Title :
A single-stage isolated three-phase bidirectional AC/DC converter
Author :
Ling Gu ; Ke Jin ; Hong Zhu ; Chenghua Wang
Author_Institution :
Jiangsu Key Lab. of New Energy Generation & Power Conversion, Nanjing Univ. of Aeronaut. & Astronaut., Nanjing, China
Abstract :
In this paper, a single-stage isolated bidirectional AC/DC converter is proposed. The converter can achieve high power factor, sinusoidal input currents, adjustable output voltage and high frequency electrical isolation with single-stage structure. The converter is modulated by Space Vector Pulse Width Modulation (SVPWM) algorithm in dq rotary two-phase coordinates. Both PI control and deadbeat control method can be applied on this converter. To verify the theoretical analysis, the simulation was done by MATLAB/SIMULINK and a 3kW hardware based on the proposed converter was built in the lab with the digital controller TMS320F2812. The simulation and experimental results show the high power factor and the low harmonic distortion characteristics of the circuit.
Keywords :
AC-DC power convertors; PI control; PWM power convertors; digital control; digital signal processing chips; harmonic distortion; power factor; power generation control; Matlab; PI control; SVPWM algorithm; Simulink; TMS320F2812; deadbeat control method; digital controller; dq rotary two phase coordinates; harmonic distortion characteristics; high frequency electrical isolation; isolated three phase bidirectional AC-DC converter; power 3 kW; power factor; space vector pulse width modulation; Inverters; Microgrids; Reactive power; Rectifiers; Switches; Voltage control; DC microgrid; SVPWM; bidirectional AC/DC converter; electrical isolation;
Conference_Titel :
Power Electronics for Distributed Generation Systems (PEDG), 2014 IEEE 5th International Symposium on
Conference_Location :
Galway
DOI :
10.1109/PEDG.2014.6878658
