Single-Switch, Wide Voltage-Gain Range, Boost DC–DC Converter for Fuel Cell Vehicles

Zhang, Yun; Zhou, Lei; Sumner, Mark; Wang, Ping

doi:10.1109/tvt.2017.2772087

Cited by 72 publications

(24 citation statements)

References 31 publications

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“…From Equations (11), (15), and (24), the voltage across the four capacitors can be calculated as follows: V C1 = 233.33 V, V C2 = 166 V, V C3 = 333 V, and V o = 400 V. These findings are verified by Figure 9a. Figure 9b shows the currents flowing through the two inductors, I L1 and I L2 , which have ripple currents with frequencies equal to double the switching frequency of the converter (the periodic time of the ripple currents = 5 µS, and the periodic time of the switching = 10 µS).…”

Section: Case Study II (supporting

confidence: 61%

See 1 more Smart Citation

A New Three-Level Flying-Capacitor Boost Converter with an Integrated LC2D Output Network for Fuel-Cell Vehicles: Analysis and Design

2018

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In this paper, a new three-level boost converter with continuous input current, common ground, reduced voltage stress on the power switches, and wide voltage gain range is proposed. The proposed converter is composed of a three-level flying-capacitor switching cell and an integrated LC2D output network. The LC2D output network enhances the voltage gain of the converter and reduces the voltage stress on the power switches. The proposed converter is a good candidate to interface fuel cells to the dc-link bus of the three-phase inverter of an electric vehicle (EV). A full steady-state analysis of the proposed converter in the continuous conduction mode (CCM) is given in this paper. A 1.2 kW scaled-down laboratory setup was built using gallium nitride (GaN) transistors and silicon carbide (SiC) diodes to verify the feasibility of the proposed converter.

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Section: Case Study II (supporting

confidence: 61%

“…The conventional boost converter, theoretically, has an infinite voltage gain at unity duty cycle; however, due to the parasitic resistance in the passive component, the maximum gain is much lower, and the maximum gain keeps decreasing as the load current increases [11,12].…”

Section: Introductionmentioning

confidence: 99%

A New Three-Level Flying-Capacitor Boost Converter with an Integrated LC2D Output Network for Fuel-Cell Vehicles: Analysis and Design

2018

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“…Researchers have performed a series of studies on the topology design and control strategy of DC/DC converters for fuel cell electric vehicles. Reference [9] proposed a boost DC-DC converter based on switched capacitors, which can achieve a wide voltage auth-infogain range by using a simple structure. Reference [10] proposed a wide-range zero-voltage switching (ZVS) active clamp current-fed push-pull converter for fuel cells.…”

Section: Introductionmentioning

confidence: 99%

Feedforward-Double Feedback Control System of Dual-Switch Boost DC/DC Converters for Fuel Cell Vehicles

et al. 2019

Energies

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DC/DC converters for fuel cell electric vehicles need not only high boost ratio and high efficiency, but also strong anti-jamming capability. Therefore, it is especially important to devise a control method with strong robustness under the premise of an appropriate topology. In this paper, a simple dual-switch boost converter topology is adopted. We use the state space averaging method to build a small signal model, and based on this model, we propose a feedforward-double feedback control system for continuous conduction mode (CCM) mode. Simulation and experimental results show that the proposed feedforward-double feedback control system improves the robustness of the system while ensuring a high boost ratio and efficiency, and solves the problem of weak output characteristics of fuel cells. The control effect is similar to the sliding mode control, which is known for its robustness, while the rise time of step response is only 1/10 of that of the voltage feedback control system. When the output voltage of the DC/DC converter is 55 V, the DC/DC converter using feedforward-double feedback control system is more robust than the voltage feedback control system under sudden change of load.

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“…The coupling inductor used a small magnetized inductor to reduce the current ripple at the input end. Study [17] proposed a single-switch boost DC/DC converter with a diode-capacitor module. The converter used a power switch and a small amount of inductance and capacitance.…”

Section: Introductionmentioning

confidence: 99%

Research on Four-Phase Interleaved Step-Up DC/DC Converter for Photovoltaic Energy Storage System

Wu¹,

B²,

Du³

et al. 2019

Preprint

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Intended for the high voltage gain and wide-range operation of DC/DC converters for photovoltaic energy storage systems, a topology for four-phase interleaved DC/DC converters for photovoltaic power generation is proposed. This topology increases output voltage for output in series, and reduces the input current ripple by paralleling the input. Compared with traditional boost converter topology, the proposed topology reduces the output current and output voltage ripple, reduces the stress of the switching device, and reduces the withstanding voltage of the output capacitor under the premise of ensuring the boost ratio. Experimental results show that the maximum efficiency of the converter reaches 95.37%. Compared with traditional boost converters, the proposed converter offers obvious advantages in efficiency under the conditions that the output voltage and load are variable.

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Single-Switch, Wide Voltage-Gain Range, Boost DC–DC Converter for Fuel Cell Vehicles

Cited by 72 publications

References 31 publications

A New Three-Level Flying-Capacitor Boost Converter with an Integrated LC2D Output Network for Fuel-Cell Vehicles: Analysis and Design

A New Three-Level Flying-Capacitor Boost Converter with an Integrated LC2D Output Network for Fuel-Cell Vehicles: Analysis and Design

Feedforward-Double Feedback Control System of Dual-Switch Boost DC/DC Converters for Fuel Cell Vehicles

Research on Four-Phase Interleaved Step-Up DC/DC Converter for Photovoltaic Energy Storage System

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