Title :
Four-Wire Unidirectional Three-Phase/Level/Switch (VIENNA) Rectifier
Author :
Alahuhtala, Jarno ; Tuusa, Heikki
Author_Institution :
Inst. of Power Electron., Tampere Univ. of Technol.
Abstract :
This paper presents a four-wire Vienna rectifier (VIENNA4) and proposes a control system capable of balancing the partial DC link voltages in both symmetrical and asymmetrical loads. The main application for this type of rectifier is a transformerless AC-DC-AC converter used in uninterruptible power supplies (UPS). The proposed control scheme is verified by simulations and the measurements from the prototype. The rectifier system was designed to operate at a nominal output power of 10 RW with a DC link voltage of 700 V. The digital implementation of the control system and the modulator are realised with Motorola MPC555 microcontroller
Keywords :
AC-DC power convertors; DC-AC power convertors; rectifying circuits; uninterruptible power supplies; 10 kW; 700 V; AC-DC-AC converter; Motorola MPC555 microcontroller; UPS; VIENNA; asymmetrical loads; four-wire unidirectional rectifier; partial DC link voltages; three-level rectifier; three-phase rectifier; three-switch rectifier; uninterruptible power supplies; Analog-digital conversion; Control systems; Digital modulation; Microcontrollers; Power generation; Rectifiers; Switches; Uninterruptible power systems; Virtual prototyping; Voltage control;
Conference_Titel :
IEEE Industrial Electronics, IECON 2006 - 32nd Annual Conference on
Conference_Location :
Paris
Print_ISBN :
1-4244-0390-1
DOI :
10.1109/IECON.2006.347743
