Indirect voltage regulation of double input Y-source DC-DC converter based on sliding mode control

High step‐up double input converter with soft switching and reduced number of semiconductors

“…This is the most prominent feature of this kind of converter, which can be observed in almost all of them . However, the converters in [29][30][31][32][33][34][35][36][37] have been lost sight of this feature. b.…”

“…In these converters, soft switching condition is usually lost [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][30][31][32][33][34][35][36], and voltage gain is relatively low [5, 7-18, 20-22, 29-36], but the number of semiconductors is few and power density is improved [6, 8-15, 20-22, 29-36].…”

“…This is the most prominent feature of this kind of converter, which can be observed in almost all of them [5–28]. However, the converters in [29–37] have been lost sight of this feature. Component sharing : this indicates the utilisation factor of each component in different operating modes. For instance, in [27, 28], the introduced converters utilised two full‐bridge converters, on each input port, which are magnetically coupled.…”

Alleviating the right‐half‐plane zero effect on Z‐source converter output voltage regulation using the cascaded sliding mode controller

“…As input voltage and load resistance of the converter may vary, an appropriate controller that guarantees the robustness against uncertainties is required. The sliding mode control (SMC) method, due to the advantage of the variable structure nature, is extensively used for power converters control [7–21]. However, the ideal SMC cannot be employed because of the bounded switching frequency of the converters.…”

“…Hence, the SMC provides robustness and the back‐stepping algorithm makes the controller immune to matched uncertainties. In [16], a SMC method was applied for regulating the output voltage of a high step‐up DC–DC converter with three coupled inductors called Y‐source converter (YSC), which can provide a very high boost at lower shoot‐through duty ratio and has one more degree of freedom to achieve voltage boost. Power flow is transferred to the load by the set of input sources with a double input structure of the converter.…”