New Topology for DC–DC Converters Used in Fuel Cell–Electric Double Layer Capacitor Hybrid Power Source Systems for Mobile Devices

Katayama, Noboru; Tosaka, Shuhei; Yamanaka, Tatsuya; Hayase, Masanori; Dowaki, Kiyoshi; Kogoshi, Sumio

doi:10.1109/tia.2015.2464189

Cited by 30 publications

(8 citation statements)

References 16 publications

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“…There are three types of MPC – isolated, 1–3 nonisolated, 4–8 and partially isolated 9–18 . In EVs, power transfer to HVB must be isolated, while no isolation is needed between MVB and LVB; thus, the partially isolated configuration is adopted.…”

Section: Introductionmentioning

confidence: 99%

Multiport converter integrating automatic current balancing interleaved PWM converter and DAB converter with improved transformer utilization for electric vehicles

Sato

Uno

Tada

2022

Electrical Engineering Japan

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Multiport converters (MPCs) that integrate multiple converters into a single unit have been proposed to reduce the converter count in electric vehicle power systems where multiple batteries are employed. However, conventional MPCs comprising a dual active bridge (DAB) converter and an interleaved PWM converter require feedback control loops and current sensors to balance the inductor currents. Furthermore, the transformer utilization decreases as the duty cycle of the interleaved PWM converter drifts away from 0.5. This paper proposes a novel MPC that integrates a DAB converter and an interleaved PWM converter with an automatic current balancing capability and improved transformer utilization. A 1‐kW prototype with a half‐bridge or full‐bridge circuit on the high‐voltage side was built for the experimental verification, and loss analysis was performed. The results demonstrated the automatic current balancing capability, improved transformer utilization, and flexible power exchange among three ports.

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Section: Introductionmentioning

confidence: 99%

Multiport converter integrating automatic current balancing interleaved PWM converter and DAB converter with improved transformer utilization for electric vehicles

Sato

Uno

Tada

2022

Electrical Engineering Japan

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“…Many researchers investigated the dynamic analysis of dc/dc converters according to the system parameters and loads in the literature. Several types of load are reported such as capacitive voltage load [17][18][19], the linear load [20][21][22][23][24], and the constant current load [25,26]. e complete dynamic of the dc/dc converter is determined by the type of the load which leads to various complex phenomena with respect to different switching modes.…”

Section: Introductionmentioning

confidence: 99%

“…e complete dynamic of the dc/dc converter is determined by the type of the load which leads to various complex phenomena with respect to different switching modes. For the sake of brevity, we mention the chaos issue, quasiperiodicity, and some stringent behavior such as the coexistence of attractors and pulse bursting, etc (the reader is referring to References [17,19,27] and the references therein). Other important characteristics such as chaos transition in buck-boost [28] and hidden attractors in multilevel dc/dc converters have been investigated by Zhusubaliyeu and Wang [29], respectively.…”

Section: Introductionmentioning

confidence: 99%

Complex Dynamics and Effects of Memristive Load Using Current‐Mode‐Controlled in Buck Converter

Kammogne

Kengne

Vaidyanathan

et al. 2022

Discrete Dynamics in Nature and Society

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Electronic power converters are in a state of exhibiting some complex features which can be influenced by the converter’s structure parameters and load, as well as its pulse period. In this paper, we propose to investigate these phenomena occurring in the dc/dc buck converter by carrying out the dynamics of the said system when it exhibits the fingerprints of frequency-dependent pinched hysteresis loops. The essential part of this study is consecrated to the nonlinear dynamics when the converter load is memristive. Under two kinds of switch states, the independent nonlinear models and equations are derived which provide a complete dynamics description of the system under investigation. The dynamics analysis is performed by making use of bifurcation tools, phase portraits, and two parameters Lyapunov diagrams showing that the system depicts very rich and striking behaviors such as periodic orbits, period-doubling bifurcation, quasiperiodicity, chaos, and pinched hysteresis loops of the memristive load. Finally, the numerical simulation results are in almost perfect agreement with the analog result obtained with PSIM. The results obtained in this work have not yet been reported in the literature to the best of our knowledge and thus deserve dissemination.

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“…In electrical and electronic engineering, power electronic circuit has promoted the rapid development of electronic products. The switching DC-DC converter is an important research topic of power electronic integrated circuits, which is widely applied to the industrial and commercial fields due to their stability and reliability, such as electric vehicles [1], portable electronic devises [2], photovoltaic power systems [3,4], etc. So far, various DC-DC converters have been investigated from different angles, and fruitful research results and a series of effective research methods have been obtained [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Dynamical analysis of boundary behaviors of current-controlled DC–DC buck converter

Gao

Min

et al. 2021

Nonlinear Dyn

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In this paper, the current-controlled DC-DC buck converter from a new perspective are studied through the switching theory of flow, and the analytical conditions of the switching motion at the collision boundary and time boundary are both developed. Various mapping structures in periodic and chaotic status are visualized through phase trajectory and time sequence diagrams. The evolution of capacitor voltage, inductor current at the boundary are illustrated via bifurcation diagram, and its high-frequency and lowfrequency situations are developed, respectively. The distribution of the system's mapping structures with varying the reference current and voltage are also exhibited systematically, which can demonstrate quite different forms and reveal the motion characteristics of system. The G-functions are closely related to the boundary motion and the mapping structure, so the switching behaviors of the system can be well analyzed by the G-functions. The simulation and experimental results through Field Programmable Gate Array technology are also shown, and the chaos and periodic motions of system at the boundary are observed to validate the theoretical analytical conditions.

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New Topology for DC–DC Converters Used in Fuel Cell–Electric Double Layer Capacitor Hybrid Power Source Systems for Mobile Devices

Cited by 30 publications

References 16 publications

Multiport converter integrating automatic current balancing interleaved PWM converter and DAB converter with improved transformer utilization for electric vehicles

Multiport converter integrating automatic current balancing interleaved PWM converter and DAB converter with improved transformer utilization for electric vehicles

Complex Dynamics and Effects of Memristive Load Using Current‐Mode‐Controlled in Buck Converter

Dynamical analysis of boundary behaviors of current-controlled DC–DC buck converter

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