Title :
Power factor correction of a single-phase on-line UPS with the half-bridge inverter
Author_Institution :
Dept. of Electr. Eng., Nat. Yunlin Inst. of Technol., Taiwan
Abstract :
The power factor correction (PFC) scheme of the conventional on-line UPS with the half-bridge inverter is proposed and described. A correction method for the positive voltage boost stage is like the well-established boost corrector, but the PFC circuit of the negative voltage boost stage is different. The power factor of unbalanced loads can be still close to unity by the proposed scheme. Design considerations for the half-power positive or negative boost corrector are also presented and discussed. The experiment has been conducted to verify the proposed circuit
Keywords :
bridge circuits; invertors; power factor correction; uninterruptible power supplies; half-bridge inverter; half-power negative boost corrector; half-power positive boost corrector; negative voltage boost stage; positive voltage boost stage; power factor correction; single-phase on-line UPS; unbalanced loads; Circuits; Inverters; Power factor correction; Power quality; Power supplies; Reactive power; Switches; Telecommunication computing; Uninterruptible power systems; Voltage control;
Conference_Titel :
Industrial Electronics, Control, and Instrumentation, 1996., Proceedings of the 1996 IEEE IECON 22nd International Conference on
Conference_Location :
Taipei
Print_ISBN :
0-7803-2775-6
DOI :
10.1109/IECON.1996.570746
