dc motor speed control methods using matlab simulink
Tài liệu Control Systems Simulation using Matlab and Simulink pptx
Ngày tải lên :
12/12/2013, 07:15
... newtons/meter/sec
˙x
1
˙x
2
˙x
3
˙x
4
=
0100
−
k
m
1
−
c
m
1
k
m
1
c
m
1
0001
k
m
2
c
m
2
−
k
m
2
−
c
m
2
x
1
x
2
x
3
x
4
+
0
1
m
1
0
0
u
4
K
p
K
i
K
d
controller 1 100
controller 2 10 0 0
controller 3 20 0 0
controller 4 20 1 0
controller 5 20 1 20
Plot all the unit-step output (y(t) ... value.
We are interested in three types of controllers:
6.2.1 Proportional Control (P -control) :
This is the simplest type of continuous control law. The controller output is made proportional to
the ... Engineering
ME134 Automatic Control Systems
Spring 2002
Report Due: Tuesday, February 26 One report per group is required.
Control Systems Simulation
Using Matlab and Simulink
1 Introduction
In...
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Tài liệu Control Systems Simulation using Matlab and Simulink doc
Ngày tải lên :
22/12/2013, 21:18
... compared to its predecessor, RClass. Using
RClass
*
, two kinds of rules, certain rules and possible rules, can be induced from examples. RClass
*
was
validated using an example gleaned from literature. ... in many real-life applications
such as medical diagnosis [Slowinski, 1992], control algorithm acquisition and process control [Mrozek,
1992], and structural engineering [Arciszewski and Ziarko, ... concept. This is achieved by using a simple but effective
GA-based search engine.
3. Simplifying the decision rules discovered by the GA-based search engine. This is realized using
the Boolean algebraic...
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DC bus control of variable speed wind turbine using a buck boost converter
Ngày tải lên :
03/01/2014, 19:15
... [13]
3
tdcdc
PVIVI==
(3)
Where, V
dc
, I
dc
are DC side voltage and current, respectively.
The mean value of DC voltage is shown like the following.
6
max
6
3
cos
dc LL
VVd
π
π
θθ
π
−
=
∫
... Operation modes of buck boost converter
2
Unlike constant -speed control, a variable -speed control can
adjust the speed of the turbine as the wind speed changes, so
as to operate at the peak of the ... proposed MPPT control method.
Fig.7: Wind turbine output power without MPPT control method
for low wind speed.
Fig.8: Wind turbine output power with MPPT control method
for low wind speed. ...
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Tài liệu Mechatronics DC Motor / Tachometer Closed-Loop Speed Control System ppt
Ngày tải lên :
25/01/2014, 13:20
... 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
• ... 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 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 ... force (EMF), position-sensorless
control, stator flux control, torque pulsation.
I. I
NTRODUCTION
T
HE permanent-magnet synchronous motor (PMSM) and
brushless dc (BLDC) motor drives are used extensively ... 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...
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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
... 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 ...
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 ... 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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Jim ledin embedded control systems in c and c++ an introduction for software developers using MATLAB 2004
Ngày tải lên :
19/03/2014, 14:09
... to apply these methods is to use a good control system design software package such as the MATLAB
Control System Toolbox. MATLAB and related products, such as Simulink and the Control System ... Control and Feedback Control
In many control system designs, it is possible to use either open-loop control or feedback control. Feedback control
systems measure the system parameter being controlled ... common example of a control system is the cruise control in an automobile:
The cruise control manipulates the throttle setting so that the vehicle speed tracks the commanded speed set by the
driver.
In...
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Brushless DC Motor Control Made Easy potx
Ngày tải lên :
30/03/2014, 07:20
... Setup ADC (bank1)
movlw B’00001110’ ; ADC left justified, AN0 only
movwf ADCON1
banksel ADCON0
; setup ADC (bank0)
movlw B’11000001’ ; ADC clock from int RC, AN0, ADC on
movwf ADCON0
bsf ADCON0,GO ...
reading
;**********************************************************************
;*
;* Main control loop
;*
Loop
call ReadADC ; get the speed control from the ADC
incfsz ADC,w ; if ADC is 0xFF we’re at full speed - skip timer add
goto PWM ; add Timer0 to ADC for PWM
movf ... the speed control potentiometer
;* and start the next reading
;*
btfsc ADCON0,NOT_DONE ; is ADC ready?
return ; no - return
movf ADRESH,w ; get ADC result
bsf ADCON0,GO ; restart ADC
movwf ADC...
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modeling and simulation of systems using matlab and simulink
Ngày tải lên :
01/04/2014, 10:55
... Modeling of Various Components of Pitch Control System 438
9.4.5 Simulink Model of Pitch Control in Flight 440
9.4.5.1 Simulink Model of Pitch Control in Flight Using
Nonlinearities 440
9.4.6 Study ... Nonlinearities in Flight Control of Aircraft 435
9.4.1 Basic Control Surfaces Used in Aircraft Maneuvers 435
9.4.2 Principle of Flight Controls 435
9.4.3 Components Used in Pitch Control 437
9.4.4 Modeling ... Systems Using MATLAB and Simulink
The function le contains the differential equation of bumper as below:
function dvdx=bumper(x,v)
global k m
dvdx=-(k
*
v^2
*
(x+1)^3)/m;
When the above MATLAB...
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