220v ac motor speed control circuit diagram
Tài liệu Mechatronics DC Motor / Tachometer Closed-Loop Speed Control System ppt
Ngày tải lên :
25/01/2014, 13:20
...
A 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 ... 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 ... Mechatronics Kevin Craig
DC Motor / Tachometer Closed-Loop Speed Control System 21
Table 1. Specifications of the Honeywell 22VM51-020-5 DC Motor with Tachometer
Motor Characteristics Units Values...
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Tài liệu Speed Control SPC GAS SPRINGS, cushioned pptx
Ngày tải lên :
22/01/2014, 02:20
...
.
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 sheet metal retainer bounce back
which is ... 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 ... a soft arrival for the sheet metal
retainer.
Benefits of the Speed Control
TM
ô SPC Gas Springs,
cushioned:
Prevents bounce back of sheet metal retainer.
Increased productivity through...
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Chapter 14 permanent magnet AC motor drives
Ngày tải lên :
16/02/2014, 18:54
... or nonsinusoidal back emf waveforms.
Machines with sinusoidal back emfs may be controlled so as to achieve nearly con-
stant torque; however, machines with a nonsinusoidal back emf may be less ... nominal operating speed of 200 rad/s (mechanical).
542 PERMANENT-MAGNET AC MOTOR DRIVES
The structure of the control algorithms determines the type of permanent-magnet
ac motor drive, of which ... structure of the controls
Figure 14.1-1. Permanent-magnet ac motor drive.
Electrical
System
Command
Signal
Power
Converter
Control
PM
AM
Mechanical
System
Sensors
566 PERMANENT-MAGNET AC MOTOR DRIVES
...
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M4 Macros for Electric Circuit Diagrams in LATEX Document
Ngày tải lên :
23/05/2014, 10:53
... character is a backslash
or, with dpic, if the backslash is followed immediately by the # character. A blank after the
backslash, for example, produces a pic error.
12. Scaling: Pic and these macros ... The macro
switch(,,,D) is a wrapper for the comprehensive dswitch macro.
draws two diodes to the right, but the second one points left. Similarly, the macro
resized(factor,‘macro name’,macro ... with macro names is required, then one possibility is
to replace the strings by macros to be expanded by L
A
T
E
X, for example the diagram
.PS
box "\stringA"
.PE
with the LaTeX macro
\newcommand{\stringA}{
Circuit...
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báo cáo hóa học:" Scan speed control for tapping mode SPM" docx
Ngày tải lên :
21/06/2014, 17:20
... 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, is limited ...
control [1, 2].
Let us find the maximum scan speed without loss of surface. The transient response of
the loop control to a capacitive displacement sensor output (if the high-frequency pole ... line traces of the calibration grating with the step height equal to
25 nm. At a constant speed of 30 àm/s (a), with a dynamic control (b), and with a
dynamic control and at a variable speed...
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ADVANCES IN MOTOR TORQUE CONTROL pdf
Ngày tải lên :
29/06/2014, 09:20
... frequency 1/τ
q
.is 20 (Hz) because reaction torque
Advances in Motor Torque Control
16
Sub motor
controller
Sub
motor
Rack & Pinion
Torque Sensor
Main motor
Electric
Signal Line
Planetary ... motor
controller
Vehicle motion
controller
Δθ
*
Active Front
Steering
T
s
T
f
Yaw rate
Acceleration
Velocity
θ
t
Fig. 2. Differential steering system.
Fig. 3. Block diagram of active ... torque-
control motor capable of achieving faster and easier root canal preparation. Speed and
maximum torque levels are preselectable and constantly controlled by the TCM III control
unit. Speed...
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AC motor doc
Ngày tải lên :
13/07/2014, 00:20
... asynchronous machines
Asynchronous motor
Circuit diagram "Connection & starting" (delta connection)
11
EEM41 Three-phase asynchronous machines
Asynchronous motor
Set-up "Reactive ... (5 each)
5 x
2
EEM41 Three-phase asynchronous machines
Asynchronous motor
Experiment procedure:
z Start the "ActiveDrive/ActiveASMA" software
z Select "Automatic speed control& quot; ... Three-phase asynchronous machines
Asynchronous motor
Experiment procedure:
z Start the "ActiveDrive/ActiveASMA" software
z Select "Automatic speed control& quot; operating mode...
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Xây dựng hệ thống biến đổi DC/AC đốt đèn trong trường hợp mất điện lưới. Thông số : UDC= 6V, UAC= 220V, f=50Hz
Ngày tải lên :
26/04/2013, 09:52
... thống biến đổi dc /ac từ
6vdc lên 220vac tần số 50hz
2.1. lựa chọn hệ thống biến đổi dc /ac.
Ta a ra thụng số và yêu cầu bộ nghịch lưu cần thiết kế như sau:
Nguồn cấp là Acquy 6VDC/20Ah.
... trường hợp này điện áp V
g
chính là điện áp trên hai cực của
acquy. Acquy dùng cho bộ nghịch lưu là loại acquy chì 6V-20Ah. V
gmax
khi
acquy nạp đầy là V . Chọn tần số chuyển mạch f
s
= 50 Hz
... kế như sau:
Nguồn cấp là Acquy 6VDC/20Ah.
Công suất 100W.
Điện áp đầu ra 220VAC/50Hz.
Với nguồn cấp là Acquy nên ta sử dụng mạch nghịch lưu độc lập.Như
vậy ta có ba sự chọn lựa : Nghịch...
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Design and Implementation of a Three-Phase Induction Motor Control Scheme
Ngày tải lên :
27/10/2013, 23:15
... detect the outputs of an induction motor, we
can use this motor controller to control an induction machine.
ã TMS320F243 DSP controller. This is manufactured by the Texas Instruments
Company ... nominal speed. However, outside the rated
speed operation, the flux has to be decreased like an inverse function of speed. By
weakening the rotor flux, the induction machine can reach speeds ... to develop a control strategy for the DSP controller that controls the
torque production within the induction machine. However, there is no great emphasis
placed on precise torque control.
...
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