Sliding mode control of direct coupled interleaved boost converter for fuel cell

[摘要] A three phase direct coupled interleaved boost converter (TP-DIBC) was recommended in this paper. This converter has a small unbalance current sharing among the branches of TP-DIBC. An adaptive control law sliding mode control (SMC) is designed for the TP-DIBC. The aim is to 1) reduce ripple output voltage, inductor current and regulate output voltage tightly 2) The total current carried by direct coupled interleaved boost converter (DIBC) must be equally shared between different parallel branches. The efficacy and robustness of the proposed TP-DIBC and adaptive SMC is confirmed via computer simulations using Matlab SimPower System Tools. The simulation result is in line with the expectation.

[发布机构] School of Electrical and Electronic Engineering, Tianjin Key Laboratory of Film Electronic and Communication Devices, Tianjin University of Technology, Tianjin; 300384, China^1;School of Material Science and Engineering, Tianjin University of Technology, Tianjin; 300384, China^2

[关键词] Adaptive control law;Direct coupled;Inductor currents;Interleaved boost converters;Output voltages;Parallel branches;Sliding mode control(SMC);Unbalance currents