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A.C. to D.C. power converters assignment help by experienced tutors

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The exhaustive list of topics in A.C. to D.C. Power Converters in which we provide Help with Homework Assignment and Help with Project is as follows:

  • Basic rectifier operation:
    • Half wave Diode Rectifiers
    • With /without free wheeling diode.
    • Notion of Line Commutation and Freewheeling.
    • Evolution of Single phase bridge from center-tap transformer-rectifier.
    • Effect of source inductance and overlap angle
    • Current distribution.
    • Power Supply application with L & LC filter.
    • Three Phase bridge rectifiers with diodes.
    • Commutation  Process.
    • Analysis of Independent Commutations.
    • Commutation overlap at high current
    • Simultaneous commutations
    • V-I diagram till short circuit.
    • Three Pulse rectifier zigzag transformer connection for m.m.f. balancing.
    • Half Controlled Operation.
  • Three Phase Rectifiers:
    • Three Phase Rectifiers, with thyristors.
    • Gating Requirements.
    • Output Voltage expression
    • Device voltage waveform
    • Turn-off time.
    • Overlap angle
    • Loss of voltage
    • Limit of independent commutations.
    • Operation with overlapping commutations
    • V-I characteristic till short-circuit at the output.
    • Multi-phase rectifiers
    • Basic configurations.
    • Line current waveforms and rating with various transformer connections(star-star, star-delta, star-double star).
    • Paralleling of bridges with inter-phase reactor.
    • Sequence control of two series connected bridges.
    • Two and four quadrants Operation Using Dual converter.
    • Low Frequency Waveform generation using delay angle modulation.
  • Switch Mode rectifiers:
    • Rectifier circuits with ideal switches.
    • Single phase configuration with 2 & 4 switches.
    • Modulation strategies (SAC, EAC, PWM).
    • Two Quadrant converter operation.
    • Three phase PWM Converter: Constant current operation.
    • Three phase PWM Converter: Operation with constant voltage load.
  • Applications:
    • Voltage Multipliers using diode bridges.
    • High power current sources using rectifiers.
    • Single phase diode rectifiers with active current shaping.
    • HVDC Converters converter and their control.
    • Control of three phase PWM Converter: using vector control.
    • Converter control for wind power generation.
    • DC distribution and microgrid applications.