EE 8601 Solid state drives (SSD)

                        EE 8601 Solid state drives (SSD)

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     S.Santhosh (Admin) 
Important questions 
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UNIT-1

1.Multi Quadrant

2.Steady State Stability

3.N/T characteristics of various load

4.Dynamics of Motor load

UNIT-2

1.3ø,1ø fully controlled rectifier

2.Four Quadrant chopper

3.Steady state Analysis ,control strategies

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UNIT-3

1.Frequency  control

2VSI,CSI

3.Stepped wave inverter

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UNIT-4

1.Power factor control

2.VSI & PWM

3.marginal angle control and self control of load commutated inverter.

UNIT-5

1.Design procedure of I & N controller.

2.Transfer function of  dc motor

3.Closed loop speed control

4.rare converter selection and characteristics

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**Very important questions are bolded and may be asked based on this topic

PART-C

1.Compulsory Questions {a case study where the student will have to read and analyse the subject }

mostly asked from unit (OR) a Problem given

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SYLLABUS

UNIT I DRIVE CHARACTERISTICS  
Electric drive – Equations governing motor load dynamics – steady state stability – multi quadrant 
Dynamics: acceleration, deceleration, starting & stopping – typical load torque characteristics – Selection of motor. 
UNIT II CONVERTER / CHOPPER FED DC MOTOR DRIVE  
Steady state analysis of the single and three phase converter fed separately excited DC motor drive– 
continuous conduction – Time ratio and current limit control – 4 quadrant operation of converter / 
chopper fed drive-Applications. 
UNIT III INDUCTION MOTOR DRIVES  
Stator voltage control–V/f control– Rotor Resistance control-qualitative treatment of slip power 
recovery drives-closed loop control–– vector control- Applications. 
UNIT IV SYNCHRONOUS MOTOR DRIVES  
V/f control and self-control of synchronous motor: Margin angle control and power factor control- Three phase voltage/current source fed synchronous motor- Applications. 
UNIT V DESIGN OF CONTROLLERS FOR DRIVES  
Transfer function for DC motor / load and converter – closed loop control with Current and speed 
feedback–armature voltage control and field weakening mode – Design of controllers; current 
controller and speed controller- converter selection and characteristics