Q4Power Electronics

Question

(a) Discuss the working principle of a single-phase full-wave fully controlled converter with RL load under continuous mode of conduction and discontinuous mode of conduction. (b) Sketch neat waveforms for source voltage, output voltage, load current, and source current in each case.

Answer 1

Question

4 marks

(a) Discuss the working principle of a single-phase full-wave fully controlled converter with RL load under continuous mode of conduction and discontinuous mode of conduction. (b) Sketch neat waveforms for source voltage, output voltage, load current, and source current in each case.

Answer

A single-phase fully controlled converter with RL load conducts continuously when α < φ and discontinuously when α > φ; the waveforms differ significantly in load current shape and source current polarity.