Seite - 235 - in Emerging Technologies for Electric and Hybrid Vehicles

Energies 2016,9, 410 Figure 19 shows the simulatedwaveforms of gate signals ofQ3,Q4, the two-phase inductor currents (iL1, iL2) and the switch voltages of (VQ3, VQ4) in charge state at full load condition. The corresponding experimental results are also shown in Figure 20. One can observe that both results are in very close agreement aswell. From the figures it is observed that by interleaved controlling thedutycyclesof 0.52 for the switches (Q3,Q4), the two-phase currents (iL1, iL2) are in complementary relationand inCCM.Also, fromFigures 19band20b, the charge-pumpcapacitor voltage (VCB) isabout192.5V, it canclamptheswitchvoltagesofactiveswitches (Q3,Q4) tobenearly one-halfof theregulatedhigh-sidevoltageVHof385V. (a) (b) (c) Figure19.Simulatedwaveformsof thestudiedBDCindischargestateat full load: (a)gatesignalsof Q3,Q4, two-phase inductorcurrents iL1, iL2; (b) switchvoltagesofQ3,Q4; (c) charge-pumpcapacitor voltageVCB andhigh-sidevoltageVH. 235