In this article, a new high step-up dc-dc converter with soft-switching capability is presented. converter, all of the main and auxiliary power switches operate under condition. addition, leakage inductances coupled inductors control current falling rate diodes. Therefore, reverse recovery losses are reduced significantly. voltage stresses across semiconductors clamped capacitors limited to lower values. diode-capacitor multiplier (VM) cells utilized simultaneously provide higher gain. This...

In this article, a high step-up nonisolated dc-dc converter is proposed to provide voltage gain with low stress on semiconductors. The main feature of the structure its flexibility in providing constant output voltages reasonable range stress. This achieved by different combinations duty cycles. Also, improves efficiency converter. consists three switches, two inductors, capacitors, and four diodes. descriptions continuous conduction mode, discontinuous boundary condition nonideal model,...

This article introduces a new coupled inductor based dual-input ultra-high step-up dc–dc converter with high voltage conversion ratio, low stress across semiconductor components, and efficiency features. The multiplier circuit (VMC) techniques have been utilized to enhance the gain. blocking voltages of power switches are clamped by VMC at values can be controlled via turn ratio inductors that decreases rate converter's cost. presented structure transfer load from two independent sources....

This paper proposes a non-isolated quadratic high-step-up DC-DC converter. A coupled inductor and switched capacitor cell are implemented in its structure to increase voltage gain. Balancing the plays role of resonant tank, which solves problem reverse recovery losses diodes. In this structure, soft switching conditions established for some diodes MOSFET, reduces With low number components, proposed converter achieves high The diode-capacitor clamp circuit is utilized reduce negative effects...

In this article, a new triple-switch triple-mode (TS-TM) high step-up dc–dc converter is proposed. The proposed consists of three switches, four diodes, two magnetically coupled inductors, and capacitors. This can provide voltage conversion ratio with power efficiency low stress across the semiconductor components. Due to stresses semiconductors implementing inductors technique, low-cost high-efficient structure in comparison other similar TS-TM structures. order clarify advantages...

Abstract This article proposes an interleaved high step‐up DC–DC converter topology designed for renewable energy applications, featuring ultra‐high voltage conversion ratio. The employs structure, resulting in a low peak‐to‐peak ripple the input source current, which is particularly advantageous solar PV sources. To enhance output voltage, utilizes multiplier cells (VMC) and coupled inductor techniques. Two inductors with three windings are integrated into proposed topology, secondary...

In this paper, a new high step-up non-isolated DC–DC converter has been proposed and analyzed. The topology provides DC output voltage, which is adjustable by two different duty cycles. Moreover, low voltage stress across the power switches can be marked as another advantage of structure. inequality switches' cycles helps obtain with moderate in converter. Four inductors based on magnetic cores, four capacitors, diodes, three make up converter's components. Operational modes are investigated...

In this paper a high voltage-gain interleaved structure for DC-DC converters is proposed. This provides with reasonable number of elements and low voltage-stress range. Also continuous input current ripple are other advantages structure. These features make converter suitable to use in renewable energy sources. paper, proposed analyzed completely all relations different modes will be achieved. order realize improvement converter, compared related structures.

In this study, a soft-switched buck converter is proposed and analysed. structure, by adding an auxiliary inductor two capacitors, zero-voltage switching condition for switch's turn on near to soft-switching off are provided. Furthermore, the power diode turns under zero-current condition. As result, losses reverse recovery have been eliminated, can provide high efficiencies. To prove mentioned advantages, 200 W laboratory prototype of built its results investigated completely. On basis...

In this article, a new simple buck converter with zero voltage switching (ZVS) performance and almost output current ripple is proposed. The proposed structure's auxiliary circuit contains capacitor an inductor without any switches, which makes it possible to minimize the losses eliminate other additional losses. main power diode also turns <sc xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">off</small> under condition reverse recovery of minimized....

In this paper, an interleaved high voltage-gain DC-DC converter is proposed and analyzed. Low voltage-stress on semiconductors low input current-ripple are the main features of converter. Due to mentioned features, can be a suitable choice for renewable energy applications. structure, voltage multiplier cell two output capacitors implemented increase gain. Furthermore, in order decrease current-ripple, inductors paralleled side. steady state analysis, gain stresses across power have been...

In the islanded mode of operation a DC microgrid, main objective is to achieve proportional sharing load power among sources and maintain source voltage within specified limit. The droop control technique widely used these objectives. Nevertheless, performance traditional becomes poor in case Microgrid including having unequal values nominal voltages. difference voltages arises due errors measurement feedback signal. lead current converters. mismatch leads flow circulating sources. To...

In this paper a high step up non isolated DC-DC converter with extendable topology is proposed. This symmetric and by using structure it can be possible to achieve voltage gain in low duty cycle range. consists of m + n+ 2 Active Passive Inductor Cell (APIC) Voltage Multiplier (VMC). addition increasing gain, the VMC decreases stress on switches diodes. Operational modes steady state analysis proposed will discussed completely, also diodes formulated. Different components designed for...

This paper targets at proposing a 48V to 3.2V(15x) Matrix Autotransformer Switched-Capacitor DC-DC Converter for data center applications. On the high voltage side, circuit is similar STC's side structure. low adopts current doubler like LLC's secondary replace full bridge circuit. By reconfiguring structure, theoretically, transformer's winding loss can be decreased 44.9% when compared with if core size same, and devices' conduction by half STC's. In this paper, detailed power comparison...

In this study, a simple auxiliary circuit is proposed and investigated to provide soft-switching operation in the boost converter. The includes only small inductor two capacitors. structure, by implementing inductor, negative current flows through power switch before its turn-on moment. Therefore, turns on under zero voltage switching condition. addition, properly designing parallel capacitor of switch, condition can be achieved for turn-off. Furthermore, helpful decrease reverse recovery...

In this paper, a new high step-up three-port structure using one PV panel and battery as storage element is proposed. proposed structure, three power switches, single inductor coupled are used. The gain of voltage for the presented topology higher than conventional converters which referred in paper. Using unidirectional bidirectional inputs develop compatible candidate hybrid system. Controlling state charge (SOC) battery, regulating output can be achieved by adjusting duty cycles switches....

Partial shading conditions decrease the photovoltaic string's output power because of bypass diodes operation. Also, extraction maximum available from systems has become important and challenging. To overcome partial improve prediction, intelligent point tracking techniques can be used. These methods must track voltage under different environmental situations to maximise systems' efficiency. In this paper, a model-based algorithm is accomplished through multi-input interleaved boost DC–DC...

In this paper, direct control of predictive power for three-phase rectifier using pulse width modulation is presented. For purpose, based on strategy to achieve simultaneous active & reactive converter. To goal at the beginning each period switching average voltage vector which makes possible zero error active& tracking. Also, end vectors are calculated by algorithm deadbeat method. As a result, with usage PWM, pulses required switches produced.

In this article, a soft-switched structure for the synchronous buck converters is proposed and analyzed. structure, by adding an LC circuit to converter, soft-switching condition performance obtained. Both main power switches turn on off under ZVS condition. Therefore, switching losses are eliminated completely high efficiencies can be obtained implementing converter. its operational modes investigated in details. The converter compared with other results comprehensively. efficiency of...

In this article, a high step-up DC-DC converter based on DCL (Diode-Capacitor-Inductor) stages is introduced and explored. The first advantage of topology that the utilized can be extended according to required voltage gain. addition, stress across power switches diodes low, which another structure. Considering these features, proposed structure applicable in renewable energy conversion systems. paper, two-DCL-stage garnered increase gain components are calculated. order analyze reliability...