Download Electric Motors and Drives PDF
Electric Motors and Drives PDF
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About Of The Book :
This book examines the most common types of modern engines in use
and drives, including traditional DC motors and brushless, induction motors
(grid and inverter), stepper motor, synchronous motor (grid
and supported by rotation) in a reluctance motor. The d.c. motor drive and
Asynchronous motors are the most important, showing their highest position in terms of numbers. Understanding d.c. the reader is
especially important as it is still used in many areas such as cover for
References to other drives: generators of good law d.c.
The drive will find that knowing it is more valuable than all other types,
especially if they can be firmly established in the philosophy of
management plan.
Young readers may not be aware of the changes
has happened in the last 40 years, so maybe a few paragraphs
apt to put the current situation into perspective. For more than this
century, many different types of engines were created, and each one is closely related to one application. For example, traction is considered as a special capability of the d.c. system. engine, when
d.c. The shunt was considered an engine, although it could not be identified
being very poor for traction applications. The squirrel-cage induction motor
was (and still is) in common use but was considered only convenient
for applications that require constant speed. The reason for the plethora of engine types is that there is no easy way to change power
voltage and / or frequency to achieve speed control, and the generators have been
therefore forced to find a way to control the speed and
the engine itself. All kinds of awesome designs and links of
Motor windings were developed, but even the best motors have a limited number
different types of work, and they all require extensive management
equipment used to move equipment, manually or electronically operated, made it difficult to organize automatic or remote control.
All this changed in the early 1960s when electricity was introduced
to feel. The first breakthrough came with the thyristor.
which provided a cheap, compact and easy-to-use device
variable speed drive using d.c. engine. In 1970, the second
progress from the development of electricity
inverters, providing a variable three-phase power supply at the end
induction motor and thus control its speed. These major events have caused many of those to disappear
unique motor, leaving many tools in hand
of a few kinds, and the emphasis is now gone
complex in the engine to the sophistication of power and control
arrangements.
From a user's perspective, this is a mixed blessing. Greater flexibility and higher levels of performance are available, and available
There are a few engine models to consider. If anything more than speed
important, the user will face the purchase of a complete drive
a system consisting of a motor and an integrated power electronics. Choosing wisely requires not only some knowledge of
motor but also the power electronics associated with the control options that are usually offered.
Contents Of The Book :
1 ELECTRIC MOTORS
2 POWER ELECTRONIC CONVERTERS FOR MOTOR DRIVES
3 CONVENTIONAL D.C. MOTORS
4 D.C. MOTOR DRIVES
5 INDUCTION MOTORS – ROTATING FIELD, SLIP AND TORQUE
6 OPERATING CHARACTERISTICS OF INDUCTION MOTORS
7 INDUCTION MOTOR EQUIVALENT CIRCUIT
8 INVERTER-FED INDUCTION MOTOR DRIVES
9 STEPPING MOTORS
10 SYNCHRONOUS, BRUSHLESS D.C. ANDSWITCHED RELUCTANCE DRIVES
11 MOTOR/DRIVE SELECTION
APPENDIX – INTRODUCTION TO CLOSED–LOOP
Information Of The Book :
Title: Electric Motors and Drives Download PDF
Size: 6 Mb
Pages: 431
Year : 2007
Format: PDF
Language : English
Author: