induction motor speed control techniques
Design and Implementation of a Three-Phase Induction Motor Control Scheme
Ngày tải lên :
27/10/2013, 23:15
... 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 ... a control strategy that varies the frequency and voltage of the
signal applied to the windings of the induction motor, while controlling the flux created
in the air-gap of the induction motor. ...
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Tài liệu Mechatronics DC Motor / Tachometer Closed-Loop Speed Control System ppt
Ngày tải lên :
25/01/2014, 13:20
... 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 ... well-behaved speed-
torque characteristics, and adaptability to various types of control methods. DC motors are
classified as either integral-horsepower motors (≥ 1 hp) or fractional-horsepower motors ... power amplifier. Motor speed is measured using
an analog tachometer.
Figure 2. Physical System
Mechatronics Kevin Craig
DC Motor / Tachometer Closed-Loop Speed Control System 5
Most...
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Direct control methods for matrix converter and induction motor
Ngày tải lên :
13/05/2014, 00:55
... closed loop
control of a drive system consisting of matrix converter
and induction machine. Slip control and field oriented
control are the basic methods applied for closed loop
control [4]. ... are
the basics of Direct Torque Control, Direct Current Control
and Sliding Mode Control of matrix converters.
I. INTRODUCTION
In recent years many research results on control
methods for matrix ... Converters
in Direct Torque Control of Induction Machines,” IEEE Trans.
Ind. Electron., vol. 48, pp. 1057-1064, December 2001.
[10] M. Depenbrok, “Direct Self -Control (DSC) of Inverter-Fed
Induction Machine”,...
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At Speed Debugging Techniques
Ngày tải lên :
29/09/2013, 18:20
... CHAPTER
18
At Speed
Debugging
Techniques
Throughout the book so far we have discussed a number
of techniques for implementing VHDL designs and ways
to make ... behave as expected.
These techniques include simulation, synthesis of the
design to an FPGA or ASIC, and gate-level simulation
using VITAL libraries. A new technique called At -Speed
Debugging is just ... Data
Displayed as
Waveforms.
Figure 18-12
Watchpoint
Specification Dialog
Box.
411
At Speed Debugging Techniques
true, the IICE will trigger, indicating that the instruction register is be-
ing...
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The Control Techniques Drives and Controls Handbook
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20/10/2013, 02:15
... torque control 113
3 D.C. motor drive control 114
Flux controller 114
Torque controller 115
Performance and applications 116
4 Analysis of and set up of a speed controller 116
Ideal speed controller ... induction motors 9
Torque characteristics 10
Voltage-frequency relationship 11
Increased voltage 12
Reduced frequency 12
Slip-ring induction motor 13
Speed- changing motors 13
A.C. induction motor ... happens as speed is increased? 124
Medium -speed operation 124
How is performance maintained as speed
increases? 125
High -speed operation 125
Summary of typical/practical control 126
Control of speed...
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Tài liệu A neural-network-based space-vector PWM controller for a three-level voltage-fed inverter induction motor drive doc
Ngày tải lên :
22/12/2013, 08:16
... algorithm in
the MATLAB Neural Network Toolbox. The performance of an
open-loop volts/Hz speed- controlled induction motor drive has
been evaluated with the ANN-based modulator and compared
with that ... 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. ... 2000.
[3] J. O. P. 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...
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Comparison of current control techniques for active filter application
Ngày tải lên :
03/01/2014, 19:45
... the lin-
ear current control, the digital deadbeat control, and the
hysteresis control. In principle, analog control techniques
have the fastest speed of response, not being delayed by
any A/D conversion ... current
i
S
spectrum.
niques for active filter applications. All the techniques, hys-
teresis control, deadbeat control, and linear rotating frame
control were considered, including the latest improvements
brought ... in the control techniques result in rather
satisfactory performance levels for all three controllers. How-
ever, the results of the comparison show a certain superiority
of the hysteresis control. ...
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Current control techniques for three phase voltage source PWM converters a survey
Ngày tải lên :
03/01/2014, 19:45
... Block scheme of FL controller, (b) control surface of con-
ventional PI controller, (c) control surface of FL controller; comparison of
current-tracking performance with PI and FL controller: (d) ... field-oriented controlled induction motor drive,” IEEE
Trans. Ind. Applicat., vol. 30, pp. 1247–1253, Sept./Oct. 1994.
[28]
, “Novel current regulation for a field-oriented controlled induc-
tion motor ... induction machine controllers,” IEEE Trans.
Ind. Applicat., vol. IA-23, pp. 597–602, July/Aug. 1987.
[30] J. Moerschel, “Signal processor based field oriented Vector Control for
an induction motor...
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Tài liệu Speed Control SPC GAS SPRINGS, cushioned pptx
Ngày tải lên :
22/01/2014, 02:20
...
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...
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Tài liệu AC Induction Motor Fundamentals docx
Ngày tải lên :
25/01/2014, 13:20
... 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 ... squirrel cage
induction motor is less than 5%. The actual full-load slip
of a particular motor is dependant on the motor design.
The typical base speed of the four pole induction motor
varies...
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Chapter 13 induction motor drives
Ngày tải lên :
16/02/2014, 18:54
... 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...
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Essentials of Control Techniques and Theory_1 pptx
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21/06/2014, 07:20
... xiii
ISECTION ESSENTIALS OF CONTROL TECHNIQUES
WHAT YOU NEED TO KNOW
1 Introduction: Control in a Nutshell; History, Theory, Art, and
Practice 3
1.1 e Origins of Control 3
1.2 Early Days of ... J. (John)
Essentials of control techniques and theory / John Billingsley.
p. cm.
Includes index.
ISBN 978-1-4200-9123-6 (hardcover : alk. paper)
1. Automatic control. 2. Control theory. I. Title.
TJ223.M53B544 ... 10/12/09 1:40:45 PM
Essentials of
Control Techniques
and Theory
91239.indb 1 10/12/09 1:40:29 PM
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6 ◾ Essentials of Control Techniques and Theory
a small sinusoidal...
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