Transformer-Less Boost Converter With Reduced Voltage Stress for High Voltage Step-Up Applications

Sadaf, Shima; Bhaskar, Mahajan Sagar; Meraj, Mohammad; Iqbal, Atif; Al‐Emadi, Nasser

doi:10.1109/tie.2021.3055166

Cited by 27 publications

(26 citation statements)

References 29 publications

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“…23(a) and (b) demonstrate the SUF diagrams for some of the converters with regards to D and N, respectively, which are less than "SUF=1". According to these figures, [68,96,118,121,134,147,191,207] and [13,42,64,73,179,182,204] respectively are the most and the least desired topologies with regards to SUF. Moreover, the most determinative factor for high SUF in [96,134,191] and [68,118,121,147,207], respectively, is their low ˆS V and ˆS I .…”

Section: Switch Utilization Factormentioning

confidence: 98%

“…According to these figures, [68,96,118,121,134,147,191,207] and [13,42,64,73,179,182,204] respectively are the most and the least desired topologies with regards to SUF. Moreover, the most determinative factor for high SUF in [96,134,191] and [68,118,121,147,207], respectively, is their low ˆS V and ˆS I . On the other hand, high ˆS V and ˆS I lead to low SUF in [182,204] and [13,42,64,73,179], respectively.…”

Section: Switch Utilization Factormentioning

confidence: 98%

“…Furthermore, since the specifications of semiconductors are not considered, this number does not lead to a useful practical point of view even when comparing the converters of a same family. 2) About 40% of the converters operate with two switches where the second switch is employed in the interleaved branch [16,39,100,151], cascaded (multistage) unit [124], soft switching auxiliary circuit [27,53,218], active clamp circuit [36,38,57], active SI unit [165,178,180,187], combined SCI unit [91,94,191], impedance source network [221,240] or complementary with the first switch [12,189,203]. Note that, except the synchronous PWM boost converter, which is realized with the replacement of the rectifying diode by a switch in the conventional PWM boost converter (see Fig.…”

Section: A Numerical Characteristicsmentioning

confidence: 99%

“…In addition, since the converters are usually designed for a specific operation region, their efficiency diagrams should be assessed in that same region based on the application. In some previously published literature, efficiency is only evaluated in a single point [11,88,121,201,233], in a full load point [131,149,194], or in a maximum efficiency point [44,76,94,98,122,126,129,163,166,170,176,179,191,224,240] with different nominal power, output voltage, switching frequency and duty cycle, which lead to some incomplete and unfair outcomes. Moreover, the efficiency is assessed in one reported point in [100,108].…”

Section: G Efficiencymentioning

confidence: 99%

See 3 more Smart Citations

Nonisolated High Step-Up DC–DC Converters: Comparative Review and Metrics Applicability

Tarzamni

Gohari

Sabahi

et al. 2024

IEEE Trans. Power Electron.

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Due to the extensive role of non-isolated high step-up DC-DC converters (NHSDC)s in industrial applications and academic research, many of these pulse width modulation converters have been presented in recent years. For each of these NHSDCs, some claims are introduced to verify its capabilities and features, which has been investigated in some review papers with different frameworks. Dissimilar to previous review papers, which have focused on the classification and derivation of voltage boosting techniques, this paper aims to evaluate the converters from various topological and operational points of view, and determine the superiority of each technique and converter according to applications. Some of these metrics are voltage gain, stresses, ripple, cost, power density, weight, size, control complexity and components count which lead to a comprehensive comparative study. Then, as the main purpose of this paper, effectiveness of these metrics is assessed to show how well they can lead us to the fair comparison results. Moreover, some new figures of merit are proposed in this paper to provide a helpful guideline in power electronic converters comparison studies. Finally, the feasibility discussion of single-and multi-objective figures of merit is followed by general practical conclusion and outlook about the NHSDC structures.

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Section: Switch Utilization Factormentioning

confidence: 98%

Section: Switch Utilization Factormentioning

confidence: 98%

Section: A Numerical Characteristicsmentioning

confidence: 99%

Section: G Efficiencymentioning

confidence: 99%

See 2 more Smart Citations

Nonisolated High Step-Up DC–DC Converters: Comparative Review and Metrics Applicability

Tarzamni

Gohari

Sabahi

et al. 2024

IEEE Trans. Power Electron.

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show abstract

“…However, there are significant advantages present in this topology but limits its operation only at high voltage low power applications [27]. By integrating the boost and quadratic boost topologies in [28,29] the high gain with increased efficiency even at low duty cycle is achieved. In [30−32], a non-isolated high gain boost converter is presented, by integrating the coupled inductor with SC topology to attain reduced voltage stress and conduction losses on the power switches at moderate duty cycle.…”

Section: Literature Reviewmentioning

confidence: 99%

Adaptive neuro-fuzzy approach for maximum power point tracking with high gain converter for photo voltaic applications

2022

IJATEE

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Energy is essential for improving the management of the power systems. One of the major concerns in the power sector is increasing demand of power that tends to increase the demand for fossil fuels causing environmental problems. Thus, it is essential to use variable renewable energies for direct current (DC) micro grid applications. Solar photo voltaic (PV) is one of the phenomena where the solar irradiance is converted to electrical power through solar cell. A new high gain converter is implemented which is fed from solar PV to track the maximum voltage and power so as to elevate the output efficiency of the PV panel. The envisioned converter can be effectively worked in continuous conduction mode (CCM) with same gating pulse for the two switches that guarantees wide plying range. The preferred converter comprises least number of components and achieves a maximum gain of 25 for the switch on period of 0.8 which makes the control circuit simpler compared to other non-coupled inductor topologies. Presently, special maximum power point tracking (MPPT) procedures have been acquainted to track the maximum power point (MPP) viably of which adaptive neuro fuzzy inference system (ANFIS) based controller is used in this article and high efficiency of about 98.96% is attained with good dynamic response. Over here, the potency of the system is endorsed by means of MATLAB/SIMULINK and compared with the other standard MPPT methods. Further, functioning and assessment of the conspired work are inspected carefully and verified effectively.

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A voltage lift‐based high‐gain DC‐DC converter with low input current ripple

Singh

Tolani

2023

Circuit Theory & Apps

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The switched‐inductor‐based voltage lift converters offer high voltage gain. However, their input current has step changes due to switched‐inductor configuration and is peaky due to the voltage lift capacitor charging current. This article proposes a new high‐gain DC‐DC converter where an additional boost converter cell is incorporated in a conventional voltage lift boost converter to charge the voltage lift capacitor with a constant current, avoiding a peaky charging current from the supply. The operating principle of the proposed converter demands phase‐shifted switching signals to achieve high voltage gain and reduce ripple in the input current. High‐gain, continuous input current, positive output voltage, common ground between input and output ports, and low voltage stress on active switches are the major characteristics of the proposed converter. The operating principle, steady‐state analysis, and control design have been discussed in detail. A 200 W, 30 V/300 V, and 50 kHz laboratory prototype is developed to validate the operation of the proposed converter.

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Transformer-Less Boost Converter With Reduced Voltage Stress for High Voltage Step-Up Applications

Cited by 27 publications

References 29 publications

Nonisolated High Step-Up DC–DC Converters: Comparative Review and Metrics Applicability

Nonisolated High Step-Up DC–DC Converters: Comparative Review and Metrics Applicability

Adaptive neuro-fuzzy approach for maximum power point tracking with high gain converter for photo voltaic applications

A voltage lift‐based high‐gain DC‐DC converter with low input current ripple

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