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The exhaustive list of topics in Power Electronics in which we provide Help with Homework Assignment and Help with Project is as follows:

  • Application of Power Electronics to :
    • Motor control with emphasis on Traction and Industrial Process control
    • Power Supplies - Revolution in Personal Computers UPS
    • Power Transmission - Facts Technology, HVDC
    • Chemical Process
    • Battery charging
    • Power extraction from non-conventional enery sources
    • Automotive electronics
    • High energy physics Evolution of Power Electronics
  • Structure of Power Electronics: How structurally power electronics differs from low power analog electronics
  • Different types of switches:
    • Power Diodes: from the viewpoint of an application engineer
    • SCR: Device structure, Static characteristic, dynamic characteristic constraints of Turn on and Turn off time, different relevant ratings.
  • Diode rectifiers Applications: Power Supplies, Front end converter for ac motor drives, battery charger, chemical process:
    • Single phase Half wave with R load
    • Single phase Half wave with R-L load
    • Single phase Full bridge rectifier with dc link capacitive filter, issue of harmonics
    • Three phase Full bridge rectifier with dc link capacitive filter, issue of harmonics
  • AC to DC controlled converters
  • Application: DC Motor Drives
  • Battery chargers
  • HVDC transmission
  • Single phase fully controlled AC to DC converter:
  • Principle of operation: Issue of line commutation
  • Continuous mode of conduction: expression for average output voltage
  • Modes of operation in the voltage-current plane
  • Discontinuous mode of conduction
  • Analysis with R-L-E load, significance of R-L-E load
  • Operation as an inverter: constraints for line commutation
  • Dual converter: motivation Simultaneous and nonsimultaneous control
  • Input displacement factor, distortion factor, harmonics
  • Effect of source inductance
  • Requirement of snubber
  • Single phase half controlled converter:
  • operating principle,
  • Input displacement factor
  • Modes of operation in the voltage-current plane
  • Three phase half wave ac to dc converter:
    • Principle of operation
    • Derivation of o/p voltage
    • Issue of dc magnetization of the input transformer
  • Three phase fully controlled ac to dc converter:
    • Principle of operation
    • Derivation of average output voltage
    • Derivation of displacement factor
  • Inverter mode of operation
  • Constraints of commutation in inverter mode
  • Effect of source inductance
  • Limitation of Line commutated converters:
    • Single phase unity powerfactor converter
    • Principle of switched Power power conversion
    • Bi-directional Power converters
    • DC- DC Power Converters
    • Limitations of Linear Power supplies
    • Switched Power Power supplies ( Buck, Buck-Boost, Boost,Cuk, Fly-back and Forward Convverters)
    • Transfer fucntion for these converters
    • DC- AC Power Converters
    • Principle of operation of Inverters Half bridge, full bridge, three phase- six step operation, voltage control, PWM techniques