Vishwakarma Institute of Technology B.E. (Electronics)
Vishwakarma Institute of Technology B.E. (Electronics) Vishwakarma Institute of Technology B.E. (Electronics)
Bansilal Ramnath Agarwal Charitable Trust’s Vishwakarma Institute of Technology, Pune – 411 037 Department of Electronics Engineering FF No. : 654 EC30106:: POWER ELECTRONICS Credits: 03 Teaching Scheme: - Theory 3 Hrs/Week Prerequisites: Basics of semiconductor devices, Fourier series analysis approach Objectives: • To explain the necessity of power conversion. • To discuss physics & applications of various devices used for conversion • To explain techniques & control of power conversions • To apply analytical tools for performance evaluation • Mapping with PEO : 1,2,3,6,7,8,9 Unit I POWER DEVICES (10 Hrs) A. Structural modifications for power devices. Structure, Characteristics, ratings of Power Diode SCR, GTO, IGBT Comparison of above devices with Power MOSFET & Power BJT Driver Circuits (isolated & non-isolated) for IGBT & SCR Commutation circuits for SCR Protection circuits for IGBT & SCR B. Comparison of all power devices and suitability for applications. Silicon Carbide (SiC), Gallium Nitride (GaN)-based power devices. Suitability of these devices for high power circuits. Unit II CONTROLLED RECTIFIER Structure & Syllabus of B.E (Electronics ) Program – Pattern ‘C11’, Rev01, dt. 2/4/2011 26 (8 Hrs) A. Concept of line commutation. Single-phase half wave and full wave controlled rectifier: Circuit diagram, operation, waveforms for resistive and level (highly inductive) loads. Single phase semi and full bridge controlled rectifier: Circuit diagram, operation, waveforms for R, L and RLE loads. Average and RMS expressions for o/p voltage. Fourier analysis of supply current. Performance metrics : Fundamental power factor, Current distortion factor, Active, reactive & apparent power. B. Numericals based on converters.
Bansilal Ramnath Agarwal Charitable Trust’s Vishwakarma Institute of Technology, Pune – 411 037 Department of Electronics Engineering Unit III INVERTERS DC / AC (8 Hrs) A. Half bridge and push pull type inverters : Circuit diagram, operation & waveforms. Full bridge inverters: Circuit diagram, operation & waveforms for R & RL loads. Switching techniques for obtaining square, quasi-square o/p waveforms. Fourier analysis of square and quasi-square voltage waveform & harmonics. Harmonic reduction techniques. Advantage of sine weighted PWM over single pulse PWM techniques. Inverter configuration for IM drive B. Numericals based on Inverter performance. Unit IV SWITCHED & RESONANT DC/ DC CONVERTERS (8 Hrs) A. Step Up / Down chopper: Circuit diagram, operation and waveforms for R and L load. Load voltage calculations. Two-quadrant, Four-quadrant chopper. Circuit diagram, operation and waveforms for R and L load. Chopper DC motor drives. SMPS : Circuit diagram, operation and waveforms, of Fly back converter and forward converter. Need for resonant converters. ZVS, ZCS Switches. B. Comparison of linear, switched and resonant power supplies. Unit V APPLICATIONS OF POWER ELECTRONICS (6 Hrs) A. Study of power circuits for Electronic ballast , HF induction heating, RF heating, Welding. ON-line and OFF line UPS, battery selection and design considerations. HVDC transmission, twelve pulse converter, and advantages over HVAC transmission. Stator voltage control for IM motors B. Industrial applications of motor drives, Study of Cycloconverter. Text Books 1. M. H. Rashid, “POWER ELECTRONICS circuits devices and applications”, PHI, 3 rd edition, 2004. 2. M D Singh, K B Khanchandani, “POWER ELECTRONICS”,2 nd Ed. TMH. Reference Books 1. N. Mohan, T. M. Undeland & W. P. Robbins, “POWER ELECTRONICS, Converters Applications and Design” John Willey and sons, 3 rd edition, Singapore 2. P. C. Sen,”MODERN POWER ELECTRONICS”, S Chand & Co., New Delhi Structure & Syllabus of B.E (Electronics ) Program – Pattern ‘C11’, Rev01, dt. 2/4/2011 27
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Bansilal Ramnath Agarwal Charitable Trust’s<br />
<strong>Vishwakarma</strong> <strong>Institute</strong> <strong>of</strong> <strong>Technology</strong>, Pune – 411 037<br />
Department <strong>of</strong> <strong>Electronics</strong> Engineering<br />
Unit III<br />
INVERTERS DC / AC<br />
(8 Hrs)<br />
A. Half bridge and push pull type inverters : Circuit diagram, operation & waveforms.<br />
Full bridge inverters: Circuit diagram, operation & waveforms for R & RL loads.<br />
Switching techniques for obtaining square, quasi-square o/p waveforms.<br />
Fourier analysis <strong>of</strong> square and quasi-square voltage waveform & harmonics.<br />
Harmonic reduction techniques. Advantage <strong>of</strong> sine weighted PWM over single pulse<br />
PWM techniques.<br />
Inverter configuration for IM drive<br />
B. Numericals based on Inverter performance.<br />
Unit IV<br />
SWITCHED & RESONANT DC/ DC CONVERTERS<br />
(8 Hrs)<br />
A. Step Up / Down chopper: Circuit diagram, operation and waveforms for R and L load.<br />
Load voltage calculations.<br />
Two-quadrant, Four-quadrant chopper. Circuit diagram, operation and waveforms for R<br />
and L load. Chopper DC motor drives.<br />
SMPS : Circuit diagram, operation and waveforms, <strong>of</strong> Fly back converter and forward<br />
converter.<br />
Need for resonant converters. ZVS, ZCS Switches.<br />
B. Comparison <strong>of</strong> linear, switched and resonant power supplies.<br />
Unit V<br />
APPLICATIONS OF POWER ELECTRONICS<br />
(6 Hrs)<br />
A. Study <strong>of</strong> power circuits for Electronic ballast , HF induction heating, RF heating,<br />
Welding.<br />
ON-line and OFF line UPS, battery selection and design considerations.<br />
HVDC transmission, twelve pulse converter, and advantages over HVAC transmission.<br />
Stator voltage control for IM motors<br />
B. Industrial applications <strong>of</strong> motor drives, Study <strong>of</strong> Cycloconverter.<br />
Text Books<br />
1. M. H. Rashid, “POWER ELECTRONICS circuits devices and applications”, PHI, 3 rd<br />
edition, 2004.<br />
2. M D Singh, K B Khanchandani, “POWER ELECTRONICS”,2 nd Ed. TMH.<br />
Reference Books<br />
1. N. Mohan, T. M. Undeland & W. P. Robbins, “POWER ELECTRONICS,<br />
Converters Applications and Design” John Willey and sons, 3 rd edition,<br />
Singapore<br />
2. P. C. Sen,”MODERN POWER ELECTRONICS”, S Chand & Co., New Delhi<br />
Structure & Syllabus <strong>of</strong> B.E (<strong>Electronics</strong> ) Program – Pattern ‘C11’, Rev01, dt. 2/4/2011<br />
27
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