A Hybrid Interleaved DC–DC Converter With a Wide Step-Up Regulation Range and Ultralow Voltage Stress

Operation and design analysis of an interleaved high step‐up DC–DC converter with improved harnessing of magnetic energy

“…In addition, normalized form of Δw L in the proposed interleaved converter reaches the best rank in Figure 25E,F. The evaluations of Figure 25C-F in the normalized form verify the following features about the proposed interleaved converter: (i) highest power density of the input inductor in a constant Δi L , V i , and f S ; (ii) acceptably low weight and size; 8 Li et al 9 Li et al 10 Li et al 11 Li et al 12 Zeng et al 13 He et al 14 Forouzesh et al 15 Hu et al 18 Tseng and Huang 19 Tseng et al 20 Dwari and Parsa 21 Araujo et al 22 Lai et al 23 Sedaghati et al 24 Nouri et al 32 Moradisizkoohi (iii) low probability of core saturation; (iv) efficient inductive utilization; and (v) applicability in the industries such as renewable energy systems.…”

“…6 Considering various approaches, interleaving and using coupled inductors (CIs) are two popular techniques to satisfy high output voltage gain and avoid the requirement of high duty cycle values, which alleviates the reverse-recovery power loss issue in the rectifier diodes. 7 In Hu et al, 8 a hybrid interleaved DC-DC converter with high step-up capability is presented to recycle the leakage energy of CI and reach wide output voltage range. However, Hu et al 8 suffer from asymmetric operation of two phases, which is mostly probable with large number of components in each interleaved phase.…”

“…7 In Hu et al, 8 a hybrid interleaved DC-DC converter with high step-up capability is presented to recycle the leakage energy of CI and reach wide output voltage range. However, Hu et al 8 suffer from asymmetric operation of two phases, which is mostly probable with large number of components in each interleaved phase. In Li et al, 9 a combination of voltage multiplier cell (VMC) and CI technique is employed in an interleaved topology with boost capability to enhance the gain of the converter and diminish input current ripple.…”

A new high‐efficiency interleaved step‐up converter with zero‐voltage switching, zero‐current switching, and common‐ground features for stand‐alone electric vehicle charging stations

“…The optimal duty cycle is between 0.4 and 0.6. According to the nominal output power, the average value of the coupled inductors' current is determined by equation (22). In order to operate in CCM, the optimal value of the coupled inductors' current ripple should be between 0.2 and 0.4 times of the average value of the inductors' current.…”

“…In this topology, a simple classical interleaved boost converter has been equipped with an active clamp circuit to recover the leakage energy, to provide ZVS operation, and increase the power transmission capability. The similar idea has been implemented in Hu et al 23 but with a novel passive clamp circuit, which reduces the voltage stresses on power switches significantly. Eskandari et al 24 presented a new step‐up converter with the interleaved operation.…”