induction motor speed control methods
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]. ... of modern direct control methods to the
system with matrix converter and induction machine.
In this paper, the most important direct control methods
for matrix converter and induction machine ... 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...
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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
... 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 ... 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 ... 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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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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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 ... 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 ... advantages of
AC induction motors.
Various types of AC induction motors are available in
the market. Different motors are suitable for different
applications. Although AC induction motors are easier
to...
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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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báo cáo hóa học:" Scan speed control for tapping mode SPM" docx
Ngày tải lên :
21/06/2014, 17:20
... the step height equal to
25 nm. At a constant speed of 30 µm/s (a), with a dynamic control (b), and with a
dynamic control and at a variable speed (c).
Figure 2. Comparative line traces for ... K
τ
. As a result, the speed of a closed-loop control system (that is,
without loss of surface) is determined by the time constant
0 0
i
G K
τ
. Feedback speed,
the speed of the actuator, ... dynamic controller on ‘parachuting’ regions. Furthermore,
we propose to use variable scan speed on ‘upward step’ regions, with the speed
determined by the error signal of the closed-loop control. ...
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