06EE45 - Power Electronics Regulation 2006 - 2007 |
PART – A |
UNIT – I Introduction, Power Semiconductor Devices |
Applications of Power Electronics, Power semiconductor devices, Control Characteristics. Types of power electronic circuits. Peripheral effects |
UNIT – II Power Transistors |
Power BJT’s – switching characteristics, switching
limits, base drive control. Power MOSFET’s – switching characteristics,
gate drive. IGBT’s, di/dt and dv/dt limitations. Isolation of gate and base
drives. Simple design of gate and base drives |
UNIT – III Thyristors. |
Introduction, characteristics. Two Transistor Model. Turn-on and turn-off.
di/dt and dv/dt protection. Thyristor types. Series and parallel operation of
Thyristors. Thyristor firing circuits. Simple design of firing circuits using
UJT, op-amps, and digital IC’s. |
UNIT - VI Commutation Techniques |
Introduction. Natural Commutation. Forced
commutation: self commutation, impulse commutation, resonant pulse
commutation and complementary commutation. |
PART – B |
UNIT – V AC Voltage Controllers |
Introduction. Principle of ON-OFF and phase
control. Single-phase bidirectional controllers with resistive and inductive
loads. |
UNIT – VI Controlled Rectifiers |
Introduction. Principle of phase controlled converter
operation. Single- phase semi-converters. Full converters. Three-phase halfwave
converters. Three-phase full-wave converters
|
UNIT – VII DC Choppers |
Introduction. Principle of step-down and step-up chopper
with R-L load. Performance parameters. Chopper classification. Analysis of
impulse commutated thyristor chopper (only qualitative analysis)
|
UNIT – VIII Inverters |
Introduction. Principle of operation. Performance parameters.
Single-phase bridge inverters. Threephase inverters. Voltage control of
single-phase inverters – single pulse width, multiple pulse width, and
sinusoidal pulse width modulation. Current source inverters. Variable D.C.
link inverter.
|
REFERENCE |
TEXT BOOKS: |
1. “Power Electronics”, M.H.Rashid 2nd Edition, P.H.I. /Pearson, New Delhi, 2002.
|
Reference Books |
1. “Power Electronics – Converters, Applications and Design”, Net
Mohan, Tore M. Undeland, and William P. Robins, Third Edition, John
Wiley and Sons.
2. “Thyristorised Power Controllers”, G.K. Dubey, S.R. Doradla, A.
Joshi and R.M.K. Sinha, New Age International Publishers.
3. “Power Electronics”, M.D. Singh and Khanchandani K.B., T.M.H.,
2001.
4. “Power Electronics”, Cyril Lander, 3rd Edition, McGraw-Hill.
6. “Power Electronics: Principles and Applications”, J.M. Jacob,
Thomson – Vikas Publications.
6. “Power Electronics : A Simplified Approach”, R.S. Ananda Murthy
and V. Nattarasu, Sanguine Technical Publishers.
|