Title :
A new topology for single phase UPS systems
Author_Institution :
Dept. of Electr. & Comput. Eng., Wisconsin Univ., Madison, WI, USA
Abstract :
A power converter topology suitable for online single-phase uninterruptible power supply (UPS) systems is presented. The converter uses only four switches, five if a low-voltage battery and resonant link operation are required, to realize very desirable features. These include independent control of the input and output currents a common neutral connection, line conditioning, sinusoidal input currents independent of load current, and battery charge/discharge regulation. Detailed simulation results and experimental results are included.<>
Keywords :
power convertors; uninterruptible power supplies; common neutral connection; converter topology; electric current control; line conditioning; low-voltage battery; resonant link; simulation; single phase UPS; switches; Active filters; Batteries; Circuits; Diodes; Power conversion; Pulse width modulation; Pulse width modulation inverters; Topology; Uninterruptible power systems; Voltage;
Conference_Titel :
Industry Applications Society Annual Meeting, 1989., Conference Record of the 1989 IEEE
Conference_Location :
San Diego, CA, USA
DOI :
10.1109/IAS.1989.96755