Analysis and Design of Two-Switch Enhanced Gain SEPIC Converter

Selvam, Sindhuja; Sannasy, Mageshwari; Moorthi, S.

doi:10.1109/tia.2023.3242237

Cited by 10 publications

(2 citation statements)

References 32 publications

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“…The literature [14] proposes a high-boost converter, which has the advantage of simple structure. The literature [15] presents an interleaved boost converter characterized by an ultra-high boost ratio. The literature [16] proposes also an interleaved high-boost converter, which is characterized by inductive coupling and voltage superposition to realize a high-boost function.…”

Section: Introductionmentioning

confidence: 99%

“…In the literature [8][9][10][11][12], charge-pump circuits with single or multiple magnetic components are used to improve the voltage conversion ratio. The literature [13][14][15][16] proposes interleaved boost circuits to reduce the relatively large input currents; the main principle is also the use of coupled inductors to achieve high voltage conversion ratios. The literature [13] presents a variant of the interleaved boost converter, which is characterized by bidirectional energy conversion.…”

Section: Introductionmentioning

confidence: 99%

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High Step-Up Converter

Hwu,

Tseng

2023

Electronics

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A new high-boost converter derived from a charge-pump capacitor-based dual-boost converter is presented herein. Compared with the existing charge-pump capacitor-based dual-boost inductor converter, this structure adds an additional voltage-doubling circuit and additional coil to the original circuit to increase the voltage conversion ratio and winds the three coils around the same magnetic element. By this way, the overall size of the circuit can be reduced, and the leakage energy of the coupled inductor can be recovered. In this paper, the proposed new high-boost converter is firstly explained and analyzed, followed by simulations to demonstrate the feasibility of the proposed circuit and finally the experimental results to verify its effectiveness.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

High Step-Up Converter

Hwu,

Tseng

2023

Electronics

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Dual loop voltage droop regulated controller for DC microgrid using hybrid PSO and GGO algorithms

Prasad,

Singh,

Yadav

2024

Eng. Res. Express

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DC microgrids are effectively employed in distribution network integration with renewable energy sources. The droop control technique is commonly utilized for DC microgrid regulation during load sharing. It minimizes the potential instability caused by disturbances such as input voltage changes, uncertainty parameters, and constant power load (CPL). Nevertheless, conventional droop control is inadequate in achieving precise current and satisfactory voltage regulation distribution for load sharing. The proposed approach comprises two separate loops for the DC bus voltage regulation and load current distribution, delivering a CVL and CPL to overcome the single optimization voltage controller technique. The primary loop uses the PSO algorithm to precisely manage the current load sharing among two parallel converters. Due to this the instability problems arising from disturbances, and it mitigated by the proposed topology. The multiobjective optimization technique provides notable resilience, rapid dynamic response, and robust stability over considerable variations in load. The secondary loop utilises the GGO algorithm to optimize the parameter to minimize the DC bus voltage regulation, voltage management, reasonable distribution of load power, and suitable reliability. The performance of the voltage regulation enhance & settling time for output voltage has been mitigated more than 31ms times through the proposed controller compared to conventional controller under the variation of CVL, CPL, and input voltage disturbance demonstrated in simulation results.

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Non-Isolated Zeta PWM DC-DC Power Converter Analysis for CCM Including Parasitics

Kazimierczuk,

Corti,

Lozito

et al. 2024

IEEE Access

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This paper presents a theoretical circuit analysis for the non-isolated PWM DC-DC Zeta converter, operated at CCM (Continuous Conduction Mode) in steady-state conditions. The analysis derives the voltage and current waveforms for both current and voltages in the converter, and determines the DC voltage conversion ratio. The boundary between CCM and DCM modes is derived, as well as the expressions to determine the values of the four reactive components of the converter. The expression resulting in the maximum voltages across the mosfet and diode are determined. The expressions giving the maximum, average and rms values of the currents associated to all the converter devices were also derived as well as the expressions of power losses due to parasitic elements in the converter circuit, and, therefore, the converter efficiency, which also included the switching losses. To validate the proposed theoretical analysis, the converter is studied both using a time-domain circuit simulation software, and building an experimental circuit utilized for practical measurements. Theoretical results were in good agreement with simulation and experimental results.

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Analysis and Design of Two-Switch Enhanced Gain SEPIC Converter

Cited by 10 publications

References 32 publications

High Step-Up Converter

High Step-Up Converter

Dual loop voltage droop regulated controller for DC microgrid using hybrid PSO and GGO algorithms

Non-Isolated Zeta PWM DC-DC Power Converter Analysis for CCM Including Parasitics

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