Title :
Current Sharing Schemes for Multiphase Interleaved DC/DC Converter with FPGA Implementation
Author :
Liu, Dehong ; Hu, An ; Wang, Guangsen ; Hu, Wenhua
Author_Institution :
Nat. Key Lab. for Vessel Integrated Power Syst., Technol. Naval Univ. of Eng., Wuhan, China
Abstract :
Many multiphase interleaved DC/DC converter requires current sharing with average current control. Conventional current sharing schemes are based on sensing each phase current to provide the current information to the current control loop. Such schemes have drawback of affection by the sensing accuracy of each phase. Additionally, the switch actions in multiphase interleaved DC/DC converter lead to EMI noise which result in further inaccuracy of the current measurement. Thus, an advanced triple current sampling algorithm for multiphase interleaved DC/DC converter is proposed to eliminate sampling inaccuracy and immune to EMI noise. The proposed control schemes are simulated by Matlab/simulink and realized by FPGA implementation. Simulation and experiment results validated the control strategy.
Keywords :
DC-DC power convertors; electric current control; field programmable gate arrays; EMI noise; FPGA implementation; current control; current measurement; current sharing schemes; multiphase interleaved DC-DC converter; DC-DC power converters; Field programmable gate arrays; Integrated circuit modeling; Pulse width modulation; Switches; Voltage control; FPGA; bidirectional dc/dc converter; current sharing; multiphase interleaved;
Conference_Titel :
Electrical and Control Engineering (ICECE), 2010 International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-6880-5
DOI :
10.1109/iCECE.2010.854
