leads to a limitation in the existing motor/generator control code that does not allow the flywheels to be commanded to zero speed (and back in the negative speed direction) after the initial startup. In a multi-flywheel system providing both energy storage and attitude control to a spacecraft, speed reversal may be necessary. Fehrmann, Elizabeth A. and Kenny, Barbara H. Glenn Research Center NASA/TM-2004-213295, E-14742, AIAA Paper 2004-5602
Book Synopsis Simulation of Flywheel Energy Storage System Controls by :
Download or read book Simulation of Flywheel Energy Storage System Controls written by and published by . This book was released on 2001 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Filtering and Control of High Speed Motor Current in a Flywheel Energy Storage System by : Barbara H. Kenny
Download or read book Filtering and Control of High Speed Motor Current in a Flywheel Energy Storage System written by Barbara H. Kenny and published by BiblioGov. This book was released on 2013-06 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: The NASA Glenn Research Center has been developing technology to enable the use of high speed flywheel energy storage units in future spacecraft for the last several years. An integral part of the flywheel unit is the three phase motor/generator that is used to accelerate and decelerate the flywheel. The motor/generator voltage is supplied from a pulse width modulated (PWM) inverter operating from a fixed DC voltage supply. The motor current is regulated through a closed loop current control that commands the necessary voltage from the inverter to achieve the desired current. The current regulation loop is the innermost control loop of the overall flywheel system and, as a result, must be fast and accurate over the entire operating speed range (20,000 to 60,000 rpm) of the flywheel. The voltage applied to the motor is a high frequency PWM version of the DC bus voltage that results in the commanded fundamental value plus higher order harmonics. Most of the harmonic content is at the switching frequency and above. The higher order harmonics cause a rapid change in voltage to be applied to the motor that can result in large voltage stresses across the motor windings. In addition, the high frequency content in the motor causes sensor noise in the magnetic bearings that leads to disturbances for the bearing control. To alleviate these problems, a filter is used to present a more sinusoidal voltage to the motor/generator. However, the filter adds additional dynamics and phase lag to the motor system that can interfere with the performance of the current regulator. This paper will discuss the tuning methodology and results for the motor/generator current regulator and the impact of the filter on the control. Results at speeds up to 50,000 rpm are presented.
Book Synopsis Sensorless Control of a Brushless Dc Motor Coupled to a Flywheel by : Runyararo Dikinya
Download or read book Sensorless Control of a Brushless Dc Motor Coupled to a Flywheel written by Runyararo Dikinya and published by LAP Lambert Academic Publishing. This book was released on 2012-03 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Brushless direct current (dc) motors serve as an important tool in flywheel energy storage systems. Thus, finding techniques that improve their performance will enable efficient flywheel energy storage capabilities. In this book, sensorless methods involving back electromagnetic force (EMF) of the motor are investigated and their feasibility simulated and tested. The motor is coupled to a flywheel and storing energy from solar panels.
Book Synopsis Kinetic Energy Storage by : G. Genta
Download or read book Kinetic Energy Storage written by G. Genta and published by Butterworth-Heinemann. This book was released on 2014-04-24 with total page 381 pages. Available in PDF, EPUB and Kindle. Book excerpt: Kinetic Energy Storage: Theory and Practice of Advanced Flywheel Systems focuses on the use of flywheel systems in storing energy. The book first gives an introduction to the use of flywheels, including prehistory to the Roman civilization, Christian era to the industrial revolution, and middle of the 19th century to 1960. The text then examines the application of flywheel energy storage systems. Basic parameters and definitions, advantages and disadvantages, economic considerations, road vehicle applications, and applications for fixed machines are considered. The book also evaluates the flywheel, including materials, radial bar and filament flywheel, composite material disc flywheel, rotor stress analysis, and flywheel testing. The text also discusses housing and vacuum systems and flywheel suspension and transmission systems. Aerodynamic drag on wheels, burst containment, types of bearings, rotor dynamics, dampers, and types of transmissions are described. The text is a vital source of information for readers wanting to explore the composition and functions of flywheels.
