A Novel Bridgeless Cuk PFC Converter With Further Reduced Conduction Losses and Simple Circuit Structure

Lin, Xiang; Jin, Zhang; Wang, Jun; Luo, Jian

doi:10.1109/tie.2020.3031527

Cited by 37 publications

(12 citation statements)

References 23 publications

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“…The converters with buck-boost ability, such as the buck-boost, the cuk, and the sepic, can be used for the PFC stage. These converters offer the step-down capability as well as a high-quality input current and avoid the additional stage for decreasing the output voltage [14]- [22]. Since the internal capacitors in the sepic and cuk converters participate in energy transfer, these converters have already been proven as better solutions than the buck-boost one [20].…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, as a result of the low duty cycle, current stresses are increased. As the PFC rectifiers presented in [14]- [19]; [21]; and [22] suffer from a limited step-down gain, they cannot be considered as a viable solution in low output voltage applications. The rectifier proposed in [20] solves this problem at the expense of a greater number of semiconductors in the current path.…”

Section: Introductionmentioning

confidence: 99%

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High Step-Down Bridgeless Sepic/Cuk PFC Rectifiers With Improved Efficiency and Reduced Current Stress

Babaei

Monfared

2022

IEEE Trans. Ind. Electron.

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In this article, two high step-down bridgeless power factor correction rectifiers based on the switched inductor network (SIN) are introduced. The proposed rectifiers employ the SIN to provide high step-down voltage gain with a higher duty cycle than the competitors. They also offer higher efficiency, lower current stress, and total peak switching device powers. A thorough and straightforward design algorithm in the discontinuous conduction mode is provided that ensures a unity power factor and a low total harmonic distortion with a simple control scheme. As a demonstration of the superior performance of the proposed rectifiers, a 300-W high-gain sepic rectifier setup with 48V dc output voltage from a 230V rms /50Hz source is built in the laboratory.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

High Step-Down Bridgeless Sepic/Cuk PFC Rectifiers With Improved Efficiency and Reduced Current Stress

Babaei

Monfared

2022

IEEE Trans. Ind. Electron.

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“…Many topologies, such as bridgeless PFC [1,2,29], boost PFC, buck PFC and so on, and operating modes, such as the continuous conduction mode (CCM) [3], discontinuous conduction mode (DCM) [4] and critical conduction mode (CRM) [5], are available for achieving high PF and low THD. The control methods include average current control [6], peak current control [5], one cycle control [7] and so on.…”

Section: Introductionmentioning

confidence: 99%

Non‐linear control of a boost PFC converter with a small inductor based on feedforward correction and frequency variation

Song

Liu

Yang

et al. 2022

IET Power Electronics

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To reduce total harmonic distortion (THD) and improve the power factor (PF) of a boost power factor correction (PFC) converter, here, the authors propose a non‐linear control algorithm that includes the feedforward correction (FC) algorithm in the continuous conduction mode (CCM) and the non‐linear frequency variation (FV) algorithm in the mixed conduction mode (MCM). The proposed FC algorithm achieves current out of distortion through zero crossing with a lower current loop bandwidth. The proposed non‐linear FV algorithm achieves high PF and low THD under minimal load conditions. The non‐linear FV algorithm comprises a third harmonic extraction algorithm, a harmonic control loop for reducing THD and a frequency production algorithm. By using this non‐linear FV algorithm, the inductor size is reduced, which leads to lower cost and also achieves better THD and PF. The proposed algorithms are verified experimentally in terms of current tracking, current THD, PF, heating and loss on a 2000‐W boost PFC converter hardware prototype.

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“…The input current does not contain low‐order harmonics; hence no bulky input filter is required [16]. Cuk‐based PFC converters offer lower in‐rush current, and continuous input and output currents [17]. Although Zeta‐based converters provide good voltage regulation, low output ripple, and positive output voltage, they experience high voltage stresses in DCM.…”

Section: Introductionmentioning

confidence: 99%

Development of a three‐phase interleaved converter based on SEPIC DC–DC converter operating in discontinuous conduction mode for ultra‐fast electric vehicle charging stations

Hussein

Abdi

Massoud

2021

IET Power Electronics

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One of the main challenges that impact transportation systems electrification is their batteries' charging process. This work presents the development of a three-phase ultra-fast Electric Vehicle (EV) charger based on the SEPIC converter. Since SEPIC operating in Discontinuous Conduction Mode (DCM) is usually recommended for low-power applications, this work proposes a scheme for its employment in high-power EV chargers. This is achieved through three single-phase modules of interleaved SEPIC converters. The presented scheme ensures reducing the stresses on the semiconductor devices since the power is divided over the interleaved modules. The design addresses DCM operation in terms of both capacitor voltage and inductor current (DCVM and DICM, respectively). This paper examines the analysis of the proposed converter and the small-signal modelling. Also, the converter efficiency is assessed. A Constant Current (CC) charging approach is deployed for charging the EV battery. The validation of the designs is explored through simulation results using MATLAB/Simulink platform. A 4 kW experimental prototype for the interleaved SEPIC DC-DC converter is built to verify the claimed contributions with 92% efficiency.

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A Novel Bridgeless Cuk PFC Converter With Further Reduced Conduction Losses and Simple Circuit Structure

Cited by 37 publications

References 23 publications

High Step-Down Bridgeless Sepic/Cuk PFC Rectifiers With Improved Efficiency and Reduced Current Stress

High Step-Down Bridgeless Sepic/Cuk PFC Rectifiers With Improved Efficiency and Reduced Current Stress

Non‐linear control of a boost PFC converter with a small inductor based on feedforward correction and frequency variation

Development of a three‐phase interleaved converter based on SEPIC DC–DC converter operating in discontinuous conduction mode for ultra‐fast electric vehicle charging stations

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