A high-gain fuel cell vehicle dc/dc converter structure and control method
A technology of fuel cells and converters, which is applied in the direction of adjusting electrical variables, control/regulation systems, and converting DC power input to DC power output, etc. Low and other problems, to achieve the effect of small current fluctuation, solve the problem of low boost ratio, and offset disturbance
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[0033] Such as figure 1 As shown, a high-gain fuel cell vehicle DC / DC converter structure of this embodiment includes a control unit B and a main circuit A composed of a fuel cell, a load R and a DC / DC converter circuit, and the fuel cell is connected in series The input end of the DC / DC converter circuit, the load R is connected across the output end of the DC / DC converter circuit, and the DC / DC converter includes a first inductance L1, a second inductance L2, a third inductance L3, and a fourth inductance L4 , the first switching tube Q1, the second switching tube Q2, the third switching tube Q3, the fourth switching tube Q4, the first capacitor C1, the second capacitor C2, the first conduction diode D1, the second conduction diode D2, the first An upper bridge circuit and a lower bridge circuit that are symmetrically arranged and connected in parallel in a structure composed of three conduction diodes D3 and a fourth conduction diode D4;
[0034] The first inductor L1, the...
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