Title :
Feasibility study of a three phase rectifier with sinusoidal net currents
Author :
Anselmi, C. ; Edelmoser, K.
Author_Institution :
Sect. of Power Electron., Tech. Univ. Vienna, Austria
Abstract :
This paper deals with a feasibility study for a power rectifier, which was designed as a power supply for welding equipment. Modern digital control techniques such as software generated pulse width modulation (PWM) and phase locked loop (PLL) realized in software, will be employed. With the use of an advanced single chip microcontroller (MCU) digital and analog circuit design could be reduced to a minimum. The power part is realized as a three phase bridge structure (B6) with six IGBTs with a switching frequency of 15.625 kHz. Due to the duality of the power structure, it is possible to realize both energy directions. The study contains mathematical analysis and simulation, and as a result to these studies a description of a prototype with about 15 kW
Keywords :
AC-DC power convertors; PWM power convertors; bipolar transistor switches; bridge circuits; circuit testing; digital control; insulated gate bipolar transistors; microcontrollers; network analysis; network synthesis; power bipolar transistors; power engineering computing; power semiconductor switches; rectifying circuits; switching circuits; voltage control; 15 kW; 15.625 kHz; IGBTs; PLL; PWM; bidirectional power flow; bridge structure; circuit design; digital control techniques; mathematical analysis; power supply; simulation; single chip microcontroller; sinusoidal net currents; software; switching frequency; testing; three phase rectifier; welding equipment; Digital control; Phase locked loops; Phase modulation; Power supplies; Pulse generation; Pulse width modulation; Pulsed power supplies; Rectifiers; Space vector pulse width modulation; Welding;
Conference_Titel :
Power Electronics and Drive Systems, 1995., Proceedings of 1995 International Conference on
Print_ISBN :
0-7803-2423-4
DOI :
10.1109/PEDS.1995.404948
