Design and Performance of a Bidirectional Isolated DC–DC Converter for a Battery Energy Storage System

Tan, Nadia M. L.; Abe, Takahiro; Akagi, Hirofumi

doi:10.1109/tpel.2011.2108317

Cited by 418 publications

(160 citation statements)

References 20 publications

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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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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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“…A bidirectional isolated dc-dc converter with highfrequency galvanic isolation is one of the technologies that enables the integration of energy storage devices such as batteries and electric double-layer capacitors to the utility grid [2][3][4][5][6]. The bidirectional operation of the converter easily charges and discharges energy storage devices.…”

Section: Introductionmentioning

confidence: 99%

Experimental Verification of a Battery Energy Storage System for Integration with Photovoltaic Generators

Singh

Taghizadeh

Tan

et al. 2017

Advances in Power Electronics

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This paper presents the experimental verification of a 2 kW battery energy storage system (BESS). The BESS comprises a full-bridge bidirectional isolated dc-dc converter and a PWM converter that is intended for integration with a photovoltaic (PV) generator, resulting in leveling of the intermittent output power from the PV generator at the utility side. A phase-shift controller is also employed to manage the charging and discharging operations of the BESS based on PV output power and battery voltage. Moreover, a current controller that uses the -synchronous reference frame is proposed to regulate the dc voltage at the high-voltage side (HVS) to ensure that the voltage ratio of the HVS with low-voltage side (LVS) is equivalent to the transformer turns ratio. The proposed controllers allow fast response to changes in real power requirements and results in unity power factor current injection at the utility side. In addition, the efficient active power injection is achieved as the switching losses are minimized. The peak efficiency of the bidirectional isolated dc-dc converter is measured up to 95.4% during battery charging and 95.1% for battery discharging.

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“…Besides, the bidirectional DC/DC converter can be used to exchange power between the battery and the grid to satisfy the requirements of vehicle-to-grid (V2G) operation of EVs, which is shown in Figure 2 [7,8]. Bidirectional DC/DC converters can be classified into isolated converters and non-isolated converters [9,10]. Non-isolated converters usually have simple topologies and fewer components, but they face challenges in high-gain voltage conversion and galvanic isolation.…”

Section: Introductionmentioning

confidence: 99%

“…Similarly, another partially isolated multi-port DC/DC converter is proposed by using separate bidirectional half-bridge DC/DC converters for two energy sources, and high controllability is provided for power conditioning [17]. Bidirectional DC/DC converters can be classified into isolated converters and non-isolated converters [9,10]. Non-isolated converters usually have simple topologies and fewer components, but they face challenges in high-gain voltage conversion and galvanic isolation.…”

Section: Introductionmentioning

confidence: 99%

The Chaotic-Based Control of Three-Port Isolated Bidirectional DC/DC Converters for Electric and Hybrid Vehicles

et al. 2016

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Three-port isolated (TPI) bidirectional DC/DC converters have three energy ports and offer advantages of large voltage gain, galvanic isolation ability and high power density. For this reason this kind of converters are suitable to connect different energy sources and loads in electric and hybrid vehicles. The purpose of this paper is to propose chaotic modulation and the related control scheme for TPI bidirectional DC/DC converters, in such a way that the switching harmonic peaks can be suppressed in spectrum and the conducted electromagnetic interference (EMI) is reduced. Two chaotic modulation strategies, namely the continuously chaotic modulation and the discretely chaotic modulation are presented. These two chaotic modulation strategies are applied for TPI bidirectional DC/DC converters with shifted-phase angle based control and phase-shifted PWM control. Both simulation and experiments are given to verify the validity of the proposed chaotic modulation-based control schemes.

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Design and Performance of a Bidirectional Isolated DC–DC Converter for a Battery Energy Storage System

Cited by 418 publications

References 20 publications

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

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

Experimental Verification of a Battery Energy Storage System for Integration with Photovoltaic Generators

The Chaotic-Based Control of Three-Port Isolated Bidirectional DC/DC Converters for Electric and Hybrid Vehicles

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