Open AccessA Current Amplifier Circuit and Control Strategy Based on FPGA
Author(s) -
Wei Gu,
Lihui Zhang,
Jinxing Xie,
Guangnan Shi,
Haibo Zhang,
Quanqing Yu,
Zhu Hong-lin
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2095/1/012008
Subject(s) - field programmable gate array , controller (irrigation) , current (fluid) , vhdl , current source , computer science , electrical engineering , electronic engineering , amplifier , hysteresis , engineering , computer hardware , cmos , physics , quantum mechanics , agronomy , biology
With the extensive application of electric vehicles, energy storage systems and other power electronic equipment, the research on large capacity controllable current source will be an important direction in the future. This paper proposes controllable current source controlled by a full digitally hysteresis current based on field programmable gate array(FPGA), in which the single phase full bridge topology is adopted as the main circuit of current source. The two levels and three levels hysteresis current control strategies are analyzed and compared with the platform of PSCAD/EMTDC. The user defined component was adopted to realize the two difference control strategies with fortran language program. The simulation results verified that the two levels hysteresis current control strategy is much more fit for the controllable current source. Finally, a prototype is designed and fulfilled and it is controlled by the digitally controller with FPGA. The hysteresis current control is realized by FPGA controller with VHDL programming. The experimental results show that the researched hysteresis current control technology is effective for the current amplifier