A synchronous motor is electrically identical with an alternator or AC generator.
A given alternator ( or synchronous machine) can be used as a motor, when driven electrically.
Some characteristic features of a synchronous motor are as follows:
1. It runs either at synchronous speed or not at all i.e. while running it maintains a constant speed. The only way to change its speed is to vary the supply frequency (because NS=120f/P).
2. It is not inherently self-starting. It has to be run up to synchronous (or near synchronous) speed by some means, before it can be synchronized to the supply.
3. It is capable of being operated under a wide range of power factors, both lagging and leading. Hence, it can be used for power correction purposes, in addition to supplying torque to drive loads.
Permanent Magnet Synchronous motor (PMSM) or Permanent Magnet AC motor:
Introduction to PMSM motor.
Types of PMSM Motor.
Mathematical modelling of PMSM motor.
Advantages and dis Advantages of PMSM motor
Content:
Introduction to Stepper Motors
Types of Stepper Motors
Main components of a stepper motor
How do these components work together
Control sequence to turn a stepper motor
Advantages and disadvantages of stepper motors
Practical Applications of stepper motor
Step Angle
Summary
For more information Email us:
Engineeringgaragevir@gmail.com
Regards;
xubair khan
Stepper Motor Basics and Types with different modes of operation
1. Basics of stepper motor
2. step angle
3. types
4. Variable reluctance stepper motor
5. 1-phase-on mode
6. 2-phase-on mode
7. half step mode
8. PM stepper motor
9. Hybrid Stepper Motor
10. Application
This is a presentation about linear induction motor. here I had explained LIM clearly like effects, construction, working, application and many more. most of people don't know much about this type of motor. I hope this will be usefull to you
Breaking,Types of Electrical Braking system, Regenerative Braking, Plugging ...Waqas Afzal
Why Breaking?
Requirements for Braking
Types of Electrical Braking system
Regenerative Braking.
Plugging type braking.
Dynamic braking.
Breaking implementations at DC Motor and AC Motor
A synchronous motor is electrically identical with an alternator or AC generator.
A given alternator ( or synchronous machine) can be used as a motor, when driven electrically.
Some characteristic features of a synchronous motor are as follows:
1. It runs either at synchronous speed or not at all i.e. while running it maintains a constant speed. The only way to change its speed is to vary the supply frequency (because NS=120f/P).
2. It is not inherently self-starting. It has to be run up to synchronous (or near synchronous) speed by some means, before it can be synchronized to the supply.
3. It is capable of being operated under a wide range of power factors, both lagging and leading. Hence, it can be used for power correction purposes, in addition to supplying torque to drive loads.
Permanent Magnet Synchronous motor (PMSM) or Permanent Magnet AC motor:
Introduction to PMSM motor.
Types of PMSM Motor.
Mathematical modelling of PMSM motor.
Advantages and dis Advantages of PMSM motor
Content:
Introduction to Stepper Motors
Types of Stepper Motors
Main components of a stepper motor
How do these components work together
Control sequence to turn a stepper motor
Advantages and disadvantages of stepper motors
Practical Applications of stepper motor
Step Angle
Summary
For more information Email us:
Engineeringgaragevir@gmail.com
Regards;
xubair khan
Stepper Motor Basics and Types with different modes of operation
1. Basics of stepper motor
2. step angle
3. types
4. Variable reluctance stepper motor
5. 1-phase-on mode
6. 2-phase-on mode
7. half step mode
8. PM stepper motor
9. Hybrid Stepper Motor
10. Application
This is a presentation about linear induction motor. here I had explained LIM clearly like effects, construction, working, application and many more. most of people don't know much about this type of motor. I hope this will be usefull to you
Breaking,Types of Electrical Braking system, Regenerative Braking, Plugging ...Waqas Afzal
Why Breaking?
Requirements for Braking
Types of Electrical Braking system
Regenerative Braking.
Plugging type braking.
Dynamic braking.
Breaking implementations at DC Motor and AC Motor
Stepper Motor Types, Advantages And Applicationselprocus
A stepper motor is an electromechanical device which converts electrical pulses into discrete mechanical movements. The shaft or spindle of a stepper motor rotates in discrete step increments when electrical command pulses are
applied to it in the proper sequence. The motors rotation has several direct relationships to these applied input pulses. The sequence of the applied pulses is directly related to the direction of motor shafts rotation. The speed of the
motor shafts rotation is directly related to the frequency of the input pulses and the length of rotation is directly related to the number of input pulses applied.
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We done a project on Vector speed control of induction motor.
This paper is completely written in simple words and this is the most easiest way of explaining.
And also ,here i am providing a youtube link how we done this project and its matlab simulation circuit and result analyzing...etc..,
Our teammates are :-1)Samala Ranjith
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3)Shyamala Karunakar Reddy
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This is my presentation of a baseband processor, which I have developed as a major project in masters, This presentation, gives you an overview of results and effectiveness, of the processor in respect of FPGA and ASIC level.
This presentation is an approach towards vehicular communication, in respect of future robotics communication. I am using scalefree network minimization to predict next user or vehicle to be master in transferring data in dynamic scenario
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This presentation thus points out the emic effects and how it can be controlled in safety products
This presentation shows the emic effects in instruments of radio frequency and how it can be minimized.
