Title :
A Novel Topology of APFC with On-Line Half-Bridge UPS Controlled by DSP
Author :
Ma, Xuejun ; Hu, Xuezhi ; Wu, Hongxia ; Chen, XuWu
Author_Institution :
Dept. of Electr. Eng., Huangshi Inst. of Technol.
Abstract :
In this paper, a novel topology of APFC with on-line half-bridge UPS controlled by DSP is presented. The operation principle is analyzed. In order to improve the dynamic response feature of APFC and make the design of LC filter easy, improved current hysteretic control is proposed. A digital control scheme based on DSP is presented. The control model of APFC is simulated with Matlab. In order to verify the analysis, a prototype with 50 Hz/220V/2.2 kW is developed. The simulation and experimental results show the PF of the proposed topology is approximate to 1
Keywords :
bridge circuits; dynamic response; invertors; mathematics computing; power factor correction; 2.2 kW; 220 V; 50 Hz; APFC; DSP; LC filter design; Matlab; UPS; active power factor correction; current hysteretic control; dynamic response feature; on-line half-bridge inverter topology; Circuit topology; Digital control; Digital signal processing; Equivalent circuits; Feedback loop; Hysteresis; Negative feedback; Pulse width modulation inverters; Uninterruptible power systems; Voltage control; APFC; digital control; improved current hysteretic control; simulation;
Conference_Titel :
Power Electronics and Motion Control Conference, 2006. IPEMC 2006. CES/IEEE 5th International
Conference_Location :
Shanghai
Print_ISBN :
1-4244-0448-7
DOI :
10.1109/IPEMC.2006.4778022
