Title :
Design of a harmonic free three-phase UPS
Author :
Dell´Aquila, Antonio ; Liserre, Marco ; Cecati, Carlo
Author_Institution :
Dipt. di Elettrotecnica ed Elettronica, Bari Univ., Italy
Abstract :
In this paper a novel three phase, step-up, converter for industrial UPS applications is proposed. The system basically consists of three, star-connected, boost-type DC/DC converters working together like a three-phase voltage source inverter, but with intrinsic step-up capability. The main advantages of the system are the smaller dimensions of the passive components and the reduced number of switching devices that do not need reverse voltage blocking capability. Test results show the effectiveness of the proposed system both during steady state and dynamic operations as well.
Keywords :
DC-AC power convertors; DC-DC power convertors; electric current control; uninterruptible power supplies; variable structure systems; 1200 V; 75 A; DC-AC conversion; dynamic operation; harmonic free three-phase UPS; industrial UPS applications; intrinsic step-up capability; passive components dimensions; sliding mode controller; star-connected boost-type DC/DC converters; steady state operation; three phase step-up converter; three-phase voltage source inverter; Batteries; Capacitors; Mathematical model; Power supplies; Pulse width modulation inverters; Steady-state; Switching converters; Total harmonic distortion; Uninterruptible power systems; Voltage;
Conference_Titel :
IECON 02 [Industrial Electronics Society, IEEE 2002 28th Annual Conference of the]
Print_ISBN :
0-7803-7474-6
DOI :
10.1109/IECON.2002.1182848
