DocumentCode :
3097905
Title :
A 2kW Interleaved ZCS-FM Boost Rectifier Digitally Controlled by FPGA Device
Author :
Canesin, C.A. ; Gonçalves, F. A S
Author_Institution :
Dept. of Electr. Eng., Sao Paulo State Univ.
fYear :
2005
fDate :
16-16 June 2005
Firstpage :
513
Lastpage :
518
Abstract :
This paper presents a 2 kW single-phase high power factor boost rectifier with four cells in interleave connection, operating in critical conduction mode, and employing a soft-switching technique, controlled by field programmable gate array (FPGA). The soft-switching technique is based on zero-current-switching (ZCS) cells, providing ZC (zero-current) turn-on and ZCZV (zero-current-zero-voltage) turn-off for the active switches, and ZV (zero-voltage) turn-on and ZC (zero-current) turn-off for the boost diodes. The disadvantages related to reverse recovery effects of boost diodes operated in continuous conduction mode (additional losses, and electromagnetic interference (EMI) problems) are minimized, due to the operation in critical conduction mode. In addition, due to the interleaving technique, the rectifier´s features include the reduction in the input current ripple, the reduction in the output voltage ripple, the use of low stress devices, low volume for the EMI input filter, high input power factor (PF), and low total harmonic distortion (THD) in the input current, in compliance with the IEC61000-3-2 standards. The digital controller has been developed using a hardware description language (VHDL) and implemented using a XC2S200E-SpartanII-E/Xilinx FPGA device, performing a true critical conduction operation mode for four interleaved cells, and a closed-loop to provide the output voltage regulation, like as a pre-regulator rectifier. Experimental results are presented for a 2 kW implemented prototype with four interleaved cells, 400 V nominal output voltage and 220 Vrms nominal input voltage, in order to verify the feasibility and performance of the proposed digital control through the use of a FPGA device
Keywords :
IEC standards; digital control; diodes; electromagnetic interference; field programmable gate arrays; hardware description languages; harmonic distortion; power factor; rectifying circuits; switching convertors; voltage control; zero current switching; zero voltage switching; 2 kW; 220 V; 400 V; EMI input filter; FPGA device; IEC61000-3-2 standards; THD; VHDL; XC2S200E-SpartanII-E; Xilinx FPGA device; ZC turn-on; ZCZV turn-off; ZV turn-on; active switches; boost diodes; continuous conduction mode; critical conduction mode; digital controller; electromagnetic interference; field programmable gate array; hardware description language; high input power factor; input current ripple reduction; interleaved ZCS-FM boost rectifier; interleaved cells; low stress devices; low total harmonic distortion; output voltage regulation; output voltage ripple reduction; reverse recovery effects; single-phase high power factor boost rectifier; soft-switching technique; zero-current turn-off; zero-current-switching cells; zero-current-zero-voltage turn-off; zero-voltage turn-on; Digital control; Diodes; Electromagnetic interference; Field programmable gate arrays; Magnetic losses; Reactive power; Rectifiers; Switches; Voltage control; Zero current switching;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Power Electronics Specialists Conference, 2005. PESC '05. IEEE 36th
Conference_Location :
Recife
Print_ISBN :
0-7803-9033-4
Type :
conf
DOI :
10.1109/PESC.2005.1581673
Filename :
1581673
Link To Document :
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