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781721641499 Total Pages :28 pages Book Rating :4.6/5 (414 download)
Book Synopsis Free-Piston Stirling Convertor Controller Development at NASA Glenn Research Center by : National Aeronautics and Space Administration (NASA)
Download or read book Free-Piston Stirling Convertor Controller Development at NASA Glenn Research Center written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-21 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: The free-piston Stirling convertor end-to-end modeling effort at NASA Glenn Research Center (GRC) has produced a software-based test bed in which free-piston Stirling convertors can be simulated and evaluated. The simulation model includes all the components of the convertor - the Stirling cycle engine, linear alternator, controller, and load. This paper is concerned with controllers. It discusses three controllers that have been studied using this model. Case motion has been added to the model recently so that effects of differences between convertor components can be simulated and ameliorative control engineering techniques can be developed. One concern when applying a system comprised of interconnected mass-spring-damper components is to prevent operation in any but the intended mode. The design mode is the only desired mode of operation, but all other modes are considered in controller design. Regan, Timothy Glenn Research Center NASA/CR-2004-213038, AIAA Paper 2003-5931, NAS 1.26:213038, E-14466
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781721572878 Total Pages :38 pages Book Rating :4.5/5 (728 download)
Book Synopsis A Programmable System for Motion Control by : National Aeronautics and Space Administration (NASA)
Download or read book A Programmable System for Motion Control written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-20 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: The need for improved flow measurements in the flow path of aeronautics testing facilities has led the NASA Glenn Research Center to develop a new motion control system. The new system is programmable, offering a flexibility unheard of in previous systems. The motion control system is PLC-based, which leads to highly accurate positioning ability, as well as reliability. The user interface is a software-based HMI package, which also adds flexibility to the overall system. The system also has the ability to create and execute motion profiles. This paper discusses the system's operation, control implementation, and experiences. Nowlin, Brent C. Glenn Research Center NASA/TM-2003-212377, E-13954, NAS 1.15:212377
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781721521906 Total Pages :26 pages Book Rating :4.5/5 (219 download)
Book Synopsis Estimator Based Controller for High Speed Flywheel Magnetic Bearing System by : National Aeronautics and Space Administration (NASA)
Download or read book Estimator Based Controller for High Speed Flywheel Magnetic Bearing System written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-19 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: A flywheel system and its operator interface are described. Measurements of magnetic bearing negative stiffness are performed. Two digital magnetic bearing control algorithms (PD and estimator based) are defined and their implementations are described. Tuning of each controller is discussed. Comparison of the two controllers' stability, damping noise, and operating current are described. Results describing the superiority of the estimator-based controller are presented and discussed. Dever, Timothy P. and Brown, Gerald V. and Jansen, Ralph H. Glenn Research Center NASA/TM-2002-211795, NAS 1.15:211795, IECEC-2002-20161, E-13490
Book Synopsis Position Sensorless Control Techniques for Permanent Magnet Synchronous Machine Drives by : Gaolin Wang
Download or read book Position Sensorless Control Techniques for Permanent Magnet Synchronous Machine Drives written by Gaolin Wang and published by Springer. This book was released on 2020-11-25 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book focuses on position sensorless control for PMSM drives, addressing both basic principles and experimental evaluation. It provides an in-depth study on a number of major topics, such as model-based sensorless control, saliency-based sensorless control, position estimation error ripple elimination and acoustic noise reduction. Offering a comprehensive and systematic overview of position sensorless control and practical issues it is particularly suitable for readers interested in the sensorless control techniques for PMSM drives. The book is also a valuable resource for researchers, engineers, and graduate students in fields of ac motor drives and sensorless control.
Book Synopsis Integrated Flywheel Technology, 1983 by : Claude R. Keckler
Download or read book Integrated Flywheel Technology, 1983 written by Claude R. Keckler and published by . This book was released on 1983 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Low-cost Flywheel Energy Storage Demonstration by : Seth Sanders
Download or read book Low-cost Flywheel Energy Storage Demonstration written by Seth Sanders and published by . This book was released on 2015 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Kinetic Energy Storage by : Giancarlo Genta
Download or read book Kinetic Energy Storage written by Giancarlo Genta and published by Butterworth-Heinemann. This book was released on 1985-01-01 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: Design, applications and economics of flywheel systems.
