Hybrid control strategy to extend the ZVS range of a dual active bridge converter

Iyer, Vishnu Mahadeva; Gulur, Srinivas; Bhattacharya, Subhashish

doi:10.1109/apec.2017.7930979

Cited by 14 publications

(3 citation statements)

References 18 publications

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“…The terminated small signal model for boost converter has been derived in literature work [27]. For Dual Active Bridge, a reduced order small signal model is considered [28] that ignores the high-frequency port dynamics.…”

Section: Hess Small Signal Modelmentioning

confidence: 99%

Adaptive Control of a Hybrid Energy Storage System for Wave Energy Conversion Application

Agarwal

Iyer

Anurag

et al. 2019

2019 IEEE Energy Conversion Congress and Exposition (ECCE)

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AGARWAL, APOORV. Adaptive Control of a Hybrid Energy Storage System for Wave Energy Conversion Application. (Under the direction of Dr. Subhashish Bhattacharya). A hybrid energy storage system (HESS), that comprises of a battery and a supercapacitor, is utilized to absorb the power and energy oscillations for a wave energy conversion system so as to inject a smooth power to the grid. Continuous variation in the wave profile presents a formidable challenge in terms of the power and energy allocation among the battery and supercapacitor. In this paper, an adaptive control strategy is proposed, wherein the power and energy sharing between the battery and super-capacitor is dynamically decided based on an optimization algorithm. The proposed algorithm is aimed at optimizing the total losses in the hybrid energy storage system while simultaneously maximizing the battery lifetime. Circuit simulation and experimental results from a hardware prototype are provided to validate the effectiveness of the proposed control scheme. Moreover, the change in wave profile and improvement of control strategy poses an additional challenge for sizing of HESS due to consistent change in the power sharing between battery and supercapacitor throughout its operation. Thus, a cost-optimal sizing of HESS is presented that takes into account the capital as well as the replacement cost.

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Section: Hess Small Signal Modelmentioning

confidence: 99%

Adaptive Control of a Hybrid Energy Storage System for Wave Energy Conversion Application

Agarwal

Iyer

Anurag

et al. 2019

2019 IEEE Energy Conversion Congress and Exposition (ECCE)

Self Cite

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“…However this extension cannot be infinitely increased and the other losses related to the frequency can be increased. In addition to the above methods, ZVS-range extensions based on some advanced modulation strategies, such as an extended-phase shift (EPS), a dual-phase shift (DPS) and a triple-phase shift (TPS), by introducing a higher degree of freedom, have been introduced in [16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

“…Most research [12][13][14][16][17][18][19][20] discusses the switching condition to judge the ZVS under a current-based method, in which the current direction at the switching instant is simply used to judge whether the switching is ZVS or not. A charge-based method is much more precise method than the current-based method [21,22].…”

Section: Introductionmentioning

confidence: 99%

An Improved Charge-Based Method Extended to Estimating Appropriate Dead Time for Zero-Voltage-Switching Analysis in Dual-Active-Bridge Converter

Zhang

Isobe

2022

Energies

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This paper presents a comprehensive analysis of zero-voltage-switching (ZVS) realization with an improved charge-based method by considering both voltage dependency parasitic capacitance and dead time in dual-active-bridge (DAB) converters, when the voltage ratio between the primary and secondary sides does not match the turn ratio of the transformer. For this purpose, a unified equivalent circuit is proposed to represent the switching motions at all possible switching instances under the condition of one-leg manipulation. The combinations of switching cases can be presented in a table to build the corresponding equivalent circuit for ZVS analysis. Combined with the improved charge-based method, the common solutions of the minimum required switching current and the appropriate dead-time range for each equivalent circuit to realize ZVS are deduced. The allowable range of the dead time for ZVS as a function of the switching current is analyzed to determine the appropriate dead time. Once the switching current and dead-time range are derived, the model-based lowest switching current control method can be used to achieve ZVS by using the appropriate amount of both factors. Experiments using a 4 kW DAB prototype were conducted to verify the theoretical analyses.

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A Generalized Design Methodology of Dual Active Bridge DC-DC Converters for DC Power Distribution

Terada

Nakashima

et al. 2021

2021 IEEE Applied Power Electronics Conference and Exposition (APEC)

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Hybrid control strategy to extend the ZVS range of a dual active bridge converter

Cited by 14 publications

References 18 publications

Adaptive Control of a Hybrid Energy Storage System for Wave Energy Conversion Application

Adaptive Control of a Hybrid Energy Storage System for Wave Energy Conversion Application

An Improved Charge-Based Method Extended to Estimating Appropriate Dead Time for Zero-Voltage-Switching Analysis in Dual-Active-Bridge Converter

A Generalized Design Methodology of Dual Active Bridge DC-DC Converters for DC Power Distribution

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