induction motor speed control using pwm technique

Ngày tải lên: 18/12/2013, 22:06

Ngày tải lên: 15/10/2013, 16:10

... designed to control a brush-less DC motor. However, by constructing a feedback loop that can detect the outputs of an induction motor, we can use this motor controller to control an induction ... responsible for the induction motor s many advantages are clearly explained. Wildi also presents the two types of induction motors: “the squirrel cage induction motor and the “wound motor . An explanation ... Gareth S Roberts 4. The Induction Machine 4.1 The fundamental operating principles for an induction motor An induction motor is an asynchronous AC (alternating current) motor. The least expensive...

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Ngày tải lên: 17/12/2013, 18:06

... backpropagation technique in the MATLAB-based Neural Network Toolbox [8] was used for offline training. The network was simulated with an open-loop volts/Hz-controlled induction motor drive and ... da Silva, and M. P. Kazmierkowski, “A neural network based space vector PWM controller for voltage-fed inverter induction motor drive,” IEEE Trans. Ind. Applicat., vol. 36, pp. 1628–1636, Nov./Dec. ... Pinto, B. K. Bose, and L. E. B. da Silva, “A stator flux oriented vector-controlledinduction motor drive with space vector PWM and flux vector synthesis by neural networks,” IEEE Trans. Ind. Applicat.,...

Ngày tải lên: 22/12/2013, 08:16

... pulse-width-modulated (PWM) power amplifier. Motor speed is measured using an analog tachometer. Figure 2. Physical System Mechatronics Kevin Craig DC Motor / Tachometer Closed-Loop Speed Control ... root-locus domain. Mechatronics Kevin Craig DC Motor / Tachometer Closed-Loop Speed Control System 24 Mechatronics DC Motor / Tachometer Closed-Loop Speed Control System 1. Introduction This ... (armature) of the motor is available to drive an external load. DC motors are widely used in numerous control applications because of features such as high torque, speed controllability over...

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Ngày tải lên: 28/12/2013, 22:07

...  Overview of Gas Springs 2 . 21369 . 2007 . 1  Speed Control TM « SPC Gas Springs, cushioned 2486.12. FIBRO SPC Gas Springs Speed Control TM « are designed to reduce or eliminate the ... caused by the increased return travel speed in high speed presses (link drive presses). SPC Gas Springs feature an integral return travel delay which reduces the speed of the gas spring to 0.4 m/s ... 2 . 21370 . 2007 . 1  3 Speed Control TM « SPC Gas Springs, 2486.12. cushioned subject to alterations Force in daN at Piston...

Ngày tải lên: 22/01/2014, 02:20

... AC INDUCTION MOTORS Generally, induction motors are categorized based on the number of stator windings. They are: • Single-phase induction motor • Three-phase induction motor Single-Phase Induction ... 19 AN887 CONTROL TECHNIQUES Various speed control techniques implemented by modern-age VFD are mainly classified in the following three categories: • Scalar Control (V/f Control) • Vector Control ... (Indirect Torque Control) • Direct Torque Control (DTC) Scalar Control In this type of control, the motor is fed with variable frequency signals generated by the PWM control from an inverter using the...

Ngày tải lên: 25/01/2014, 13:20

... constant-slip control is a torque input control, a speed control is necessary for speed regulation. For the study shown in Figure 13.3-4, the torque command is calcu- lated in accordance with the speed control ... zero speed, when, approximately 250 ms into the study, the mechanical speed command is stepped Figure 13.6-2. Torque control loop. 504 INDUCTION MOTOR DRIVES taken. Another method of controlling ... described. 13.2.  VOLTS-PER-HERTZ CONTROL Perhaps the simplest and least expensive induction motor drive strategy is constant volt-per-hertz control. This is a speed control strategy that is based...

Ngày tải lên: 16/02/2014, 18:54

... ∗] (1) 3.4 Translation Induction for Chinese Abbreviations Given a Chinese abbreviation and its full-form, we induce English translation entries for the abbrevia- tion by using the full-form as ... 2008. c 2008 Association for Computational Linguistics Unsupervised Translation Induction for Chinese Abbreviations using Monolingual Corpora Zhifei Li and David Yarowsky Department of Computer ... Statistical Machine Translation Using Paraphrases. In Proceedings of NAACL 2006, pages 17-24. Marine Carpuat and Dekai Wu. 2007. Impr oving Statis- tical Machine Translation using Word Sense Disam- biguation....

Ngày tải lên: 20/02/2014, 09:20

... for all papers in publication pages (due to copyright and other issues). The titles are then parsed using the RASP parser (Briscoe and Carroll, 2002) and key- phrases are extracted by pattern matching....

Ngày tải lên: 20/02/2014, 09:20

... trends of organization’s computer network security for the next 5 years (2011-2015) by using the Delphi technique. The future trend includes bringing together the opinions of experts in organization’s ... The Future of Organization’s Computer Network Security for the Next 5 Years (2011-2015) by Using Delphi Technique Cholatip Yawut + and Phattarapong Keawpipop Faculty of Information Technology ... is to predict the future of computer network security for the next 5 years (2011-2015) by using Delphi technique which is a widely used and accepted method for achieving convergence of opinion...

Ngày tải lên: 05/03/2014, 23:20

... development process using version control. Version Control, sometimes called source code control, is the first leg of our project support tripod. We view the use of version control as mandatory ... gentle introduction to a particular version control system, CVS. Prepared exclusively for Francilene Procopio Garcia RO AD MA P 6 Using version control gave Fred and Wilma the control and the flexibility to ... your project. This volume, Pragmatic Version Control, describes how to use version control as the cornerstone of a project. A project with- out version control is like a word processor without an...

Ngày tải lên: 15/03/2014, 10:20