Book Synopsis Implementation and Design of a Flywheel Energy Storage System Controller by : Joseph Thomas Hays
Download or read book Implementation and Design of a Flywheel Energy Storage System Controller written by Joseph Thomas Hays and published by . This book was released on 1997 with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Parameter Design and Optimal Control of an Open Core Flywheel Energy Storage System by : Da-Chen Pang
Download or read book Parameter Design and Optimal Control of an Open Core Flywheel Energy Storage System written by Da-Chen Pang and published by . This book was released on 1996 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Applied Control of Electrical Drives by : Duco W. J. Pulle
Download or read book Applied Control of Electrical Drives written by Duco W. J. Pulle and published by Springer. This book was released on 2018-03-30 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: · Provides an overall understanding of all aspects of AC electrical drives, from the motor and converter to the implemented control algorithm, with minimum mathematics needed · Demonstrates how to implement and debug electrical drive systems using a set of dedicated hardware platforms, motor setup and software tools in VisSimTM and PLECSTM · No expert programming skills required, allowing the reader to concentrate on drive development · Enables the reader to undertake real-time control of a safe (low voltage) and low cost experimental drive This book puts the fundamental and advanced concepts behind electric drives into practice. Avoiding involved mathematics whenever practical, this book shows the reader how to implement a range of modern day electrical drive concepts, without requiring in depth programming skills. It allows the user to build and run a series of AC drive concepts, ranging from very basic drives to sophisticated sensorless drives. Hence the book is the only modern resource available that bridges the gap between simulation and the actual experimental environment. Engineers who need to implement an electrical drive, or transition from sensored to sensorless drives, as well as students who need to understand the practical aspects of working with electrical drives, will greatly benefit from this unique reference.
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781721014149 Total Pages :30 pages Book Rating :4.0/5 (141 download)
Book Synopsis Test Platform for Advanced Digital Control of Brushless DC Motors (Msfc Center Director's Discretionary Fund) by : National Aeronautics and Space Administration (NASA)
Download or read book Test Platform for Advanced Digital Control of Brushless DC Motors (Msfc Center Director's Discretionary Fund) written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-11 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: A FY 2001 Center Director's Discretionary Fund task to develop a test platform for the development, implementation. and evaluation of adaptive and other advanced control techniques for brushless DC (BLDC) motor-driven mechanisms is described. Important applications for BLDC motor-driven mechanisms are the translation of specimens in microgravity experiments and electromechanical actuation of nozzle and fuel valves in propulsion systems. Motor-driven aerocontrol surfaces are also being utilized in developmental X vehicles. The experimental test platform employs a linear translation stage that is mounted vertically and driven by a BLDC motor. Control approaches are implemented on a digital signal processor-based controller for real-time, closed-loop control of the stage carriage position. The goal of the effort is to explore the application of advanced control approaches that can enhance the performance of a motor-driven actuator over the performance obtained using linear control approaches with fixed gains. Adaptive controllers utilizing an exact model knowledge controller and a self-tuning controller are implemented and the control system performance is illustrated through the presentation of experimental results.Gwaltney, D. A.Marshall Space Flight CenterDIGITAL SYSTEMS; CONTROL SYSTEMS DESIGN; ADAPTIVE CONTROL; ELECTRIC MOTORS; ACTUATORS; PROPORTIONAL CONTROL; MATHEMATICAL MODELS; FEEDBACK CONTROL; REAL TIME OPERATION; ELECTROMECHANICAL DEVICES; PROPULSION SYSTEM PERFORMANCE; LINEARITY; FUEL VALVES
Book Synopsis Intelligent Mechatronic Systems by : Rochdi Merzouki
Download or read book Intelligent Mechatronic Systems written by Rochdi Merzouki and published by Springer Science & Business Media. This book was released on 2012-11-27 with total page 960 pages. Available in PDF, EPUB and Kindle. Book excerpt: Acting as a support resource for practitioners and professionals looking to advance their understanding of complex mechatronic systems, Intelligent Mechatronic Systems explains their design and recent developments from first principles to practical applications. Detailed descriptions of the mathematical models of complex mechatronic systems, developed from fundamental physical relationships, are built on to develop innovative solutions with particular emphasis on physical model-based control strategies. Following a concurrent engineering approach, supported by industrial case studies, and drawing on the practical experience of the authors, Intelligent Mechatronic Systems covers range of topic and includes: An explanation of a common graphical tool for integrated design and its uses from modeling and simulation to the control synthesis Introductions to key concepts such as different means of achieving fault tolerance, robust overwhelming control and force and impedance control Dedicated chapters for advanced topics such as multibody dynamics and micro-electromechanical systems, vehicle mechatronic systems, robot kinematics and dynamics, space robotics and intelligent transportation systems Detailed discussion of cooperative environments and reconfigurable systems Intelligent Mechatronic Systems provides control, electrical and mechanical engineers and researchers in industrial automation with a means to design practical, functional and safe intelligent systems.