Note: Just using this work which I found on internet during my work on EMIC effect and re edited for use
Robotics in army presentation is just an another term used in this presentation as to lead all the way how robots have became main and constructive parts in army and wars
This presentation is all on optical tweezers .Optical tweezers (originally called "single-beam gradient force trap") are scientific instruments that use a highly focused laser beam.
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How to Split Bills in the Odoo 17 POS ModuleCeline George
Bills have a main role in point of sale procedure. It will help to track sales, handling payments and giving receipts to customers. Bill splitting also has an important role in POS. For example, If some friends come together for dinner and if they want to divide the bill then it is possible by POS bill splitting. This slide will show how to split bills in odoo 17 POS.
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He discussed the concept of quality improvement, emphasizing its applicability to various aspects of life, including personal, project, and program improvements. He defined quality as doing the right thing at the right time in the right way to achieve the best possible results and discussed the concept of the "gap" between what we know and what we do, and how this gap represents the areas we need to improve. He explained the scientific approach to quality improvement, which involves systematic performance analysis, testing and learning, and implementing change ideas. He also highlighted the importance of client focus and a team approach to quality improvement.
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Stepper motor
1.
2. PrinciPle of stePPer
motor
A stepper motor is an electromechanical device which
converts electrical pulses into discrete mechanical
movements. The shaft or spindle of a stepper motor
rotates indiscrete step increments when electrical
command pulses are applied to it in the proper
sequence. The motors rotation has several direct
relationships to these applied input pulses. The
sequence of the applied pulses is directly related to
the direction of motor shafts rotation. The speed of
the motor shafts rotation is directly related to the
frequency of the input pulses and the length of
rotation is directly related to the number of input
pulses applied.
3. tYPes of stePPer motor
There are three basic type
of stepper motor. They are
as follows
Variable-reluctance motor
Permanent magnet motor
Hybrid motor
5. WHEN TO USE A STEPPER MOTOR
A stepper motor can be a good choice whenever
controlled movement is required They can be used to
advantage in applications where you need to control
rotation angle, speed, position and synchronism.
Because of inherent advantages listed previously,
stepper motor have their place in many different
applications.
6. STEPPER MOTOR
CHARACTERISTICS
1.
2.
3.
4.
Stepper motors are constant power devices.
As motor speed increases, torque decreases.
Steppers exhibit more vibration than other motor
types, as the discrete step tends to snap the rotor
from one position to another.
This vibration can become very bad at some speeds
and can cause the motor to lose torque.
7. TORQUE GENERATION
The torque produced by a stepper motor depends on
several factor.
1. Step rate
2. The drive current in the winding
3. Drive design
The basic relationship which define the intensity of
magnetic flux is defined by:
H = (N x i)/ l
where:
H = Magnetic flux intensity
N = The number of winding turns
l = Magnetic flux path length
8. SIZE AND POWER
In addition to being classified by their step angle stepper motors
are also classified according to frame sizes
which correspond to the diameter of the body of the motor. For
instance a size 11 stepper motor has a body diameter of
approximately 1.1 inches. Likewise a size 23 stepper motor
has a body diameter of 2.3 inches (58 mm), etc. The body
length may however, vary from motor to motor within the
same frame size classification. As a general rule the available
torque output from a motor of a particular frame size will
increase with increased body length.
Power levels for IC-driven stepper motors typically range from
below a watt for very small motors up to 10 –20 watts for
larger motors. The maximum power dissipation level or
thermal limits of the motor are seldom clearly stated in the motor
manufacturers data. To determine this we must apply the
relationship PÊ=V ´ÊI.
9. THE ROTATING MAGNETIC FIELD
When a phase winding of a stepper motor is energized
with current a magnetic flux is developed in the stator.
The direction of this flux is determined by the “Right
Hand Rule”
The magnetic flux path developed when phase is
energized with winding current in the direction. The rotor
then aligns itself so that the flux opposition is minimized.
In this case the motor would rotate clockwise so that its
south pole aligns with the north pole and its north pole is
aligns with the south pole. To get motor rotate we can
provide a sequence of energizing the stator winding in
such a fashion that provides a rotating magnetizing flux
field which the rotor follows due to magnetic attraction
13. AdvAntAges
1. Excellent response to starting/stopping/
reversing.
2. It is possible to achieve very low speed synchronous
rotation with a load that is directly coupled to the shaft.
3.The motors response to digital input pulses provides
open-loop control, making the motor simpler and less
costly to control.
The motor has full torque at standstill
(if the windings are energized)
15. APPLICAtIOns
Computer-controlled stepper motors are one of the most versatile forms of
positioning systems. They are typically digitally controlled as part of an
open loop system, and are simpler and more rugged than closed loop servo
systems.
Industrial applications are in high speed pick and place equipment and
multi-axis machine CNC machines often directly driving lead screws or
ballscrews. In the field of lasers and optics they are frequently used in
precision positioning equipment such as linear actuators, linear stages,
rotation stages, goniometers, and mirror mounts. Other uses are in
packaging machinery, and positioning of valve pilot stages for fluid
control systems.
Commercially, stepper motors are used in floppy disk drives, flatbed
scanners, computer printers, plotters, slot machines, and many more
devices.
Some people looking for generators for homemade Wind Turbines found
success in using stepper motors for generating power.