Dynamic and Balanced Control of Three-Phase High-Power Dual-Active Bridge DC–DC Converters in DC-Grid Applications

Engel, Stefan P.; Soltau, Nils; Stagge, Hanno; Doncker, Rik W. De

doi:10.1109/tpel.2012.2209461

Cited by 202 publications

(95 citation statements)

References 27 publications

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“…The corresponding simulation results Energies 2016, 9, 180 9 of 15 were also made utilizing the PSIM simulation software [27]. The parameters are listed in Table 1.…”

Section: Simulation and Experimental Resultsmentioning

confidence: 99%

A High-Gain Three-Port Power Converter with Fuel Cell, Battery Sources and Stacked Output for Hybrid Electric Vehicles and DC-Microgrids

Lai

Yang

2016

Energies

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This paper proposes a novel high-gain three-port power converter with fuel cell (FC), battery sources and stacked output for a hybrid electric vehicle (HEV) connected to a dc-microgrid. In the proposed power converter, the load power can be flexibly distributed between the input sources. Moreover, the charging or discharging of the battery storage device can be controlled effectively using the FC source. The proposed converter has several outputs in series to achieve a high-voltage output, which makes it suitable for interfacing with the HEV and dc-microgrid. On the basis of the charging and discharging states of the battery storage device, two power operation modes are defined. The proposed power converter comprises only one boost inductor integrated with a flyback transformer; the boost and flyback circuit output terminals are stacked to increase the output voltage gain and reduce the voltage stress on the power devices. This paper presents the circuit configuration, operating principle, and steady-state analysis of the proposed converter, and experiments conducted on a laboratory prototype are presented to verify its effectiveness.

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“…The corresponding simulation results Energies 2016, 9, 180 9 of 15 were also made utilizing the PSIM simulation software [27]. The parameters are listed in Table 1.…”

Section: Simulation and Experimental Resultsmentioning

confidence: 99%

A High-Gain Three-Port Power Converter with Fuel Cell, Battery Sources and Stacked Output for Hybrid Electric Vehicles and DC-Microgrids

Lai

Yang

2016

Energies

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“…Furthermore, the phase currents and the output currents of the converter can be seamlessly adjusted within less than one switching period resulting in a highly dynamic control of the power flow using a feed-forward control [28], [29].…”

Section: Galvanically Isolated Dc-dc Convertersmentioning

confidence: 99%

Key Components of Modular Propulsion Systems for Next Generation Electric Vehicles

et al. 2017

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Abstract-The objective of this paper is to provide an overview of emerging technologies for modular power converter architectures for electric vehicles. Nowadays, the most common electrical drive-train architecture exhibits one single inverter which is directly tied to the battery. As a consequence, only one high-voltage battery module can be applied and the dc-link voltage of the inverter and its apparent power rating is directly dependent on the available battery voltage. To overcome this restriction, modern power converter architectures with a higher degree of freedom have been proposed. These architectures exhibit modular dc-dc converters to allow different battery technologies to be linked to drive inverters operating independently from each other. To make this development feasible, new components and technologies are evolving which enhance the efficiency over mission cycles while ensuring further integration of the power-converter architectures.Wide-bandgap power semiconductors enable high switching frequencies and miniaturization of passive devices. Smart topology enhancements and control methods allow a significant loss reduction, in particular at light loads, resulting in a higher efficiency of the drive train over the entire driving cycle. Highly integrated bidirectional battery charger systems with intelligent charging strategies inhibit battery degradation and provide opportunities for grid stabilization. It is demonstrated how these technologies are realized and implemented to contribute to the development of future electric vehicles.

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“…magnitude of the transformer primary voltage v T1 transient value of the transformer primary voltage V T2 magnitude of the transformer secondary voltage v T2 transient value of the transformer secondary voltage I S1 rms current produced by V S1 I L_rms rms current flowing through the inductor L V L_rms rms voltage across the inductor L Q L reactive power produced by the inductor L I peak peak current of the inductor L I peak_min minimum value of I peak I rms_min minimum value of I L_rms I peak_min_G global minimum value of I peak I peak_min_L local minimum value of I peak INTRODUCTION Originally proposed in [1] for aerospace power applications, the topology of a dual active bridge (DAB) converter became popular in battery chargers [2], hybrid wind-photovoltaic systems [3], solid-state transformers (SSTs) [4], micro grids [5], and hybrid electric vehicles [6]. Compared with other isolated dc-dc topologies, the DAB converter shows many advantages, such as bi-directional power flow, inherent soft-switching capability, power controllability and high efficiency [7].…”

Section: T1mentioning

confidence: 99%

Reactive Power and Soft-Switching Capability Analysis of Dual-Active-Bridge DC-DC Converters with Dual-Phase-Shift Control

Wen¹,

Su²

2015

Journal of Power Electronics

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This paper focuses on a systematical and in-depth analysis of the reactive power and soft-switching regions of Dual Active Bridge (DAB) converters with dual-phase-shift (DPS) control to achieve high efficiency in a wide operating range. The key features of the DPS operating modes are characterized and verified by analytical calculation and experimental tests. The mathematical expressions of the reactive power are derived and the reductions of the reactive power are illustrated with respect to a wide range of output power and voltage conversion ratios. The ZVS soft-switching boundary of the DPS is presented and one more leg with ZVS capability is achieved compared with the CPS control. With the selection of the optimal operating mode, the optimal phase-shift pair is determined by performance indices, which include the minimum peak or rms inductor current. All of the theoretical analysis and optimizations are verified by experimental tests. The experimental results with the DPS demonstrate the efficiency improvement for different load conditions and voltage conversion ratios.

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Dynamic and Balanced Control of Three-Phase High-Power Dual-Active Bridge DC–DC Converters in DC-Grid Applications

Cited by 202 publications

References 27 publications

A High-Gain Three-Port Power Converter with Fuel Cell, Battery Sources and Stacked Output for Hybrid Electric Vehicles and DC-Microgrids

A High-Gain Three-Port Power Converter with Fuel Cell, Battery Sources and Stacked Output for Hybrid Electric Vehicles and DC-Microgrids

Key Components of Modular Propulsion Systems for Next Generation Electric Vehicles

Reactive Power and Soft-Switching Capability Analysis of Dual-Active-Bridge DC-DC Converters with Dual-Phase-Shift Control

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