Syllabus B Tech Seventh Semester Power Electronics EC7004

Syllabus Seventh Semester

Syllabus Seventh Semester Power Electronics EC7004

The concepts developed in this course will aid in quantification of several concepts in chemistry that have been introduced at the 10+2 levels in schools. Technology is being increasingly based on the electronic, atomic and molecular level modifications, Syllabus Sixth Semester Power Electronics EC7004 is given here.

Quantum theory is more than 100 years old and to understand phenomena at nanometer levels, one has to base the description of all chemical processes at molecular levels. The course will enable the student to:

  • Analyse microscopic chemistry in terms of atomic and molecular orbitals and intermolecular forces.
  • Rationalise bulk properties and processes using thermodynamic considerations.
  • Distinguish the ranges of the electromagnetic spectrum used for exciting different molecular energy levels in various spectroscopic techniques
  • Rationalise periodic properties such as ionization potential, electronegativity, oxidation states and electronegativity.
  • List major chemical reactions that are used in the synthesis of molecules.

EC 7004 – Power Electronics

Unit 1
Advantages and application of power electronic devices characteristics, Symbol &application of power diodes, power transistors, GTO, TRIAC, DIAC, Power MOSFET, IGBT, LASCR, Fast recovery diode, schottkey diode MCTs. Principle of operation of SCR, Two transistor analogy, brief idea of construction of SCR, Static characteristics of SCR, Condition of turn on & off of SCR Gate characteristics, Method for turning on of SCR, Turnoff methods, different commutation techniques (Class A,B,C,D,E, & F Commutation) firing of SCR, Resistance firing circuit, Resistance, capacitance firing circuit, UJT firing cut, protection of SCR over voltage, Over current, Superior firing, Design of snubber circuit and protection of gate of SCR, heating, cooling & mounting of SCR
Unit 2
Operation and analysis of single phase (Half wave & Full Wave) and multiphase (Three Phase) uncontrolled and controlled rectifier circuit with resistive, resistive& inductive load (continuous & non continuous conduction, inductive loads and RLE loads. Estimation of average load voltage and load current for above rectifier circuits active and reactive power input. Effect of freewheeling diode and source inductance on performance of this rectifier circuits Comparison of mid-point& Bridge rectifier circuits. Power factor correction, simulation and modeling of convertor topologies in Matlab/Simulink
Unit 3
Voltage source & current source inverter, Single phase and three phase bridge inverter, self cumulated inverters, Mcmurray & Mcmurray bed ford inverters, Voltage control of single phase and three phase bridge inverter, Harmonics & their reduction techniques. Simulation and modeling of single phase and three phase inverters in Matlab/Simulink.
Unit 4

Principle of chopper operation, various control strategies in chopper, Step up &step-up/step down choppers, chopper configuration (Type A, B, C, D, & E), Current & voltage commutation of chopper circuits Jones & Morgens chopper. Simulation and modeling of choppers in Matlab/Simulink.

Unit 5

Single phase (midpoint & bridge configuration) and three phase cyclic convertor configuration and operating principles.AC voltage controllers (using SCRs &TRIACs) single phase full wave controller with R and RL load, Estimation of RMS load voltage, RMS load current and input power factor, three phase AC voltage controller (Without analysis)Switched mode voltage regulator buck, Boost, Buck & Boost, Cuck regulators.

Books Recommended

1. M.H. Rashid, Power Electronics Circuits, Devices and Applications, Pearson Education, Singapore, 1993.
2. M Ramsmoorthy, An Introduction to transistor and their application, Affiliated East-West Press.
3. Shailendra Jain, Modeling and Simulation using Matlab Simulink, Wllley India Pvt. Ltd.
4. M.D. Singh, K.B. Khanchandani, Power Electronics, TMH, Delhi, 2001.
5. Chakravarti A., Fundamental of Power Electronics and Drives, Dhanpat Ray &Co.
6. Dr. P.S. Bhimbhra, Power Electonics, Khanna Pub.
7. Vedam Subramanyam, Power Electronics New Age International Revised II ed.2006.
8. Randall Shaffer, Fundaments of Power Electronics with MATLAB Cengage Learning 2008