Optimal design methodology for dual active bridge converter under wide voltage variation

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

doi:10.1109/itec.2017.7993306

Cited by 49 publications

(14 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…With this arrangement, a voltage utilization ratio of 0.67 and 0.55 on the primary and secondary sides, respectively, can be achieved for the 10‐kV SiC‐MOSFETs. The transformer turns ratio (n:1) for the DAB converter is chosen as the ratio of the primary‐ to secondary‐side DC bus voltage to ensure the zero voltage switching (ZVS) for an extended range of loading conditions [22]. For an optimal‐phase shift control with a switching frequency of 10 kHz and considering a phase shift angle of 45° at rated power, the electrical specifications for the DAB converter and MF transformer are presented in Table I.…”

Section: Isolated Bidirectional Dc–dc Convertermentioning

confidence: 99%

A 10‐kV SiC‐MOSFET (Gen‐3) Half‐Bridge Module‐Based Isolated Bidirectional DC–DC Converter Block for Medium‐Voltage High‐Power Applications

Acharya¹,

Anurag

Chattopadhyay

et al. 2020

IEEJ Transactions Elec Engng

Self Cite

View full text Add to dashboard Cite

The packaging technology for the medium-voltage silicon carbide (SiC)-metal oxide semiconductor field-effect transistor (MOSFETs) has come a long way since its inception. Now, it is feasible to design half-bridge power modules based on 10-kV SiC-MOSFETs for higher current applications. This paves the way for many application areas for these devices, particularly for medium-voltage and high-power applications. This paper presents a design of a modular medium-voltage, high-power isolated DC-DC converter enabled by these 10-kV SiC-MOSFETs-based power modules. The design objectives are targeted at increasing the efficiency, power density, and interoperability. The proposed DC-DC converter is aimed for applications like DC distribution for the data centers, subsea power transmission, offshore wind farms, and photovoltaic energy transmission-distribution-coordination; electric ship DC power transmission; solid-state distribution transformer, etc.

show abstract

Section: Isolated Bidirectional Dc–dc Convertermentioning

confidence: 99%

A 10‐kV SiC‐MOSFET (Gen‐3) Half‐Bridge Module‐Based Isolated Bidirectional DC–DC Converter Block for Medium‐Voltage High‐Power Applications

Acharya¹,

Anurag

Chattopadhyay

et al. 2020

IEEJ Transactions Elec Engng

Self Cite

View full text Add to dashboard Cite

show abstract

“…An approximate loss model for simple phase shift modulation for a DAB converter is presented in [31]. The total DAB loss is given by Equation (3.5).…”

Section: Power Converter (Dab) Loss 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

View full text Add to dashboard Cite

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.

show abstract

“…Efficiency is influenced by a number of design and operation parameters. When considering modulation schemes, a couple of important issues are the high conduction loss, especially when operating at input-output voltage ratios different from the transformer turns ratio [13], [14], and the high switching loss in absence of zero voltage switching (ZVS) turn-on, as typically happens at light-load [15], [16]. Several modulation strategies have been presented in the literature to cope with these issues [17]- [19].…”

Section: Introductionmentioning

confidence: 99%

A Low Complexity Algorithm for Efficiency Optimization of Dual Active Bridge Converters

Pistollato

Zanatta

Caldognetto

et al. 2021

IEEE Open J. Power Electron.

View full text Add to dashboard Cite

This paper proposes a triple phase shift modulation (TPS) with an optimization technique that aims at maximizing the efficiency of the dual active bridge converter. Such a converter is often used to interface renewable or energy storage systems in smart dc power systems, where loss minimization via TPS is crucial, especially at light-load conditions. In this paper, favorable modulation parameters are found first, aiming at minimum rms currents and zero voltage switching, by considering only some fundamental converter parameters, namely, the input and output voltages, the transformer ratio, and the leakage inductance. Then, on the basis of the closed-form analytical description of the converter behavior over the determined modulation patterns, trajectories in the modulation planes that are capable of improving the total efficiency are identified. It is shown that such trajectories lead to close-to-optimal efficiency operation, which can be exploited to implement fast perturb-and-observe methods requiring just minimal converter parameters knowledge. The results are verified experimentally on a 1.5-kW prototype. It is shown that the proposed approach achieves close-to-optimal efficiency operation under different input voltages, being the error with respect to the measured optimal points obtained by a brute-force approach lower than about 0.2%. Index Terms-Dual active bridge (DAB), light-load operation, maximum efficiency point identification, TPS optimization, zero voltage switching (ZVS).

show abstract

Optimal design methodology for dual active bridge converter under wide voltage variation

Cited by 49 publications

References 10 publications

A 10‐kV SiC‐MOSFET (Gen‐3) Half‐Bridge Module‐Based Isolated Bidirectional DC–DC Converter Block for Medium‐Voltage High‐Power Applications

A 10‐kV SiC‐MOSFET (Gen‐3) Half‐Bridge Module‐Based Isolated Bidirectional DC–DC Converter Block for Medium‐Voltage High‐Power Applications

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

A Low Complexity Algorithm for Efficiency Optimization of Dual Active Bridge Converters

Contact Info

Product

Resources

About