Title :
Minimum-loss PWM strategy for 3-phase PWM rectifier
Author :
Chung, Dae-Woong ; Sul, Seung-Ki
Author_Institution :
Sch. of Electr. Eng., Seoul Nat. Univ., South Korea
Abstract :
In this paper, the conduction and switching losses of a three-phase PWM rectifier are analyzed for various PWM schemes. On the basis of these results, a novel PWM strategy which minimizes the loss of a voltage-fed three-phase PWM rectifier is developed. This minimization results from the following two factors: (a) low switching frequency ratio; and (b) absence of switching in the vicinity of peak input current. The effectiveness of the proposed PWM strategy is verified by both simulation and experimental results
Keywords :
AC-DC power convertors; PWM power convertors; losses; rectifying circuits; switching circuits; PWM strategy; conduction losses; loss minimisation strategy; peak input current; switching frequency ratio; switching losses; three-phase PWM rectifier; voltage-fed rectifier; Bidirectional control; Harmonic analysis; Load flow; Pulse width modulation; Pulse width modulation inverters; Rectifiers; Space vector pulse width modulation; Switching frequency; Switching loss; Voltage control;
Conference_Titel :
Power Electronics Specialists Conference, 1997. PESC '97 Record., 28th Annual IEEE
Conference_Location :
St. Louis, MO
Print_ISBN :
0-7803-3840-5
DOI :
10.1109/PESC.1997.616860
