Non-inverting and Non-isolated Magnetically Coupled Buck–Boost Bidirectional DC–DC Converter

Rodriguez-Lorente, Alba; Barrado, A.; Calderón, Carlos; Fernández, Cristina; Lázaro, A.

doi:10.1109/tpel.2020.2984202

Cited by 23 publications

(6 citation statements)

References 62 publications

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“…For the Battery System and/or Ultracapacitor a Bi-directional Buck-Boost Converter is used because it has the advantage that the power flow flows in both directions and allows them to supply both the energy to the load and to store the regenerative energy from the load. The advantage of using triple phase shift (TPS) [77] modulation strategies for magnetically coupled buck-boost bidirectional converter (MCB) demonstrates operation with minimal power losses in switches as well as in the power range [78] (Figure 4c). The arrangement of passive components used in MCB connects the input and output ports, obtaining a behavior similar to the topology of dual active bridge converters [79].…”

Section: Non-isolated Dc/dc Convertermentioning

confidence: 99%

Fuel Cell Electric Vehicles—A Brief Review of Current Topologies and Energy Management Strategies

et al. 2021

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With the development of technologies in recent decades and the imposition of international standards to reduce greenhouse gas emissions, car manufacturers have turned their attention to new technologies related to electric/hybrid vehicles and electric fuel cell vehicles. This paper focuses on electric fuel cell vehicles, which optimally combine the fuel cell system with hybrid energy storage systems, represented by batteries and ultracapacitors, to meet the dynamic power demand required by the electric motor and auxiliary systems. This paper compares the latest proposed topologies for fuel cell electric vehicles and reveals the new technologies and DC/DC converters involved to generate up-to-date information for researchers and developers interested in this specialized field. From a software point of view, the latest energy management strategies are analyzed and compared with the reference strategies, taking into account performance indicators such as energy efficiency, hydrogen consumption and degradation of the subsystems involved, which is the main challenge for car developers. The advantages and disadvantages of three types of strategies (rule-based strategies, optimization-based strategies and learning-based strategies) are discussed. Thus, future software developers can focus on new control algorithms in the area of artificial intelligence developed to meet the challenges posed by new technologies for autonomous vehicles.

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Section: Non-isolated Dc/dc Convertermentioning

confidence: 99%

Fuel Cell Electric Vehicles—A Brief Review of Current Topologies and Energy Management Strategies

et al. 2021

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“…The paper [22] presents a soft-switched non-isolated high step-up multi-port DC-DC converter for a hybrid energy system. Publication [23] presents a non-isolated converter for applications in microgrids or photovoltaic farms. Similarly, publication [24] proposes the design of a non-isolated converter for applications in cooperation with renewable energy sources providing at the same time a high voltage gain.…”

Section: Introductionmentioning

confidence: 99%

Comparative study of DC/DC electric vehicle charging system with conventional transformer and planar transformer

2024

Archives of Electrical Engineering

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This paper presents an analysis of electric vehicle charging station operation based on a dual active bridge topology. Two cases are considered: one with the use of a medium frequency planar transformer, the other with a conventional Litz winding transformer. An analysis was performed using both solutions in order to compare the performance characteristics of the system for both cases and to present the differences between each transformer solution. The analysis was based on tests carried out on the full-scale model of an electric vehicle charging station, which is the result of the project "Electric vehicle charging system integrated with lighting infrastructure" realized by the Department of Drives and Electrical Machines, Lublin University of Technology. The results presented in the paper show that the conventional transformer used in the research achieved better results than the planar transformer. Based on the results obtained, the validity of using both solutions in electric vehicle charging stations was considered.

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“…The output voltage value of renewable resources, maybe less, more, or variable, needs to be stabilized. So, the DC-DC converters such as boost, buck, and buck-boost are suitable for solving the variable output voltage issue [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

A new transformerless buck‐boost converter with improved voltage gain and continuous input current

Hosseinpour,

Ahmadi,

Seifi

et al. 2024

IET Power Electronics

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This paper proposes a new transformerless buck‐boost converter with an extended voltage conversion ratio. This converter has semi‐quadratic voltage gain, which provides more gain with lower duty cycles. This converter has a simple structure and easy implementation, which reduces the cost and increases efficiency. The proposed converter operates in continuous conduction mode and provides two operation modes by turning on and off the switches. The suggested converter has continuous input current and low input current ripple, which is important when utilizing renewable energy sources. The calculation of the proposed converter includes ideal and practical voltage gain, current calculations, voltage stresses of the switches and diodes, current stress of the switches, parameter design, efficiency, and a brief analysis of discontinuous conduction mode and boundary conditions. The proposed converter provides efficiency of about 93.1% in boost mode and 92.14% in buck mode at 50 W output power. The suggested converter varies the input voltage from 20 to 48 V in boost mode and changes the input voltage from 20 to 10.4 V in buck mode. Finally, a laboratory prototype has been built to prove and evaluate the simulation results and theoretical analysis of the proposed converter.

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Non-inverting and Non-isolated Magnetically Coupled Buck–Boost Bidirectional DC–DC Converter

Cited by 23 publications

References 62 publications

Fuel Cell Electric Vehicles—A Brief Review of Current Topologies and Energy Management Strategies

Fuel Cell Electric Vehicles—A Brief Review of Current Topologies and Energy Management Strategies

Comparative study of DC/DC electric vehicle charging system with conventional transformer and planar transformer

A new transformerless buck‐boost converter with improved voltage gain and continuous input current

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