Non‐isolated buck–boost dc–dc converter with quadratic voltage gain ratio

Gorji, Saman A.; Mostaan, Ali; My, Hung Tran; Ektesabi, Mehran

doi:10.1049/iet-pel.2018.5703

Cited by 80 publications

(92 citation statements)

References 23 publications

(54 reference statements)

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“…When the proposed Zeta converter is extended to contain n basic cells, the generalized voltage gain of the presented converter working in DCM can be calculated as: The voltage gain in CCM is identical with that in DCM, with the proposed Zeta converter operating in the boundary conduction mode. According to (5) and (26), the boundary coefficient τB can be calculated as: The curve between boundary coefficient τB and duty cycle of the proposed Zeta converter with one basic cell is illustrated in Fig. 7.…”

Section: Dcm and Boundary Conditionmentioning

confidence: 99%

“…Based on some classical converters such as buck-boost, boost, and Zeta converters, some dc-dc converters with high voltage conversion ration have been proposed in [20][21][22][23][24][25][26][27][28][29][30]. The performance comparison between the proposed Zeta converter, some of these converters, and the traditional Zeta converter is presented in Table 1.…”

Section: Comparisonmentioning

confidence: 99%

“…And the control and drive circuits are consistent with the conventional buck-boost converter though the converter has two active switches. Analogously, A single-switch buck-boost converter with high voltage gain has been presented in [26]. In [27], a non-isolated single-switch cascaded converter has been proposed.…”

Section: Introductionmentioning

confidence: 99%

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Single-Switch High Step-Up Zeta Converter Based on Coat Circuit

et al. 2021

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Section: Dcm and Boundary Conditionmentioning

confidence: 99%

Section: Comparisonmentioning

confidence: 99%

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Single-Switch High Step-Up Zeta Converter Based on Coat Circuit

et al. 2021

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“…Each scheme is independently presented and discussed. As mentioned, this paper is going to review MPPT schemes in SRES, where to further study about various types of DC-DC converters in SRES, the resources [15]- [17] are recommended. as direct MPPT methods [2].…”

Section: Existing Mppt Schemes In Sresmentioning

confidence: 99%

A Scheme-Based Review of MPPT Techniques With Respect to Input Variables Including Solar Irradiance and PV Arrays’ Temperature

2020

Self Cite

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Maximum power point tracking (MPPT) techniques have been vastly researched and developed in order to obtain the maximum terminal power of photovoltaic (PV) arrays in the solar renewable energy system. The aim of this paper is to present a new principal scheme-based review of the categorised MPPT methods (conventional, novel, and hybrid) with respect to the deployment of their input variables (solar irradiance, PV arrays' temperature, and PV arrays' terminal voltage and current), where MPPT methods are categorised to six different schemes. For each scheme, previous MPPT studies are extracted from literature and analysed. Then the critical benefits and limitations of the six presented MPPT schemes are compared and discussed. It is concluded that those MPPT schemes deploying the measured external variables would be able to track the global maximum power point with high reliability; however, their implementation cost and applicability remains as a challenge due to increasing the sensor deployment cost and complexity. The conclusion of this paper will help new researchers to deliberately select an appropriate MPPT scheme based on their projects' objectives and limitations, prior to selecting an optimisation algorithm for MPPT.

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“…The buckboost converter with switched capacitor logic [9] circuit trims down source current ripple irrespective of duty ratio for wide range of operations. The addition of complex capacitor -inductor circuit [10], [11] in buckboost converter, achieves high voltage gain compared to all basic converters. The continuous source current developed along with high voltage gain in buckboost -SEPIC circuit [12] eliminates large filtering requirement on Source AC side.…”

Section: Introductionmentioning

confidence: 99%

Improvement of Power Factor by Input Filter and Ripple Reduction using Cuk Converter in Continuous Conduction Mode

K.D.¹,

Daniel²,

Unnikrishnan³

2019

IJEAT

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The basic Converters like buck, boost and buckboost provide pulsed ripple currents either on input or output sides. A Cuk Converter has inductors on both input and output sides, thus produces continuous currents with reduced ripple. By extending the Cuk Converter to AC side with the support of additional rectifier circuit the power factor can be assessed. The significant concerns when utilizing DC-DC converters with AC source is large Total Harmonic Distortion (THD) and low power factor. A properly designed filter circuit on AC side reduces THD and improves the power factor. In this paper a Cuk Converter (CC) topology with rectifier and inductive. capacitive. inductive (LCL) filter is proposed to reduce THD and improve the power factor. The CC circuit is designed and analyzed to reduce ripple content of currents. The reduction in ripple on DC side in turn improves the sinusoidal shape of current on AC source side. The closed loop simulation of the proposed circuit is carried out using a systematically derived type III compensator. The proposed circuit is practically validated in closed loop using FPGA controller to confirm the simulated waveforms. The results substantiate the fact that the proposed circuit shrinks ripple on DC source side and reduces harmonics of AC source current. The reduction in harmonics decreases THD to a large extent and improves distortion factor, which enhances the power factor. Also the reduction in ripple trims down losses in the circuit and improves the output power, thus suitable for DC to DC conversions in power supplies for viz. electric vehicles, computers, battery chargers and televisions.The improvement in power factor reduces the power drawn from the source and hence the efficiency of the system is improved. Technology and Power Electronic converters. He has received award for scientific advisor from Indian navy for his outstanding contributions and dedications towards work. He has sixty-nine publications in national and international level.

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Non‐isolated buck–boost dc–dc converter with quadratic voltage gain ratio

Cited by 80 publications

References 23 publications

Single-Switch High Step-Up Zeta Converter Based on Coat Circuit

Single-Switch High Step-Up Zeta Converter Based on Coat Circuit

A Scheme-Based Review of MPPT Techniques With Respect to Input Variables Including Solar Irradiance and PV Arrays’ Temperature

Improvement of Power Factor by Input Filter and Ripple Reduction using Cuk Converter in Continuous Conduction Mode

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