EE-701-ELECTRICAL DRIVES |
Electrical drive: |
Concept, classification, parts and advantages of electrical dives.
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Dynamics of Electrical Drives: |
Types of Loads, Components of load toques, Fundamental torque
equations, Equivalent value of drive parameters for loads with rotational and translational motion. Steady
state stability, Transient stability. Multiquadrant operation of drives. Load equalization. |
Motor power rating: |
Thermal model of motor for heating and cooling, classes of motor duty,
determination of motor rating for continuous, short time and intermittent duty, equivalent current, torque
and power methods for fluctuating and intermittent loads.
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Stating of Electric Drives: |
Effect of starting on Power supply, motor and load,
Methods of stating of electric motors, Acceleration time Energy relation during stating, methods to reduce
the Energy loss during starting.
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Braking of Electric Drives: |
Types of braking, braking of DC motor, Induction motor and Synchronous
motor, Energy loss during braking, |
DC motor drives: |
Single phase, three phases fully controlled and half controlled rectifier fed DC drives.
Dual converter control of DC drives. Power factor, supply harmonics and ripple in motor current. Chopper
control of DC drives.
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Induction motor drives: |
Stator voltage variation by three phase controllers, Speed control using chopper
resistance in the rotor circuit, slip power recovery scheme. Pulse width modulated inverter fed and current
source inverter fed induction motor drive. Volts/Hertz Control, Vector or Field oriented control. |
Synchronous motor drive: |
Variable frequency control, Self Control, Voltage source inverter fed
synchronous motor drive, Vector control. |
Introduction to Solar and Battery Powered Drive, Stepper motor, Switched Reluctance motor drive |
Industrial application: |
Drive consideration for Textile mills, Steel rolling mills, Cement mills, Paper
mills, Machine tools. Cranes & hoist drives. |
Text Books: |
1. Fundamental of Electrical Drives, G.K. Dubey, New Age International Publication.
2. Electric Drives, Vedam Subrahmanyam, TMH
3. A first course on Electrical Drives, S.K. Pillai, , New Age International Publication.
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Reference Books: |
1. Electric motor Drives, R. Krishnan, Pearson Education.
Modern power Electronics and AC drives , Bimal K Bose, PHI
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