A Plug-Play Active Resonant Soft Switching for Current-Auto-Balance Interleaved High Step-Up DC/DC Converter

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.…”

“…In Table 1, a comprehensive quantitative comparison is provided with regards to the components' count, control complexity, and utilization of VMC. Considering Table 1, except previous studies, [12][13][14][15]18,21,31 the other converters including the proposed one utilize the least number of power MOSFETs, which also reduces the gate drivers count. This results in cost and size reduction.…”

“…The main focus in these articles is the autobalancing mechanism of input current. The foremost detriments of He et al 14 and Forouzesh et al, 15 are large resonating currents, electromagnetic interference, and extremely large number of different operating intervals. In Tseng et al, 16 main switch voltage spike alleviation is aimed in an interleaved converter with a passive clamp circuit, where a low voltage gain turns to be a problem: operating in extreme duty cycle or higher number of CI turns.…”

“…Even though the switching loss reduction is concentrated in Zeng et al, 13 utilization of four power switches restricts the main switch duty cycle range, makes the control more complex, and increases the conduction loss. In He et al 14 and Forouzesh et al, 15 employing two interleaved high step‐up DC–DC converters is suggested. The main focus in these articles is the autobalancing mechanism of input current.…”

Interleaved high step‐up ZVS DC–DC converter with coupled inductor and built‐in transformer for renewable energy systems applications

“…Although the leakage inductance can provide natural zero current switching (ZCS) in the converters of [28–30], however, it does not effectively reduce the switching losses and as a result, the switching frequency cannot be pushed to high levels for decreasing of the converter volume. Active clamp technique is utilised for zero voltage switching (ZVS) performance in [31–37]. All active switches achieve ZVS operation and both of the switching losses and the imposed voltage on the MOSFETs are significantly decreased.…”