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dq transformation in matlab
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The Park and Clarke vector transforms are one of the keys to vector control of induction motors.
I) Clarke transform
The forward Clarke (1943) transform does a magnitude invariant translation from a three phase
system into two orthogonal components. If the neutral - ground connection is neglected, the
variables in a three-phase system (A, B, and C) sum is equal to zero, and there is a redundant
information.
imransha 1 0
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VFD induction motor control
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The induction motors are very common because they are inexpensive and robust, finding use in
everything from industrial applications such as pumps, fans, and blowers to home appliances.
Traditionally, induction motors have been run at a single speed, which was determined by the
frequency of the main voltage and the number of poles in the motor. Controlling the speed of an
induction motor is far more difficult than controlling the speed of a DC motor since there is no
linear relationship between the motor current and the resulting torque as there is for a DC motor.
The technique called vector control can be used to vary the speed of an induction motor over a
imransha 2016-08-23
imransha 1 0
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