Solid State Diagrammatic Question

UNIT 1

1.    Draw the essential parts of electrical drive.

2.    Speed torque characteristics – various loads

3.    Multi quadrant dynamics in the speed torque plane.

4.    Modes of operation of an electrical drive

UNIT 2

1.    Draw the operation of single phase fully controlled converter fed separately excited dc motor with neat waveforms.

2.    Draw the regenerative operation of three phases fully controlled rectifier of a separately excited dc motor.

3.    Draw the time ratio control and current limit control

4.    Draw the  operation of  four quadrant  dc chopper drive

UNIT 3

1.     Draw the voltage /frequency control of induction motor drives.

2.     Draw the stator voltage control of induction motor drives.

3.      Drawl the static rotor resistance control in the induction motor

4.     Draw the vector control of induction motor drives

5.    Draw the closed loop speed control of CSI fed induction motor drive.

6.    Draw the closed loop control for VSI Induction motor drives.

UNIT 4

1.    Block diagram the operation of a voltage source inverter fed synchronous motor in the true synchronous mode.

2.    Open loop volts/Hertz control of VSI fed synchronous motor with a neat diagram.

3.    Draw the  concept of self control techniques

4.     Draw the power factor control of synchronous motor.

5.   Draw the constant margin angle control technique  of self controlled  synchronous motor drive employing  load commutated  thyristor inverter 

UNIT 5

1.    Draw the closed loop speed control   for armature  voltage control  and field weakening mode for a dc drive