dc motor speed control using pwm
Tài liệu Mechatronics DC Motor / Tachometer Closed-Loop Speed Control System ppt
Ngày tải lên :
25/01/2014, 13:20
... 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 ... schematic diagram of a DC motor is shown in Figure 6.
Figure 6. Schematic Diagram of a DC Motor
Mechatronics Kevin Craig
DC Motor / Tachometer Closed-Loop Speed Control System 10
ã ... 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...
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Tài liệu Speed Control of DC Manchines pptx
Ngày tải lên :
17/12/2013, 14:15
...
B
r
e
r
v
r
B
r
I
r
F
r
B
r
v
r
e
r
B
r
I
r
F
r
Đặc tính cơ của động cơ DC kích từ nối tiếp
Example 4:
Example 5:
Đặc tính cơ
4 phần tư...
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Direct torque and indirect flux control of brushless DC motor with non sinusoidal back EMF without position sensor
Ngày tải lên :
03/01/2014, 19:45
...
conduction DTC of BLDC motor drive with six-switch inverter
scheme.
Keywords: Brushless dc (BLDC) motor, sliding mode
observer, direct torque control (DTC), stator flux control,
fast torque ... Block
Indirect torque control method of BLDC motor
explained in [9] was extended to a direct torque and
indirect flux control technique for six-switch inverter
BLDC motor in [7] which is suitable ... reported to control of
BLDC motor using six-switch three-phase inverter
(SSTPI).
Direct torque control (DTC) scheme was first
proposed by Takahashi [1] and Depenbrock [2] for
induction motor drives...
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Direct torque and indirect flux control of brushless DC motor
Ngày tải lên :
03/01/2014, 19:46
... maximum-efficiency control of BLDC motor, ”
IEEE Trans. Ind. Electron., vol. 47, no. 1, pp. 109–114, Feb. 2000.
[22] L. Hao and H. A. Toliyat, “BLDC motor full -speed operation using hybrid
sliding ... INDIRECT FLUX CONTROL OF BRUSHLESS DC MOTOR 355
TAB L E I
S
WITCHING
T
ABLE FOR
DTC
OF
BLDC M
OTOR
U
SING
T
HREE
-
PHASE
C
ONDUCTION
indirectly kept at its optimum level, while the motor speed is
less ... programming-based control of brushless motors,”
IEEE Trans. Control Syst. Technol., vol. 11, no. 1, pp. 139–146, Jan. 2003.
[19] S. J. Kang and S. K. Sul, “Direct torque control of brushless dc motor with
nonideal...
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Direct torque control of four switch brushless DC motor with non sinusoidal back EMF
Ngày tải lên :
03/01/2014, 19:46
... only the torque is controlled without speed control,
the time range of control system under transient state is
selected short. The motor speeds up to a very large value
if the motor is run longer ...
of a BLDC motor drive using four-switch inverter with
faster torque response due to the fact that the voltage space
vectors are directly controlled. Therefore, the direct torque
controlled ... bill.alexander@idealpowerconverters.com
Abstract—This paper presents a direct torque control (DTC)
technique for brushless dc (BLDC) motors with non-
sinusoidal back-EMF using four-switch inverter in the
constant torque region....
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Pseudo vector control – an alternative approach for brushless DC motor drives
Ngày tải lên :
03/01/2014, 19:46
...
conventional control system for BLDC motor (Fig. 2). The
motor is fed by a PWM- controlled MOSFET inverter. As we
can see in Figs. 2 and 3, the currents are controlled by 3
current controllers ... motor that is fed by square-wave
current and it is often called Brushless DC Motor
(BLDCM).
The main difference between two kinds of motors from
the control viewpoint resides on current control ... machine, Vector control,
Pseudo-vector control, Torque ripple minimization.
I. I
NTRODUCTION
A. Sine-wave PM Motor vs. Square-wave Motor: Vector Control
vs. Phase Current Control
With the...
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Bộ điều khiển số PID điều khiển DC motor
Ngày tải lên :
23/04/2013, 14:48
... loại AVR tốc độ cao, tích
hợp sẵn ADC 10 bit.
- AVR tích hợp sẵn LCD driver : Atmega169, 329.
- AVR có tích hợp SC (power stage controller): AT9 0PWM thường dùng trong các
ứng dụng ... thay vì nhập xuất dữ liệu.
- Chân 30 : AVCC cấp điện áp so sánh cho bộ ADC.
- Chân 32 : AREF điện áp so sánh tín hiệu vào ADC.
- Chân 33 đến 40 : Cổng vào ra dữ liệu song song A ( PORTA ) ngoài ... tín hiệu số ADC ( analog to digital
converter)
b. Vào ra của vi điều khiển
PORTA ( PA7 … PA0 ) : là các chân số 33 đến 40. Là cổng vào ra song song 8 bít
khi không dùng ở chế độ ADC. Bên trong...
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DC Motor - Content
Ngày tải lên :
28/10/2013, 05:15
... cổng.
VD3: Sử dụng thanh ghi CC 80C537, có thể đạt 5kHz.
DC Motor - PWM illustration
By Lê Anh Tuấn 12/2002
DC Motor - Brushless DC
Động cơ một chiều không chổi than không được cấp liên tục ... 12/2002
DC Motor - Practical2
PWM SỬ DỤNG IC 555
Mạch dùng điều khiển động cơ 6V, 0.5 A với đầu vào Vin=9V
U1: tạo nhịp, chính là tần số làm việc
U2: Chu kỳ làm việc
By Lê Anh Tuấn 12/2002
DC Motor ... ứng dụng
By Lê Anh Tuấn 12/2002
DC Motor - Practical3
PWM BẰNG VI ĐIỀU KHIỂN
By Lê Anh Tuấn 12/2002
VD1: Sử dụng hai timer T0,T2 của AT89C52
T0: chu kỳ của xung PWM
T2: thời gian xung làm việc
VD2:...
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Tài liệu Brushed DC Motor Fundamentals doc
Ngày tải lên :
22/12/2013, 14:15
... drawback to SWDC motors is that they do not
have precise speed control like PMDC and SHWDC
motors have.
FIGURE 4: SERIES-WOUND DC
MOTORS
Armature
Brush
Permanent
Magnet Poles
DC
Voltage
Supply
Armature
Brush
Shunt
Field
DC
Voltage
Supply
Armature
Brush
Series
Field
DC
Voltage
Supply
... electric motor types (i.e., brushless DC,
AC induction), BDC motors do not require a controller
to switch current in the motor windings. Instead, the
commutation of the windings of a BDC motor is ... the
different types of BDC motors and the advantages/
disadvantages of each.
Permanent Magnet
Permanent Magnet Brushed DC (PMDC) motors are
the most common BDC motors found in the world.
These motors use...
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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
ô
SPC Gas Springs,
cushioned 2486.12.
FIBRO SPC Gas Springs Speed Control
TM
ô 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
ô
SPC Gas Springs,
2486.12. cushioned
subject to alterations
Force in daN at Piston...
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Pragmatic Version Control Using CVS pptx
Ngày tải lên :
15/03/2014, 10:20
... 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...
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