Title :
Control and implementation of a three-phase voltage-doubler reversible AC to DC converter
Author :
Pan, Ching-Tsai ; Jiang, Maoh-Chin
Author_Institution :
Dept. of Electr. Eng., Nat. Tsing Hua Univ., Hsinchu, Taiwan
Abstract :
In this paper, a novel three-phase bidirectional interface is proposed by using only four active switches to simplify the hardware circuit and achieve unity power factor, sinusoidal input current, adjustable output voltage and bidirectional power flow capability. To ensure obtaining clean input current waveform, the current tracking mechanism is analyzed together with graphical aid and some critical design conditions are presented. Finally, a small-signal model is derived and, in addition to the feedback control, an instantaneous voltage detector is proposed for the added feedforward control to achieve almost zero output impedance and zero audio susceptibility. A prototype hardware circuit is constructed and some experimental results are presented for demonstration
Keywords :
AC-DC power convertors; circuit testing; control system analysis; control system synthesis; feedback; feedforward; load flow; network analysis; network synthesis; power system harmonics; rectifiers; switching circuits; voltage control; voltage multipliers; active switches; adjustable output voltage; bidirectional interface; bidirectional power flow; feedback control; feedforward control; hardware circuit; instantaneous voltage detector; reversible AC/DC power convertor; sinusoidal input current; small-signal model; testing; three-phase voltage-doubler; unity power factor; zero audio susceptibility; zero output impedance; Bidirectional power flow; Detectors; Feedback control; Hardware; Impedance; Prototypes; Reactive power; Switches; Switching circuits; Voltage control;
Conference_Titel :
Power Electronics Specialists Conference, 1995. PESC '95 Record., 26th Annual IEEE
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-2730-6
DOI :
10.1109/PESC.1995.474847
