A bidirectional DC/DC converter with wide-voltage gain range and low-voltage stress for hybrid-energy storage systems in electric vehicles

Wang, Zhishuang; Wang, Ping; Bi, Huakun; Qiu, Mingjie

doi:10.1007/s43236-019-00017-2

Cited by 15 publications

(8 citation statements)

References 26 publications

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“…According to the load variation, the phase shift angle has changed. As the output power increases, the phaseshift angle increases to transfer the power to the secondary side as shown in (3). In all the load ranges, the output voltage is well regulated to the target of 278 V. The peak and RMS current at the rated load is measured as 54.5 A and 36.03 A, respectively.…”

Section: Resultsmentioning

confidence: 99%

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Practical Controller Design of Three-Phase Dual Active Bridge Converter for Low Voltage DC Distribution System

Choi¹,

Lee²,

Jung

2020

Electronics

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In a low voltage DC (LVDC) distribution system, isolated bi-directional DC-DC converters are key devices to control power flows. A three-phase dual-active-bridge (3P-DAB) converter is one of the suitable candidates due to inherent soft-switching capability, low conduction loss, and high-power density. However, the 3P-DAB converter requires a well-designed controller due to the influence of the equivalent series resistance (ESR) of an output filter capacitor, degrading the performance of the 3P-DAB converter in terms of high-frequency noise. Unfortunately, there is little research that considers the practical design methodology of the 3P-DAB converter’s controller because of its complexity. In this paper, the influence of the ESR on the 3P-DAB converter is presented. Additionally, the generalized average small-signal model (SSM) of the 3P-DAB converter including the ESR of the capacitive output filter is presented. Based on this model, an extended small-signal model and appropriate controller design guide, and performance comparison are presented based on the frequency domain analysis. Finally, experimental results verify the validity of the proposed controller using a 25 kW prototype 3P-DAB converter.

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Section: Resultsmentioning

confidence: 99%

“…Interests in applications for DC grids have recently increased [1][2][3]. To configure the DC microgrid, which can replace the conventional alternating current (AC) distribution system, the low voltage DC (LVDC) distribution system has been steadily studied and examined [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Practical Controller Design of Three-Phase Dual Active Bridge Converter for Low Voltage DC Distribution System

Choi¹,

Lee²,

Jung

2020

Electronics

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“…Nevertheless, it has low voltage gain, low efficiency, and high switching frequency. In literature, [22][23][24] a bidirectional high voltage gain DC-DC converter was suggested. This converter has only one input port and could not be energized the load from different energy sources.…”

Section: Literature Reviewmentioning

confidence: 99%

A bidirectional multiport DC‐DC converter applied for energy storage system with hybrid energy sources

Pourjafar

Shayeghi

Sedaghati

et al. 2021

Circuit Theory & Apps

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This paper presents a novel bidirectional multiport DC-DC converter for the electrical vehicles with hybrid energy sources. The benefits of the suggested converter are high voltage conversion ratio and high efficiency, simple structure, low voltage stress across the semiconductor elements, low number of components, and common ground features. It has two bidirectional ports, which are suitable for energy storage systems (ESS) such as a battery. Due to the step-up and step-down operations of the proposed converter, it can charge and discharge the ESS. Additionally, only two power switches with low ON-state resistance are utilized that make the control circuit to be simple. Furthermore, the suggested converter has low number of component, which leads to decrease its volume and cost. The operation principle in buck and boost mode is analyzed thoroughly. Finally, to verify the analysis and effectiveness of the proposed structure, a laboratory prototype is built with 12-and 20-V input voltages and a power rating of 120 W used in 50-kHz operating frequency.

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“…The electric vehicles are more energy efficient and ecofriendly compared with the traditional vehicles [3]. This is due to the fact that the electric vehicles offer the integration of renewable energy and the emission of zero greenhouse gases [4][5][6]. However, the recent share of the electric vehicles is only 2% of the total vehicles in the world [7].…”

Section: Introductionmentioning

confidence: 99%

Multicriteria Evaluation of Portable Energy Storage Technologies for Electric Vehicles

et al. 2022

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The conventional vehicles are a major cause of the greenhouse gases emissions in the global environment. Electric vehicles are a sustainable alternative to the conventional vehicles due to the negligible emissions and the possibility of the renewable energy integration. However, the electric vehicles require the separate storage systems and the selection of the proper storage system is a major concern in the electric vehicles markets. The storage system should be selected in a systematic and rational way. Hence, this paper evaluates the existing storage technologies for electric vehicles based on a multi-criteria decision making model. For this purpose, this paper performs a comprehensive literature review of the existing storage technologies for electric vehicles. Then, this paper evaluates the key storage technologies for electric vehicles based on the five criteria including cost, technical features, compatibility, technological maturity, and environment, health, and safety. These criteria and their sub-criteria were used in the development of an analytic hierarchy process (AHP) model. The proposed AHP model was solved using Super Decisions software. Results offer the various insights for the selection of a proper storage system for electric vehicles. In most of the cases, AHP model suggested the utilization of hybrid sodium-nickel chloride battery (SNCB) and supercapacitors (SC) for electric vehicles. Besides, the higher capital cost has been identified as the key barrier in the adoption several storage technologies such as lithium ion battery (LIB) and hydrogen fuel cells (HFC) storage.INDEX TERMS analytic hierarchy process (AHP), capital cost, electric vehicle, environmental sustainability, health and safety, multi-criteria decision making, renewable energy, storage technologies.

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A bidirectional DC/DC converter with wide-voltage gain range and low-voltage stress for hybrid-energy storage systems in electric vehicles

Cited by 15 publications

References 26 publications

Practical Controller Design of Three-Phase Dual Active Bridge Converter for Low Voltage DC Distribution System

Practical Controller Design of Three-Phase Dual Active Bridge Converter for Low Voltage DC Distribution System

A bidirectional multiport DC‐DC converter applied for energy storage system with hybrid energy sources

Multicriteria Evaluation of Portable Energy Storage Technologies for Electric Vehicles

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